Surf Forecasts:
Les Dunes surf forecast from 11 Aug 2026:
- Best quality surf: Thursday 13 Aug, 2AM (local time) - 2ft (0.6m), 9s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 14 Aug, 5PM (local time) - 4.5ft (1.3m), 9s period, WNW swell with 255 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 2AM (local time) - 2ft (0.6m), 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 2AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.1m and 5s. 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 1.3m 9s and forecast to arrive on Friday (Aug 14) 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 1.0m 4s period and expected on Saturday (Aug 15) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 13th Aug) | 2ft (0.6m) 9s |
| Best Surf | 2AM (Thu 13th Aug) | 2ft (0.6m) 9s |
| Most Powerful | 5PM (Fri 14th Aug) | 4.5ft (1.3m) 9s |
Table - best surf conditions forecast for Les Dunes over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let's be real, the surf outlook for this stretch is pretty bleak. It's a long stretch of small, junky waves. You're gonna have to be a patient one to find anything worth paddling out for.
Water's sitting about 68°F, which is pretty normal for this time of year.
Scoping out the whole 16-day run, the first sliver of hope comes on the early morning of Friday, August 14th. We get a light offshore breeze from the north, which will actually make things clean, but the swell is tiny, just 2 feet at 10 seconds from the west. The energy is weak. It's surfable, but you'll be scratching around for anything with a bit of shape. Definitely not a day for waves of consequence.
The window closes fast, and the weekend turns messy with more onshore wind. The next morning, Saturday the 15th, looks similar with a light offshore wind, but the swell is still only 3 feet and weak. Another one for the small-wave gear.
Then the bottom falls out. From Sunday the 16th right through to Friday the 21st, it’s a flat, wind-blown mess. There's just no swell energy at all. A good time to swap fins and fix your wax.
The long-range charts are showing a pulse of real energy arriving on Sunday, August 23rd, with a 5-foot west swell. But, the wind is slated to be onshore from the southwest, which will chop it all up. The energy is strong, but the quality will be poor. It’s going to be a lumpy, bumpy beast of a beach break. Too big for beginners and messy for everyone else.
The next day, Monday the 24th, keeps the size around 5 feet, but the wind rages from the west-northwest, making a clean wave nearly impossible. This looks far more interesting for the kite surfers than us paddle surfers.
So, there you have it. No real highlights in this one. Your best bets are those two clean, but tiny, mornings on Friday the 14th and Saturday the 15th. For the rest, we’re just hoping for a change in the weather pattern.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Tue afternoon, min 21°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Sun afternoon. Warm (max 28°C on Fri afternoon, min 16°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
AM | 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) | WSW 7 | WNW 8 | W 10 | W 11 | W 10 | W 9 | W 9 | W 10 | W 10 | W 10 | WNW 9 | WNW 6 | WNW 8 | WNW 8 | W 8 | NW 8 | NW 8 | NW 5 | NW 5 | WNW 4 | WNW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 9 | 6 | 7 | 38 | 49 | 61 | 87 | 122 | 125 | 89 | 255 | 70 | 117 | 140 | 46 | 59 | 69 | 35 | 36 | 30 | 67 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | glassy | cross-on | cross-on | cross-off | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off |
High Tide | 4:43PM4.27m | 5:13AM4.13m | 5:29PM4.52m | 5:56AM4.28m | 6:11PM4.66m | 6:35AM4.32m | 6:50PM4.66m | 7:12AM4.27m | 7:26PM4.52m | 7:46AM4.13m | 8:00PM4.27m | 8:17AM3.93m | 8:32PM3.95m | ||||||||
Low Tide | 10:06AM0.44m | 10:39PM0.11m | 10:57AM0.14m | 11:27PM-0.14m | 11:42AM-0.07m | 00:11AM-0.26m | 12:25PM-0.16m | 00:53AM-0.25m | 1:07PM-0.13m | 1:33AM-0.11m | 1:48PM0.03m | 2:13AM0.14m | 2:29PM0.29m | 2:53AM0.46m | |||||||
 | |  | | | | | | | | |  |  |  | | |  | | | | | |
 | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:07 | — | — |
 | — | — | 9:23 | — | — | 9:22 | — | — | 9:21 | — | — | 9:19 | — | — | 9:17 | — | — | 9:15 | — | — | 9:14 |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 2 | — | 3 | 2 | — | — | — |
Temp °C | 29 | 30 | 28 | 27 | 29 | 27 | 27 | 28 | 27 | 25 | 28 | 23 | 20 | 26 | 23 | 22 | 25 | 21 | 19 | 21 | 21 |
Feels °C | 26 | 27 | 26 | 26 | 27 | 25 | 25 | 24 | 23 | 24 | 26 | 20 | 20 | 23 | 19 | 20 | 23 | 17 | 16 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WNW 8 | WNW 8 | W 11 | W 10 | W 9 | W 9 | W 10 | W 10 | W 10 | W 9 | WNW 6 | WNW 8 | — | NW 5 | NW 8 | — | WNW 8 | — | W 11 | WNW 10 |
| kJ | 9 | 6 | 6 | 38 | 49 | 61 | 87 | 122 | 125 | 89 | 83 | 70 | 117 | — | 19 | 59 | — | 6 | — | 2 | 9 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | WSW 7 | WSW 6 | WNW 8 | W 6 | W 5 | — | — | — | — | — | W 9 | — | — | W 8 | — | — | W 8 | — | — | W 8 |
| kJ | 7 | 4 | 4 | 6 | 1 | 1 | — | — | — | — | — | 39 | — | — | 46 | — | — | 5 | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | WNW 5 | NW 5 | W 10 | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 1 | 7 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 3 | — | NW 3 | — | NW 2 | NW 3 | WNW 3 | NW 3 | NW 4 | NW 5 | WNW 9 | NNE 4 | — | WNW 8 | NNE 4 | ENE 3 | NW 8 | NW 5 | NW 5 | WNW 4 | WNW 5 |
| kJ | 1 | — | 1 | — | 1 | 3 | 1 | 6 | 15 | 20 | 255 | 7 | — | 140 | 15 | 1 | 69 | 35 | 36 | 30 | 67 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 255 | 388 | 153 | 70 | 237 | 0 | 9 | 22 | 6 | 0 | 293 | 51 | 0 | 22 | 9 | 9 | 388 | 355 | 451 | 353 | 172 |
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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