Surf Forecasts:
Blokken surf forecast from 17 Aug 2026:
- Best quality surf: Sunday 23 Aug, 8AM (local time) - 2.5ft (0.7m), 7s period, NNW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 11AM (local time) - 4.5ft (1.4m), 6s period, WSW swell with 126 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 8AM (local time) - 2.5ft (0.7m), 7s period with NNW swell.
Best Forecast Surf Conditions for Blokken this week:
The surf forecast for Blokken over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 8AM. The primary swell is predicted to be 0.7m and 7s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Blokken in the next 16 days are 1.4m 6s and forecast to arrive on Thursday (Aug 20) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Monday (Aug 24) at 2AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 23rd Aug) | 2.5ft (0.7m) 7s |
| Best Surf | 8AM (Sun 23rd Aug) | 2.5ft (0.7m) 7s |
| Most Powerful | 11AM (Thu 20th Aug) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Blokken over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's on offer for the coming weeks at Blokken.
Alright mate, I gotta be straight with you – the next week and a half is going to be a tough slog. We've got a long stretch of real poor conditions, with a few small windows where you might get wet, but don't expect anything special. The first real highlight doesn't show up until Tuesday the 25th of August, and even that one comes with a big caveat.
Right now, through the end of this week and into the weekend, it's all messy. We've got onshore winds, rain showers, and a bumpy, choppy ocean. The swell is tiny and weak, under 3 feet, with combined wave energy barely getting into double digits (10 to 60), so don't bother paddling out unless you just want to sit on a board and get rained on.
The first thing that even gets close to noteworthy is the morning of Monday the 24th. The wind swings light cross-offshore from the SSW, and the surface cleans right up. The swell is still tiny though, a weak 1.6 ft from the north with a period of just 5 seconds combined energy of 13, so it's really just a gentle, clean bump. Not a real session, but maybe a quiet morning paddle.
Now, the one that could be a proper stand-out – if you're an expert – is Tuesday the 25th of August. The morning shows a solid 7.9 ft swell from the north with a 7-second period. That's a big step up, and the combined wave energy is serious at 585. But listen, that's heavy. At 7.9 ft it's strictly for experienced surfers, and it's coming in with a moderate cross-shore wind that will throw some lumpy cross-chop onto it. It's not going to be glassy, but there's real power there if you've got the skill to handle it. After that, the wind swings cross-onshore and the size drops, making it messy again. So that Tuesday morning window is your best bet in the whole 16-day outlook, but it's only for the confident crew.
Overall, the next couple of weeks look pretty poor for quality surfing. There's a lot of wind and rain, and the few bits of clean swell are tiny. The only real energy we see is that bigger, lumpy north swell on the 25th. Don't hold your breath for anything else.
Short Range ForecastModerate rain (total 16mm), heaviest on Sun night. Warm (max 21°C on Tue night, min 16°C on Sun night). Winds increasing (calm on Sun night, fresh winds from the WSW by Wed morning). | Days 5-7 Weather SummaryModerate rain (total 19mm), heaviest on Thu morning. Warm (max 20°C on Wed night, min 16°C on Fri night). Winds decreasing (strong winds from the SW on Wed night, light winds from the NW by Sat afternoon). | ||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||
Wave Height (m) Direction Period (s) | NNW 5 | NNW 6 | NNW 4 | NNW 5 | W 4 | W 5 | N 7 | NNW 5 | WSW 4 | W 5 | WSW 6 | W 5 | WSW 6 | NNW 6 | NNW 9 | NNW 5 | NNW 6 | NNW 7 | NNW 7 |
Wave Graph | |||||||||||||||||||
5 | 10 | 9 | 7 | 29 | 49 | 8 | 17 | 24 | 49 | 126 | 57 | 40 | 19 | 101 | 46 | 59 | 69 | 73 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | on | cross | cross-on | cross-on | on | cross-on | cross-on | cross | cross | cross | cross | on | on | on | on | cross-on | cross-on |
High Tide | 1:12AM0.47m | 6:15AM2.86m | 6:35PM2.70m | 2:00AM0.46m | 6:58AM2.71m | 2:22PM0.81m | 2:58AM0.47m | 7:43AM2.53m | 3:32PM0.75m | 8:02PM2.50m | 8:30AM2.33m | 8:55PM2.32m | 9:26AM2.12m | 10:02PM2.11m | 10:34AM1.93m | 11:41PM2.00m | |||
Low Tide | 11:33PM0.22m | 11:48AM0.65m | 2:52PM0.70m | 00:18AM0.25m | 12:34PM0.62m | 3:38PM0.72m | 1:05AM0.29m | 1:25PM0.59m | 4:15PM0.74m | 1:57AM0.37m | 2:26PM0.60m | 3:00AM0.48m | 4:09PM0.62m | 4:57AM0.57m | 5:31PM0.60m | ||||
— | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | |
9:06 | — | — | 9:04 | — | — | 9:01 | — | — | 9:00 | — | 8:58 | — | — | 8:55 | — | — | 8:53 | — | |
mm | 4 | 4 | — | — | 2 | — | 1 | 2 | 3 | 3 | 3 | 3 | 6 | 2 | 2 | — | — | — | — |
Temp °C | 19 | 17 | 17 | 17 | 18 | 19 | 21 | 18 | 19 | 20 | 18 | 19 | 19 | 17 | 17 | 17 | 16 | 16 | 16 |
Feels °C | 19 | 15 | 14 | 14 | 13 | 15 | 19 | 12 | 14 | 14 | 12 | 13 | 13 | 13 | 11 | 12 | 11 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | NNW 5 | — | — | NNW 5 | N 5 | N 7 | WSW 4 | NNW 5 | NNW 5 | NNW 6 | NNW 5 | N 7 | WSW 6 | NNW 6 | WSW 4 | — | NNW 6 | NNW 7 | NNW 7 |
5 | — | — | 7 | 4 | 9 | 6 | 17 | 15 | 13 | 3 | 4 | 40 | 19 | 4 | — | 59 | 69 | 73 | |
Swell 2 Height (m) Direction Period (s) | N 7 | — | — | N 8 | N 8 | N 5 | NW 5 | — | — | N 7 | N 7 | — | NW 5 | WSW 5 | — | — | — | — | — |
4 | — | — | 1 | 5 | 2 | 8 | — | — | 1 | 4 | — | 6 | 10 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | N 7 | — | — | — | — | — | N 7 | N 8 | — | — | — | — | — |
— | — | — | — | — | — | 8 | — | — | — | — | — | 4 | 6 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | NNW 6 | NNW 4 | — | W 4 | W 5 | — | WSW 5 | WSW 4 | W 5 | WSW 6 | W 5 | — | — | NNW 9 | NNW 5 | — | — | NE 2 |
— | 10 | 9 | — | 29 | 49 | — | 6 | 24 | 49 | 126 | 57 | — | — | 101 | 46 | — | — | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 704 | 735 | 737 | 652 | 738 | 589 | 737 | 738 | 782 | 652 | 736 | 414 | 652 | 500 | 393 | 189 | 292 | 179 | 2 |
Best forecast wave conditions in Netherlands | |||||||||||||||||||
Best forecast wave conditions in Netherlands | |||||||||||||||||||
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Information about the Blokken Surf forecast
The above surf forecast table for Blokken provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Blokken can be found by selecting the local surf guide option on the grey menu. Our Blokken surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Blokken) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Blokken may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Blokken is 10 km (6 miles) from Hoek Van Holland. If you plan a holiday in Netherlands, look for hotels and other accommodation in Hoek Van Holland. Hoek Van Holland has rooms for a wide range of budgets as well as car hire and transport links.











