{"generated":"2026-10-18T05:35","now":{"wave_m":1.22,"period_s":7.2,"period_convention":"Tm-1,0","wave_dir":"NNW","wind_kn":6.3,"wind_dir":"NE","wind_relation":"cross","gust_kn":13.2,"air_c":10.0,"feels_c":7.8,"water_c":17.6,"buoy":{"station":"IJgeul","hm0_cm":162,"at":"2026-10-18T03:00:00Z"},"buoys":[{"station":"IJgeul","hm0_cm":162,"at":"2026-10-18T03:00:00Z"},{"station":"IJmuiden","hm0_cm":247,"at":"2026-10-18T03:00:00Z"}],"oordeel":{"golf":"green","periode":"green","wind":"amber","water":"green"},"tags":["0.7 m windsea on the swell","steep 7.2s sea — collapses, little shoulder","cross 6kn","model-light wind (coast typically reads ~9kn)"]},"today":{"score":6.3,"band":{"key":"good","colour":"green"},"size":{"nl":"borsthoog","en":"chest-high","de":"brusthoch"},"windows":[{"from":"17:00","to":"19:00","score":6.3,"wave_m":0.86,"period_s":6.8,"wind_kn":6.2,"wind_relation":"offshore","tij":"laag","band":"good","beste":true}],"tags":["0.3 m windsea on the swell","clean sea for its size","offshore 6kn","model-light wind (coast typically reads ~9kn)","low light","incoming tiny-wave window"],"flags":[],"best_window":{"from":"17:00","to":"19:00","score":6.3,"wave_m":0.86,"period_s":6.8,"wind_kn":6.2,"wind_relation":"offshore","tij":"laag","band":"good","beste":true},"had_session":true,"best_hour":{"at":"18:00","score":6.3,"wave_m":0.86,"period_s":6.8,"wind_kn":6.2,"wind_relation":"offshore"}},"tomorrow":{"date":"2026-10-19","score":3.5,"band":{"key":"marginal","colour":"orange"},"windows":[],"tags":["0.4 m windsea on the swell","clean sea for its size","offshore 10kn","model-light wind (coast typically reads ~14kn)","gusty","low light","high-tide drown-out"],"flags":[],"best_hour":{"at":"09:00","score":3.5,"wave_m":0.6,"period_s":7.0,"wind_kn":9.7,"wind_relation":"offshore","wave_dir":"NNW","wind_dir":"E"},"best_window":null,"read":{"uitleg":{"nl":"Net te weinig voor een echte sessie. Op een longboard pak je nog wel een golf.","en":"Just short of a proper session. On a longboard you'll still catch the odd wave.","de":"Wenig Welle. Mit viel Volumen erwischst du vielleicht ein paar Wellen."},"drift_advies":null,"wind":{"kwaliteit":"schoon","nl":"Aflandig, en dat houdt de golven glad.","en":"Offshore, which keeps the faces clean.","de":"Der Wind kommt vom Land, die beste Richtung für diesen Strand."},"niveau":{"key":"intermediate","nl":"Klein, met lange pauzes tussen de sets.","en":"Just too small. A longboard might pick off a few waves.","de":"Knapp zu wenig. Mit dem Longboard geht vielleicht die eine oder andere Welle."},"board":{"nl":"Ga je toch, dan is het een longboard of softtop. Op iets korters pak je geen golf.","en":"Too little for a session. If you go anyway, bring the longest board you own. On a longboard or soft-top you'll still catch a few waves.","de":"Zu wenig für eine Session. Wenn du trotzdem gehst, nimm dein längstes Board mit. Mit einem Longboard oder Softboard erwischst du noch ein paar Wellen."},"getij":{"richting":"komend","keert_over_min":50,"keert_om":"09:50","nl":"Het tij komt op, om 09:50 is het hoogwater.","en":"The tide's coming in, with high tide at 09:50.","de":"Das Wasser läuft auf, Hochwasser um 09:50."}},"levels":[{"key":"beginner","nl":"Beginner","en":"Beginner","de":"Einsteiger","score":6.5,"band":{"key":"good","colour":"green"},"verdict":{"nl":"Een prima dag voor een les.","en":"Enough wave to stand up on, and no more than that.","de":"Genug Welle zum Aufstehen, und nicht mehr als das."},"board":{"nl":"Softtop.","en":"Soft-top.","de":"Softboard."}},{"key":"intermediate","nl":"Gevorderd","en":"Intermediate","de":"Fortgeschrittene","score":3.5,"band":{"key":"marginal","colour":"orange"},"verdict":{"nl":"Klein, met lange pauzes tussen de sets.","en":"Just too small. A longboard might pick off a few waves.","de":"Knapp zu wenig. Mit dem Longboard geht vielleicht die eine oder andere Welle."},"board":{"nl":"Funboard.","en":"Funboard.","de":"Funboard."}},{"key":"advanced","nl":"Ervaren","en":"Experienced","de":"Erfahrene","score":3.3,"band":{"key":"marginal","colour":"orange"},"verdict":{"nl":"Weinig, en er is een flink board nodig om er iets van te maken.","en":"Not much, and it takes plenty of volume to make anything of it.","de":"Wenig, und es braucht viel Volumen, um etwas daraus zu machen."},"board":{"nl":"Funboard of fish.","en":"Funboard or fish.","de":"Funboard oder Fish."}}],"wetsuit":"3/2 fullsuit  [water 17.6°C]","wetsuit_nl":"3/2 fullsuit","wetsuit_note":null},"tide":{"next_high":{"time":"2026-10-18T08:50","height_m":0.47},"next_low":{"time":"2026-10-18T16:20","height_m":-0.81},"extremes":[{"time":"2026-10-17T15:40","kind":"l","height_m":-0.55},{"time":"2026-10-17T20:50","kind":"h","height_m":0.88},{"time":"2026-10-18T04:10","kind":"l","height_m":-0.52},{"time":"2026-10-18T08:50","kind":"h","height_m":0.47},{"time":"2026-10-18T16:20","kind":"l","height_m":-0.81},{"time":"2026-10-18T21:10","kind":"h","height_m":0.62},{"time":"2026-10-19T04:40","kind":"l","height_m":-0.61},{"time":"2026-10-19T09:50","kind":"h","height_m":0.26},{"time":"2026-10-19T17:20","kind":"l","height_m":-0.77},{"time":"2026-10-19T22:10","kind":"h","height_m":0.5},{"time":"2026-10-20T06:27","kind":"l","height_m":-0.31},{"time":"2026-10-20T11:09","kind":"h","height_m":0.46},{"time":"2026-10-20T18:48","kind":"l","height_m":-0.48},{"time":"2026-10-21T00:40","kind":"h","height_m":0.72}]},"drift":{"dir":"S","driver":"wave","v_ms":-0.28,"strength":"strong","confidence":"high","nl":"Er loopt een sterke stroming langs het strand, naar het zuiden, door de golven.","en":"There's a strong current running south along the beach, driven by the waves.","de":"Die Strömung am Strand ist stark und läuft nach Süden, von den Wellen getrieben."},"wetsuit":"3/2 fullsuit  [water 17.6°C]","wetsuit_nl":"3/2 fullsuit","wetsuit_note":null,"levels":[{"key":"beginner","nl":"Beginner","en":"Beginner","de":"Einsteiger","score":3.9,"band":{"key":"marginal","colour":"orange"},"verdict":{"nl":"Het probleem is de stroming: beginners zijn vooral bezig op hun plek te blijven.","en":"With this current a beginner drifts sideways faster than they ride forwards.","de":"Bei dieser Strömung treiben Einsteiger schneller seitwärts, als sie vorwärts surfen."},"board":{"nl":"Softtop, en blijf in het schuim.","en":"Soft-top, and stay in the whitewater.","de":"Softboard, und bleib im Weißwasser."}},{"key":"intermediate","nl":"Gevorderd","en":"Intermediate","de":"Fortgeschrittene","score":6.3,"band":{"key":"good","colour":"green"},"verdict":{"nl":"Goede maat, en de golven lopen open in plaats van dicht te klappen.","en":"Good size, and the waves peel instead of closing out.","de":"Eine richtige Session: genug Welle, und sie läuft."},"board":{"nl":"Funboard of shortboard.","en":"Funboard or shortboard.","de":"Funboard oder Shortboard."}},{"key":"advanced","nl":"Ervaren","en":"Experienced","de":"Erfahrene","score":5.8,"band":{"key":"good","colour":"green"},"verdict":{"nl":"Stevige golf, en clean genoeg voor lange ritten.","en":"Solid swell, and clean enough for long rides.","de":"Ordentliche Welle, und sauber genug für lange Ritte."},"board":{"nl":"Fish of shortboard.","en":"Fish or shortboard.","de":"Fish oder Shortboard."}}],"zones":{"coast_bearing_deg":22.0,"beach_normal_deg":290,"swell_dir":"NNW","wind_dir":"NE","wind_relation":"cross","wind_kn":6.3,"drift":{"dir":"S","driver":"wave","v_ms":-0.28,"strength":"strong"},"sectors":[{"key":"zuid","gebruik":["kite","school"],"waar":"Strandafgang Zuiderduin en zuidelijker","note":"Hier ligt de kitestrook. Op een winderige dag hangen er veel kites in de lucht.","nl":"Zuid","en":"South","de":"Süd","waar_en":"Zuiderduin beach entrance and south of it","waar_de":"Strandafgang Zuiderduin und weiter südlich","note_en":"The kite zone is here, so on a windy day the sky is full of kites.","note_de":"Hier liegt die Kitezone. An windigen Tagen sind viele Kites in der Luft."},{"key":"centrum","gebruik":["zwemmen","school"],"waar":"Boulevard de Favauge en het Fenemaplein","note":"Het drukste stuk strand. In het seizoen liggen hier bewaakte zwemvakken, en daarin surf je niet.","nl":"Centrum","en":"Centre","de":"Mitte","waar_en":"Boulevard de Favauge and Fenemaplein","waar_de":"Boulevard de Favauge und Fenemaplein","note_en":"The busiest stretch. In season there are lifeguarded swimming zones here, and they're off limits for surfing.","note_de":"Der belebteste Abschnitt. In der Saison gibt es hier bewachte Badebereiche, dort wird nicht gesurft."},{"key":"noord","gebruik":["school"],"waar":"Boulevard Barnaart tot de Noordboulevard","note":"Hier zitten de meeste surfscholen, dus 's ochtends staan er vaak groepen in het schuim.","nl":"Noord","en":"North","de":"Nord","waar_en":"Boulevard Barnaart up to the Noordboulevard","waar_de":"Boulevard Barnaart bis zum Noordboulevard","note_en":"Most of the surf schools are here, so mornings often have groups in the whitewater.","note_de":"Hier sind die meisten Surfschulen, morgens stehen deshalb oft Gruppen im Weißwasser."}]},"read":{"nl":"Er valt goed te surfen. 1,2 m, borsthoog, op 7 seconden uit het noordnoordwesten. Het waait 6 knopen (2 Bft) uit het noordoosten, zijwind, windstoten tot 13 knopen (4 Bft). Het hoogwater om 08:50 is nog ver weg. Laag water: de branding ligt verder uit dan bij hoog water, dus peddel je een stuk. Zo'n 120 tot 160 m vanaf de waterlijn, oftewel halverwege. Tel vanaf waar het water nu staat. Vandaag is het tussen 17:00 en 19:00 het best. Daarna wordt het snel donker. Het zeewater is 17,6°, warmer dan de lucht. Als je gaat: een funboard of shortboard en een 3/2 fullsuit.","en":"There's a proper session out there. 1.2 m (chest-high) at 7 seconds, out of the north-northwest. It's blowing 6 knots (2 Bft) from the northeast, cross-shore, gusting to 13 knots (4 Bft). High tide at 08:50 is still a long way off. Low water: the break sits further out than at high water, so it is a longer paddle. Roughly 120 to 160 m from the water's edge, in other words middle. Count from where the water is now. It's at its best today between 17:00 and 19:00. It gets dark soon after. At 17.6° the sea's warmer than the air. If you go: a funboard or shortboard and a 3/2 full wetsuit.","de":"Genug Welle, und sie läuft sauber. 1,2 m, brusthoch, bei 7 Sekunden aus Nordnordwesten. 6 Knoten (2 Bft) aus Nordosten, Sideshore, in Böen bis 13 Knoten (4 Bft). Hochwasser um 08:50 ist noch weit weg. Das Wasser steht niedrig, die Sandbänke brechen weiter vom Strand entfernt als bei Hochwasser. Etwa 120 bis 160 m ab der Wasserlinie, sprich mittendrin. Gezählt ab dem aktuellen Wasserstand. Heute am besten: 17:00 bis 19:00. Das ist kurz vor Sonnenuntergang, lange dauert es also nicht. Mit 17,6° ist das Meer wärmer als die Luft. Wer rausgeht, ist mit einem Funboard oder Shortboard und einem 3/2er Neo gut bedient.","alinea":{"nl":["Er valt goed te surfen. 1,2 m, borsthoog, op 7 seconden uit het noordnoordwesten.","Het waait 6 knopen (2 Bft) uit het noordoosten, zijwind, windstoten tot 13 knopen (4 Bft).","Het hoogwater om 08:50 is nog ver weg.","Laag water: de branding ligt verder uit dan bij hoog water, dus peddel je een stuk. Zo'n 120 tot 160 m vanaf de waterlijn, oftewel halverwege. Tel vanaf waar het water nu staat.","Vandaag is het tussen 17:00 en 19:00 het best.","Daarna wordt het snel donker.","Het zeewater is 17,6°, warmer dan de lucht.","Als je gaat: een funboard of shortboard en een 3/2 fullsuit."],"en":["There's a proper session out there. 1.2 m (chest-high) at 7 seconds, out of the north-northwest.","It's blowing 6 knots (2 Bft) from the northeast, cross-shore, gusting to 13 knots (4 Bft).","High tide at 08:50 is still a long way off.","Low water: the break sits further out than at high water, so it is a longer paddle. Roughly 120 to 160 m from the water's edge, in other words middle. Count from where the water is now.","It's at its best today between 17:00 and 19:00.","It gets dark soon after.","At 17.6° the sea's warmer than the air.","If you go: a funboard or shortboard and a 3/2 full wetsuit."],"de":["Genug Welle, und sie läuft sauber. 1,2 m, brusthoch, bei 7 Sekunden aus Nordnordwesten.","6 Knoten (2 Bft) aus Nordosten, Sideshore, in Böen bis 13 Knoten (4 Bft).","Hochwasser um 08:50 ist noch weit weg.","Das Wasser steht niedrig, die Sandbänke brechen weiter vom Strand entfernt als bei Hochwasser. Etwa 120 bis 160 m ab der Wasserlinie, sprich mittendrin. Gezählt ab dem aktuellen Wasserstand.","Heute am besten: 17:00 bis 19:00.","Das ist kurz vor Sonnenuntergang, lange dauert es also nicht.","Mit 17,6° ist das Meer wärmer als die Luft.","Wer rausgeht, ist mit einem Funboard oder Shortboard und einem 3/2er Neo gut bedient."]},"alinea_nl":["Er valt goed te surfen. 1,2 m, borsthoog, op 7 seconden uit het noordnoordwesten.","Het waait 6 knopen (2 Bft) uit het noordoosten, zijwind, windstoten tot 13 knopen (4 Bft).","Het hoogwater om 08:50 is nog ver weg.","Laag water: de branding ligt verder uit dan bij hoog water, dus peddel je een stuk. Zo'n 120 tot 160 m vanaf de waterlijn, oftewel halverwege. Tel vanaf waar het water nu staat.","Vandaag is het tussen 17:00 en 19:00 het best.","Daarna wordt het snel donker.","Het zeewater is 17,6°, warmer dan de lucht.","Als je gaat: een funboard of shortboard en een 3/2 fullsuit."],"alinea_en":["There's a proper session out there. 1.2 m (chest-high) at 7 seconds, out of the north-northwest.","It's blowing 6 knots (2 Bft) from the northeast, cross-shore, gusting to 13 knots (4 Bft).","High tide at 08:50 is still a long way off.","Low water: the break sits further out than at high water, so it is a longer paddle. Roughly 120 to 160 m from the water's edge, in other words middle. Count from where the water is now.","It's at its best today between 17:00 and 19:00.","It gets dark soon after.","At 17.6° the sea's warmer than the air.","If you go: a funboard or shortboard and a 3/2 full wetsuit."],"uitleg":{"nl":"Goede maat en de golven lopen netjes open.","en":"Good size, and the waves are peeling nicely.","de":"Genug Welle mit Form: sie baut auf und läuft, statt sofort zuzumachen."},"drift_advies":{"nl":"Je drijft naar het zuiden. Zoek voor je gaat een paal of trap op het strand uit en kijk af en toe of je er nog tegenover ligt. Je drijft sneller af dan je denkt.","en":"The current runs south along the beach. Pick a landmark on the boulevard before you go in, and check now and then that you're still level with it.","de":"Du treibst nach Süden. Such dir vor dem Reingehen einen Pfahl oder eine Treppe am Strand und prüf zwischendurch, ob du noch davor liegst: du treibst schneller ab, als du denkst."},"wind":{"kwaliteit":"schoon","nl":"Zijwind, maar licht genoeg om er weinig van te merken.","en":"Cross-shore, but light enough not to matter.","de":"Sideshore, aber so leicht, dass es kaum stört."},"niveau":{"key":"intermediate","nl":"Goede maat, en de golven lopen open in plaats van dicht te klappen.","en":"Good size, and the waves peel instead of closing out.","de":"Eine richtige Session: genug Welle, und sie läuft."},"board":{"nl":"Funboard of shortboard, allebei goed.","en":"A shortboard will do. A funboard is the safe bet.","de":"Ein Shortboard geht, ein Funboard ist die sichere Wahl."},"getij":{"richting":"komend","keert_over_min":194,"keert_om":"08:50","nl":"Het water komt op, met hoogwater om 08:50.","en":"The tide's coming in, with high tide at 08:50.","de":"Das Wasser läuft auf, Hochwasser um 08:50."}},"hourly":[{"t":"2026-10-18T00:00","score":5.1,"wave_m":1.48,"period_s":8.8,"wave_dir":"NNW","wind_kn":10.0,"wind_dir":"NNE","wind_relation":"cross","sun":"night","confidence":"med"},{"t":"2026-10-18T01:00","score":4.9,"wave_m":1.43,"period_s":8.9,"wave_dir":"NNW","wind_kn":9.8,"wind_dir":"NNE","wind_relation":"cross","sun":"night","confidence":"med"},{"t":"2026-10-18T02:00","score":4.9,"wave_m":1.39,"period_s":8.9,"wave_dir":"NNW","wind_kn":11.1,"wind_dir":"NNE","wind_relation":"cross","sun":"night","confidence":"med"},{"t":"2026-10-18T03:00","score":2.6,"wave_m":1.34,"period_s":7.2,"wave_dir":"NNW","wind_kn":8.6,"wind_dir":"NE","wind_relation":"cross","sun":"night","confidence":"med"},{"t":"2026-10-18T04:00","score":4.2,"wave_m":1.29,"period_s":7.2,"wave_dir":"NNW","wind_kn":7.3,"wind_dir":"NE","wind_relation":"cross","sun":"night","confidence":"med"},{"t":"2026-10-18T05:00","score":4.5,"wave_m":1.22,"period_s":7.2,"wave_dir":"NNW","wind_kn":6.3,"wind_dir":"NE","wind_relation":"cross","sun":"night","confidence":"med"},{"t":"2026-10-18T06:00","score":6.0,"wave_m":1.2,"period_s":8.1,"wave_dir":"NNW","wind_kn":7.5,"wind_dir":"NE","wind_relation":"cross","sun":"night","confidence":"med"},{"t":"2026-10-18T07:00","score":4.6,"wave_m":1.17,"period_s":8.4,"wave_dir":"NNW","wind_kn":8.6,"wind_dir":"NE","wind_relation":"cross","sun":"night","confidence":"med"},{"t":"2026-10-18T08:00","score":4.2,"wave_m":1.14,"period_s":8.4,"wave_dir":"NNW","wind_kn":9.4,"wind_dir":"NE","wind_relation":"cross","sun":"night","confidence":"med"},{"t":"2026-10-18T09:00","score":3.9,"wave_m":1.12,"period_s":6.9,"wave_dir":"NNW","wind_kn":8.5,"wind_dir":"NE","wind_relation":"cross","sun":"dawn","confidence":"med"},{"t":"2026-10-18T10:00","score":3.1,"wave_m":1.1,"period_s":6.8,"wave_dir":"N","wind_kn":9.4,"wind_dir":"NE","wind_relation":"cross","sun":"day","confidence":"med"},{"t":"2026-10-18T11:00","score":3.3,"wave_m":1.08,"period_s":6.7,"wave_dir":"N","wind_kn":10.8,"wind_dir":"NE","wind_relation":"cross","sun":"day","confidence":"med"},{"t":"2026-10-18T12:00","score":2.4,"wave_m":1.06,"period_s":6.7,"wave_dir":"N","wind_kn":10.4,"wind_dir":"NE","wind_relation":"cross","sun":"day","confidence":"med"},{"t":"2026-10-18T13:00","score":3.8,"wave_m":1.04,"period_s":8.2,"wave_dir":"N","wind_kn":10.2,"wind_dir":"NE","wind_relation":"cross","sun":"day","confidence":"med"},{"t":"2026-10-18T14:00","score":2.4,"wave_m":1.03,"period_s":6.6,"wave_dir":"N","wind_kn":9.4,"wind_dir":"NE","wind_relation":"cross","sun":"day","confidence":"med"},{"t":"2026-10-18T15:00","score":5.1,"wave_m":0.99,"period_s":6.6,"wave_dir":"N","wind_kn":7.8,"wind_dir":"ENE","wind_relation":"offshore","sun":"day","confidence":"med"},{"t":"2026-10-18T16:00","score":5.7,"wave_m":0.95,"period_s":6.7,"wave_dir":"N","wind_kn":7.0,"wind_dir":"ENE","wind_relation":"offshore","sun":"day","confidence":"med"},{"t":"2026-10-18T17:00","score":6.0,"wave_m":0.91,"period_s":6.8,"wave_dir":"N","wind_kn":6.8,"wind_dir":"ENE","wind_relation":"offshore","sun":"day","confidence":"med"},{"t":"2026-10-18T18:00","score":6.3,"wave_m":0.86,"period_s":6.8,"wave_dir":"N","wind_kn":6.2,"wind_dir":"E","wind_relation":"offshore","sun":"dusk","confidence":"med"},{"t":"2026-10-18T19:00","score":6.5,"wave_m":0.83,"period_s":6.8,"wave_dir":"N","wind_kn":5.6,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"high"},{"t":"2026-10-18T20:00","score":5.3,"wave_m":0.79,"period_s":6.9,"wave_dir":"N","wind_kn":6.5,"wind_dir":"ENE","wind_relation":"offshore","sun":"night","confidence":"high"},{"t":"2026-10-18T21:00","score":5.3,"wave_m":0.76,"period_s":6.9,"wave_dir":"N","wind_kn":7.8,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"high"},{"t":"2026-10-18T22:00","score":3.9,"wave_m":0.73,"period_s":6.9,"wave_dir":"N","wind_kn":8.3,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"high"},{"t":"2026-10-18T23:00","score":4.3,"wave_m":0.7,"period_s":7.0,"wave_dir":"N","wind_kn":8.4,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"high"},{"t":"2026-10-19T00:00","score":4.3,"wave_m":0.68,"period_s":7.0,"wave_dir":"N","wind_kn":9.9,"wind_dir":"ENE","wind_relation":"offshore","sun":"night","confidence":"med"},{"t":"2026-10-19T01:00","score":4.2,"wave_m":0.67,"period_s":7.0,"wave_dir":"N","wind_kn":9.9,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"med"},{"t":"2026-10-19T02:00","score":4.1,"wave_m":0.65,"period_s":6.9,"wave_dir":"N","wind_kn":9.3,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"med"},{"t":"2026-10-19T03:00","score":4.1,"wave_m":0.64,"period_s":6.8,"wave_dir":"N","wind_kn":8.7,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"med"},{"t":"2026-10-19T04:00","score":4.3,"wave_m":0.62,"period_s":6.5,"wave_dir":"N","wind_kn":8.8,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"high"},{"t":"2026-10-19T05:00","score":4.5,"wave_m":0.61,"period_s":7.7,"wave_dir":"NNW","wind_kn":9.0,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"high"},{"t":"2026-10-19T06:00","score":4.8,"wave_m":0.61,"period_s":7.5,"wave_dir":"NNW","wind_kn":8.8,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"high"},{"t":"2026-10-19T07:00","score":4.7,"wave_m":0.61,"period_s":7.3,"wave_dir":"NNW","wind_kn":8.9,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"high"},{"t":"2026-10-19T08:00","score":4.7,"wave_m":0.61,"period_s":7.1,"wave_dir":"NNW","wind_kn":9.4,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"high"},{"t":"2026-10-19T09:00","score":3.5,"wave_m":0.6,"period_s":7.0,"wave_dir":"NNW","wind_kn":9.7,"wind_dir":"E","wind_relation":"offshore","sun":"dawn","confidence":"high"},{"t":"2026-10-19T10:00","score":3.3,"wave_m":0.59,"period_s":6.9,"wave_dir":"NNW","wind_kn":8.6,"wind_dir":"E","wind_relation":"offshore","sun":"day","confidence":"med"},{"t":"2026-10-19T11:00","score":0.6,"wave_m":0.24,"period_s":4.8,"wave_dir":"NNE","wind_kn":8.7,"wind_dir":"E","wind_relation":"offshore","sun":"day","confidence":"med"},{"t":"2026-10-19T12:00","score":0.7,"wave_m":0.23,"period_s":4.8,"wave_dir":"NNE","wind_kn":8.7,"wind_dir":"E","wind_relation":"offshore","sun":"day","confidence":"high"},{"t":"2026-10-19T13:00","score":1.5,"wave_m":0.22,"period_s":5.5,"wave_dir":"N","wind_kn":9.5,"wind_dir":"E","wind_relation":"offshore","sun":"day","confidence":"med"},{"t":"2026-10-19T14:00","score":0.9,"wave_m":0.21,"period_s":4.9,"wave_dir":"NNE","wind_kn":9.3,"wind_dir":"E","wind_relation":"offshore","sun":"day","confidence":"high"},{"t":"2026-10-19T15:00","score":0.7,"wave_m":0.21,"period_s":4.6,"wave_dir":"ENE","wind_kn":8.9,"wind_dir":"E","wind_relation":"offshore","sun":"day","confidence":"high"},{"t":"2026-10-19T16:00","score":1.0,"wave_m":0.21,"period_s":4.5,"wave_dir":"ENE","wind_kn":9.3,"wind_dir":"E","wind_relation":"offshore","sun":"day","confidence":"high"},{"t":"2026-10-19T17:00","score":0.6,"wave_m":0.21,"period_s":4.4,"wave_dir":"ENE","wind_kn":9.4,"wind_dir":"E","wind_relation":"offshore","sun":"day","confidence":"high"},{"t":"2026-10-19T18:00","score":0.5,"wave_m":0.21,"period_s":4.1,"wave_dir":"ENE","wind_kn":8.7,"wind_dir":"E","wind_relation":"offshore","sun":"dusk","confidence":"med"},{"t":"2026-10-19T19:00","score":0.6,"wave_m":0.21,"period_s":4.1,"wave_dir":"ENE","wind_kn":8.3,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"med"},{"t":"2026-10-19T20:00","score":0.5,"wave_m":0.21,"period_s":4.1,"wave_dir":"ENE","wind_kn":10.3,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"med"},{"t":"2026-10-19T21:00","score":0.4,"wave_m":0.22,"period_s":4.0,"wave_dir":"ENE","wind_kn":10.4,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"med"},{"t":"2026-10-19T22:00","score":0.5,"wave_m":0.23,"period_s":3.8,"wave_dir":"ENE","wind_kn":11.4,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"med"},{"t":"2026-10-19T23:00","score":0.3,"wave_m":0.23,"period_s":3.6,"wave_dir":"E","wind_kn":11.2,"wind_dir":"E","wind_relation":"offshore","sun":"night","confidence":"med"}],"outlook":[{"date":"2026-10-18","score":6.3,"band":{"key":"good","colour":"green"},"best_time":"18:00","wave_m":0.86,"period_s":6.8,"wave_dir":"N","wind_kn":6.2,"wind_dir":"E","wind_relation":"offshore","confidence":"med","stars":"★★★☆☆","delta":null,"marks":[],"wx":{"glyph":"☁️","label":{"nl":"bewolkt","en":"overcast","de":"bedeckt"}},"air_c":10.8,"precip_pct":2,"single_model":false,"runs":{"fun":{"from":"15:00","to":"19:00","h":4},"good":{"from":"16:00","to":"19:00","h":3},"prime":null}},{"date":"2026-10-19","score":3.5,"band":{"key":"marginal","colour":"orange"},"best_time":"09:00","wave_m":0.6,"period_s":7.0,"wave_dir":"NNW","wind_kn":9.7,"wind_dir":"E","wind_relation":"offshore","confidence":"high","stars":"★★☆☆☆","delta":"down","marks":[],"wx":{"glyph":"☁️","label":{"nl":"bewolkt","en":"overcast","de":"bedeckt"}},"air_c":10.8,"precip_pct":0,"single_model":false,"runs":{"fun":null,"good":null,"prime":null},"windows":[],"read":{"nl":"Maandag wordt matig. De swell is 0,6 m, kniehoog, op 7 seconden uit het noordnoordwesten. Om 09:00 staat er 10 knopen wind (3 Bft) uit het oosten, aflandig. Geen sessie, de hele dag niet. Hooguit iets voor een les of een softtop. Bewolkt bij 11°, en het blijft droog. De verwachting staat vrij vast.","en":"Monday looks poor. 0.6 m, knee-high, at 7 seconds out of the north-northwest. By 09:00 there's 10 knots (3 Bft) from the east, offshore. There's no proper session in it. Only really one for lessons or a soft-top. Overcast, 11° and dry. The forecast looks fairly settled.","de":"Montag wird mäßig. 0,6 m, kniehoch, bei 7 Sekunden aus Nordnordwesten. Gegen 09:00 weht es mit 10 Knoten (3 Bft) aus Osten, ablandig. Den ganzen Tag keine Session. Höchstens was für einen Kurs oder ein Softboard. Bedeckt, 11° und trocken. Die Vorhersage steht ziemlich fest.","alinea":{"nl":["Maandag wordt matig. De swell is 0,6 m, kniehoog, op 7 seconden uit het noordnoordwesten.","Om 09:00 staat er 10 knopen wind (3 Bft) uit het oosten, aflandig.","Geen sessie, de hele dag niet. Hooguit iets voor een les of een softtop.","Bewolkt bij 11°, en het blijft droog.","De verwachting staat vrij vast."],"en":["Monday looks poor. 0.6 m, knee-high, at 7 seconds out of the north-northwest.","By 09:00 there's 10 knots (3 Bft) from the east, offshore.","There's no proper session in it. Only really one for lessons or a soft-top.","Overcast, 11° and dry.","The forecast looks fairly settled."],"de":["Montag wird mäßig. 0,6 m, kniehoch, bei 7 Sekunden aus Nordnordwesten.","Gegen 09:00 weht es mit 10 Knoten (3 Bft) aus Osten, ablandig.","Den ganzen Tag keine Session. Höchstens was für einen Kurs oder ein Softboard.","Bedeckt, 11° und trocken.","Die Vorhersage steht ziemlich fest."]}}},{"date":"2026-10-20","score":1.7,"band":{"key":"flat","colour":"grey"},"best_time":"18:00","wave_m":0.18,"period_s":3.4,"wave_dir":"E","wind_kn":12.1,"wind_dir":"ESE","wind_relation":"offshore","confidence":"med","stars":"★☆☆☆☆","delta":"down","marks":["wind_coarse"],"wx":{"glyph":"☁️","label":{"nl":"bewolkt","en":"overcast","de":"bedeckt"}},"air_c":11.4,"precip_pct":15,"single_model":false,"runs":{"fun":null,"good":null,"prime":null},"windows":[],"read":{"nl":"Dinsdag geen goede golven. 0,2 m, flat, op 3 seconden uit het oosten. Rond 18:00 waait het 12 knopen (4 Bft) uit het oostzuidoosten, aflandig. Hoger dan 1.7/10 wordt het niet. Te weinig om een board mee te nemen. Bewolkt, 11° en 15% kans op regen. Hoe hoog de golven worden, is nog onzeker. Zo ver vooruit is de wind nog onzeker.","en":"Tuesday is a write-off. The swell's 0.2 m, flat, at 3 seconds from the east. By 18:00 there's 12 knots (4 Bft) from the east-southeast, offshore. It tops out at 1.7/10. Too little to be worth bringing a board. Overcast, 11°, 15% chance of rain. The wave height is still uncertain. The wind is still uncertain that far ahead.","de":"Am Dienstag keine guten Wellen. Der Swell hat 0,2 m, flach, bei 3 Sekunden aus Osten. Gegen 18:00 weht es mit 12 Knoten (4 Bft) aus Ostsüdosten, ablandig. Über 1.7/10 kommt es nicht hinaus. Ein Tag zum Schwimmen, nicht zum Surfen. Bedeckt, 11° und 15% Regenwahrscheinlichkeit. Die Wellenhöhe steht noch nicht fest. So weit voraus ist der Wind noch unsicher.","alinea":{"nl":["Dinsdag geen goede golven. 0,2 m, flat, op 3 seconden uit het oosten.","Rond 18:00 waait het 12 knopen (4 Bft) uit het oostzuidoosten, aflandig.","Hoger dan 1.7/10 wordt het niet. Te weinig om een board mee te nemen.","Bewolkt, 11° en 15% kans op regen.","Hoe hoog de golven worden, is nog onzeker. Zo ver vooruit is de wind nog onzeker."],"en":["Tuesday is a write-off. The swell's 0.2 m, flat, at 3 seconds from the east.","By 18:00 there's 12 knots (4 Bft) from the east-southeast, offshore.","It tops out at 1.7/10. Too little to be worth bringing a board.","Overcast, 11°, 15% chance of rain.","The wave height is still uncertain. The wind is still uncertain that far ahead."],"de":["Am Dienstag keine guten Wellen. Der Swell hat 0,2 m, flach, bei 3 Sekunden aus Osten.","Gegen 18:00 weht es mit 12 Knoten (4 Bft) aus Ostsüdosten, ablandig.","Über 1.7/10 kommt es nicht hinaus. Ein Tag zum Schwimmen, nicht zum Surfen.","Bedeckt, 11° und 15% Regenwahrscheinlichkeit.","Die Wellenhöhe steht noch nicht fest. So weit voraus ist der Wind noch unsicher."]}}},{"date":"2026-10-21","score":3.2,"band":{"key":"marginal","colour":"orange"},"best_time":"13:00","wave_m":1.22,"period_s":5.0,"wave_dir":"SW","wind_kn":8.7,"wind_dir":"S","wind_relation":"cross","confidence":"med","stars":"★★☆☆☆","delta":"up","marks":["wind_coarse"],"wx":{"glyph":"🌤️","label":{"nl":"licht bewolkt","en":"fair","de":"leicht bewölkt"}},"air_c":12.3,"precip_pct":30,"single_model":false,"runs":{"fun":null,"good":null,"prime":null}},{"date":"2026-10-22","score":3.0,"band":{"key":"marginal","colour":"orange"},"best_time":"12:00","wave_m":1.73,"period_s":7.0,"wave_dir":"WSW","wind_kn":13.6,"wind_dir":"SSW","wind_relation":"cross","confidence":"high","stars":"★★☆☆☆","delta":null,"marks":["wind_coarse"],"wx":{"glyph":"🌦️","label":{"nl":"motregen","en":"drizzle","de":"Nieselregen"}},"air_c":10.8,"precip_pct":56,"single_model":false,"runs":{"fun":null,"good":null,"prime":null}},{"date":"2026-10-23","score":3.8,"band":{"key":"marginal","colour":"orange"},"best_time":"15:00","wave_m":1.84,"period_s":7.4,"wave_dir":"WSW","wind_kn":7.8,"wind_dir":"ESE","wind_relation":"offshore","confidence":"low","stars":"★★☆☆☆","delta":"up","marks":["wind_coarse","undercut"],"wx":{"glyph":"🌦️","label":{"nl":"motregen","en":"drizzle","de":"Nieselregen"}},"air_c":10.7,"precip_pct":76,"single_model":false,"runs":{"fun":null,"good":null,"prime":null}},{"date":"2026-10-24","score":0.5,"band":{"key":"flat","colour":"grey"},"best_time":"13:00","wave_m":1.54,"period_s":6.7,"wave_dir":"WSW","wind_kn":16.0,"wind_dir":"SW","wind_relation":"onshore","confidence":"low","stars":"☆☆☆☆☆","delta":"down","marks":["wind_coarse"],"wx":{"glyph":"🌦️","label":{"nl":"motregen","en":"drizzle","de":"Nieselregen"}},"air_c":10.3,"precip_pct":67,"single_model":false,"runs":{"fun":null,"good":null,"prime":null}},{"date":"2026-10-25","score":1.9,"band":{"key":"flat","colour":"grey"},"best_time":"18:00","wave_m":0.86,"period_s":5.9,"wave_dir":"NNW","wind_kn":10.7,"wind_dir":"SW","wind_relation":"cross","confidence":null,"stars":"★☆☆☆☆","delta":"up","marks":["longrange","wind_coarse"],"wx":{"glyph":"☁️","label":{"nl":"bewolkt","en":"overcast","de":"bedeckt"}},"air_c":11.5,"precip_pct":65,"single_model":true,"runs":{"fun":null,"good":null,"prime":null}},{"date":"2026-10-26","score":3.8,"band":{"key":"marginal","colour":"orange"},"best_time":"18:00","wave_m":1.46,"period_s":6.9,"wave_dir":"WSW","wind_kn":11.8,"wind_dir":"S","wind_relation":"cross","confidence":null,"stars":"★★☆☆☆","delta":"up","marks":["longrange","wind_coarse"],"wx":{"glyph":"☁️","label":{"nl":"bewolkt","en":"overcast","de":"bedeckt"}},"air_c":11.4,"precip_pct":38,"single_model":true,"runs":{"fun":null,"good":null,"prime":null}},{"date":"2026-10-27","score":3.1,"band":{"key":"marginal","colour":"orange"},"best_time":"09:00","wave_m":1.06,"period_s":5.5,"wave_dir":"W","wind_kn":13.9,"wind_dir":"S","wind_relation":"cross","confidence":null,"stars":"★★☆☆☆","delta":null,"marks":["longrange","wind_coarse"],"wx":{"glyph":"🌦️","label":{"nl":"motregen","en":"drizzle","de":"Nieselregen"}},"air_c":11.8,"precip_pct":29,"single_model":true,"runs":{"fun":null,"good":null,"prime":null}}],"outlook_legend":[{"key":"wind_coarse","glyph":"°","nl":"wind nog onzeker","en":"wind still uncertain","de":"Wind noch unsicher"},{"key":"undercut","glyph":"⇣","nl":"kan kleiner uitvallen","en":"may come in smaller","de":"kann kleiner ausfallen"},{"key":"longrange","glyph":"≈","nl":"nog ver weg, onzeker","en":"still far off, uncertain","de":"noch weit weg, unsicher"}],"best_day":{"index":0,"date":"2026-10-18","score":6.3,"marks":[],"nl":"Beste dag","en":"Best day","de":"Bester Tag"},"week":{"nl":"Zondag springt eruit: 6.3/10, 2,5 punt meer dan elke andere dag. Vooral westelijke swell, en die komt hier goed binnen. Vanaf zondag 25 oktober is de verwachting nog onzeker.","en":"There's one clear day in it: Sunday, 0.9 m around 18:00. Mostly westerly swell, which this beach picks up well. From Sunday 25 Oct onwards, the forecast is still uncertain.","de":"Ein Tag sticht klar heraus: Sonntag, mit 0,9 m gegen 18:00. Meist Swell aus Westen, und der kommt hier gut an. Ab Sonntag, 25. Oktober, ist die Vorhersage noch unsicher.","alinea":{"nl":["Zondag springt eruit: 6.3/10, 2,5 punt meer dan elke andere dag.","Vooral westelijke swell, en die komt hier goed binnen.","Vanaf zondag 25 oktober is de verwachting nog onzeker."],"en":["There's one clear day in it: Sunday, 0.9 m around 18:00.","Mostly westerly swell, which this beach picks up well.","From Sunday 25 Oct onwards, the forecast is still uncertain."],"de":["Ein Tag sticht klar heraus: Sonntag, mit 0,9 m gegen 18:00.","Meist Swell aus Westen, und der kommt hier gut an.","Ab Sonntag, 25. Oktober, ist die Vorhersage noch unsicher."]},"alinea_nl":["Zondag springt eruit: 6.3/10, 2,5 punt meer dan elke andere dag.","Vooral westelijke swell, en die komt hier goed binnen.","Vanaf zondag 25 oktober is de verwachting nog onzeker."],"alinea_en":["There's one clear day in it: Sunday, 0.9 m around 18:00.","Mostly westerly swell, which this beach picks up well.","From Sunday 25 Oct onwards, the forecast is still uncertain."]},"bands":[{"key":"flat","min":0.0,"max":2.5,"colour":"grey"},{"key":"marginal","min":2.5,"max":4.0,"colour":"orange"},{"key":"fun","min":4.0,"max":5.5,"colour":"amber"},{"key":"good","min":5.5,"max":7.0,"colour":"green"},{"key":"prime","min":7.0,"max":10.0,"colour":"green"}],"caveats":{"period":"Periode in Tm-1,0 (~0,87x de Tp die andere surfsites tonen).","period_en":"Period is Tm-1,0 (~0.87x the Tp other surf forecasts quote).","period_de":"Periode in Tm-1,0 (~0,87x der Tp, die andere Surfseiten zeigen).","wind":"Windsnelheid is een modelwaarde; aan de kust wordt doorgaans ~1,45x meer gemeten.","wind_en":"Wind is a model-cell value; the coast typically measures ~1.45x higher.","wind_de":"Windgeschwindigkeit ist ein Modellwert; an der Küste wird meist ~1,45x mehr gemessen.","outlook":"Voorbij ~5 dagen leunt de verwachting op een enkel model.","outlook_en":"Beyond ~5 days the outlook rests on a single model.","outlook_de":"Jenseits von ~5 Tagen stützt sich die Vorhersage auf ein einziges Modell.","score":"Het cijfer beoordeelt de condities, niet jouw sessie.","score_en":"The score rates the conditions, not your session.","score_de":"Die Note bewertet die Bedingungen, nicht deine Session."},"crests":{"date":"2026-09-06","age_days":41,"missed":11,"method":"foam","source":"Sentinel-2 (Copernicus)","note":"Gebaseerd op satellietbeelden van 6 september.","note_en":"Based on satellite imagery from 6 September.","note_de":"Basierend auf Satellitenbildern vom 6. September.","bron":"satellietbeelden van 6 september","bron_en":"satellite imagery from 6 September","bron_de":"Satellitenbildern vom 6. September","lines":[{"label":"inner","dist_m":28,"points":[[52.37197,4.52023],[52.37179,4.52023],[52.37161,4.52023],[52.37143,4.52009],[52.37125,4.52009],[52.37107,4.51994],[52.37089,4.51964],[52.37071,4.51979],[52.37053,4.51964]]},{"label":"inner","dist_m":19,"points":[[52.37,4.51935],[52.36982,4.51935],[52.36964,4.51906],[52.36946,4.51891],[52.36919,4.51876],[52.36883,4.51847],[52.36865,4.51832],[52.36847,4.51832],[52.36829,4.51817],[52.36811,4.51802],[52.36793,4.51788],[52.36775,4.51773],[52.36739,4.51729]]}]},"drone":{"date":"2026-10-07","age_days":10,"source":"Drone","note":"Gebaseerd op luchtfoto's van 7 oktober.","note_en":"Based on aerial photographs from 7 October.","note_de":"Basierend auf Luftbildern vom 7. Oktober.","bron":"luchtfoto's van 7 oktober","bron_en":"aerial photographs from 7 October","bron_de":"Luftbildern vom 7. Oktober","lines":[{"label":"inner","dist_m":40,"points":[[52.38527,4.52925],[52.38547,4.5294],[52.38567,4.52956]]},{"label":"inner","dist_m":42,"points":[[52.37659,4.5232],[52.37679,4.52335],[52.37699,4.52352],[52.3772,4.52367],[52.3774,4.52382],[52.3776,4.52401],[52.37781,4.52415],[52.37801,4.5243],[52.37823,4.5244],[52.37843,4.52458],[52.37862,4.52477],[52.37883,4.52489],[52.37903,4.52506],[52.37926,4.52514],[52.37946,4.52531],[52.37966,4.52549],[52.37985,4.52567],[52.38006,4.5258],[52.38045,4.52619],[52.38067,4.5263],[52.38087,4.52644],[52.38113,4.52638]]},{"label":"outer","dist_m":82,"points":[[52.37925,4.52419],[52.37944,4.52439],[52.37965,4.52454],[52.37984,4.52474],[52.38001,4.52502],[52.38021,4.52522],[52.38039,4.52545],[52.3806,4.52559],[52.38098,4.52603],[52.38122,4.52603],[52.38162,4.52637],[52.38182,4.52654],[52.38203,4.52666],[52.38225,4.52674],[52.38247,4.52686],[52.38268,4.52697],[52.3829,4.52705],[52.38312,4.52715],[52.38332,4.52731],[52.38376,4.52749],[52.38421,4.52763],[52.38441,4.52781],[52.38463,4.52791],[52.38482,4.5281]]},{"label":"outer","dist_m":108,"points":[[52.38319,4.52686],[52.38341,4.52696],[52.38363,4.52705],[52.38386,4.5271]]}]},"health":{"degraded":[],"ok":true},"sources":{"report":{"at":"2026-10-18T05:35","next_at":"2026-10-18T06:35"},"forecast":{"at":"2026-10-18T03:35:21Z"},"buoy":{"at":"2026-10-18T03:00:00Z","station":"IJgeul"},"crests":{"at":"2026-09-06","age_days":41},"drone":{"at":"2026-10-07","age_days":10}},"prose_mode":"slots"}