Surf Forecasts:
Les Dunes surf forecast from 6 Aug 2026:
- Best quality surf: Thursday 13 Aug, 11AM (local time) - 2.5ft (0.7m), 9s period, W swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 5PM (local time) - 2.5ft (0.8m), 11s period, W swell with 146 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 11AM (local time) - 2.5ft (0.7m), 9s period with W swell.
Best Forecast Surf Conditions for Les Dunes this week:
The surf forecast for Les Dunes over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 11AM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.3m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Les Dunes in the next 16 days are 0.8m 11s and forecast to arrive on Thursday (Aug 13) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Friday (Aug 07) at 8PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Thu 13th Aug) | 2.5ft (0.7m) 9s |
| Best Surf | 11AM (Thu 13th Aug) | 2.5ft (0.7m) 9s |
| Most Powerful | 5PM (Thu 13th Aug) | 2.5ft (0.8m) 11s |
Table - best surf conditions forecast for Les Dunes over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on offer.
To be straight with you, the next couple of weeks are looking pretty flat and quiet for the most part. There’s nothing that’s going to get the heart racing, and the first real chance of anything remotely surfable doesn’t show up until Thursday the 13th of August. Even then, it’s not going to be anything special.
The water temp at Les Dunes is sitting at 70°, which is about 1° warmer than average for this time of year – nothing unusual, just a touch on the warm side.
The only half-decent window starts on the morning of Thursday the 13th. We’ve got a tiny 2 ft swell from the west, with a period of 9 seconds. The combined energy is 105 (moderate), but the real story is the light NNE cross-offshore breeze, which will keep the surface clean. It’s surfable, but very ordinary. The next morning, Friday the 14th, is similar – a 2 ft west swell, 9 seconds, with glassy conditions from a light NE breeze. That’s about as good as it gets.
Then on Tuesday the 18th, we get another morning of glassy conditions with a 2 ft west swell, 9 seconds, and energy of 79 (weak). Again, it’s surfable but nothing to write home about.
For the rest of the period, it’s a mix of tiny swell, poor winds, and choppy conditions. The afternoons are pretty much a write-off with onshore winds. There’s a long stretch from now until the 13th with no real surf recommendations, and then another gap after the 18th.
The best tip? If you're desperate for a wave, the mornings of the 13th, 14th, and 18th of August are your best bet for a clean, small wave at Les Dunes. Don’t expect much, but you might get a few fun ones if you’re patient.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Sun morning. Warm (max 30°C on Sat afternoon, min 16°C on Thu night). Winds decreasing (fresh winds from the NW on Thu night, calm by Sun morning). | Days 5-7 Weather SummarySome drizzle, heaviest during Sun afternoon. Warm (max 26°C on Tue afternoon, min 20°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
PM | 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) | WNW 4 | NW 5 | WNW 6 | W 9 | W 9 | W 9 | W 9 | WNW 10 | WNW 10 | WNW 9 | W 7 | WNW 9 | WSW 7 | WNW 8 | WNW 8 | WNW 8 | W 10 | W 11 | W 10 | W 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 23 | 23 | 14 | 7 | 7 | 7 | 2 | 10 | 18 | 17 | 8 | 16 | 15 | 14 | 13 | 13 | 7 | 37 | 69 | 76 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | off | off | cross | off | cross-off | cross-on | glassy | cross-on | cross-on | cross-on | cross | cross-on | cross-off | glassy | cross-on | cross | cross-on | cross-on | cross |
High Tide | 10:45PM3.43m | 11:29AM3.32m | 00:24AM3.28m | 1:18PM3.35m | 2:12AM3.37m | 2:46PM3.59m | 3:27AM3.62m | 3:51PM3.93m | 4:24AM3.90m | 4:43PM4.27m | 5:13AM4.13m | 5:29PM4.52m | ||||||||
Low Tide | 4:56PM0.94m | 5:30AM1.01m | 6:06PM1.05m | 6:43AM1.10m | 7:25PM1.00m | 8:00AM1.00m | 8:40PM0.77m | 9:08AM0.75m | 9:45PM0.44m | 10:06AM0.44m | 10:39PM0.11m | 10:57AM0.14m | 11:27PM-0.14m | |||||||
 |  | | | |  | |  |  | | | | | | | | | | | | |
 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — |
 | — | 9:31 | — | — | 9:30 | — | — | 9:29 | — | — | 9:27 | — | — | 9:25 | — | — | 9:23 | — | — | 9:22 |
mm | — | — | — | — | — | — | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 21 | 27 | 28 | 27 | 30 | 27 | 21 | 22 | 21 | 21 | 22 | 21 | 24 | 26 | 24 | 25 | 27 | 24 |
Feels °C | 17 | 15 | 16 | 22 | 22 | 22 | 26 | 22 | 20 | 21 | 19 | 19 | 19 | 18 | 23 | 23 | 22 | 23 | 24 | 21 |
Swell 1 Height (m) Direction Period (s) | W 10 | NW 5 | WNW 6 | W 9 | NW 4 | NW 5 | W 9 | NW 3 | W 3 | WNW 9 | W 4 | W 5 | WNW 9 | WSW 7 | NW 5 | WNW 8 | WNW 8 | W 11 | W 10 | W 9 |
| kJ | 8 | 23 | 14 | 7 | 6 | 1 | 2 | 1 | 3 | 17 | 8 | 11 | 15 | 9 | 6 | 13 | 6 | 37 | 69 | 76 |
Swell 2 Height (m) Direction Period (s) | — | W 10 | W 10 | — | W 9 | W 9 | NW 5 | WNW 10 | WNW 10 | W 6 | W 7 | WNW 9 | WNW 5 | WNW 8 | WSW 7 | WSW 6 | WSW 6 | WNW 7 | W 6 | — |
| kJ | — | 8 | 7 | — | 7 | 7 | 1 | 10 | 18 | 3 | 8 | 16 | 2 | 14 | 9 | 4 | 4 | 5 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | W 7 | — | — | — | — | — | W 7 | W 6 | W 7 | WNW 9 | WSW 6 | — | W 11 | WNW 8 | WNW 4 | W 10 | W 6 | — | — |
| kJ | — | 1 | — | — | — | — | — | 1 | 3 | 1 | 8 | 8 | — | 2 | 13 | 2 | 7 | 3 | — | — |
Wind waves Height (m) Direction Period (s) | WNW 4 | NNE 4 | NE 3 | NW 3 | NNE 3 | E 3 | — | — | — | W 4 | — | — | WSW 7 | NW 4 | — | — | NW 3 | — | NW 3 | NW 4 |
| kJ | 23 | 11 | 5 | 4 | 7 | 1 | — | — | — | 4 | — | — | 15 | 4 | — | — | 1 | — | 2 | 7 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 355 | 283 | 151 | 706 | 360 | 261 | 237 | 226 | 226 | 388 | 151 | 180 | 355 | 218 | 226 | 388 | 226 | 144 | 293 | 9 |
Best forecast wave conditions in Vendee | ||||||||||||||||||||
Best forecast wave conditions in France | ||||||||||||||||||||
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Information about the Les Dunes Surf forecast
The above surf forecast table for Les Dunes provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Les Dunes can be found by selecting the local surf guide option on the grey menu. Our Les Dunes 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 (Les Dunes) 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 Les Dunes 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.
Les Dunes is 8 km (5 miles) from Les Sables-d'Olonne. If you plan a holiday in Vendee, look for hotels and other accommodation in Les Sables-d'Olonne. Les Sables-d'Olonne has rooms for a wide range of budgets as well as car hire and transport links.
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