Surf Forecasts:
Les Dunes surf forecast from 7 Aug 2026:
- Best quality surf: Thursday 13 Aug, 8AM (local time) - 2ft (0.6m), 9s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 14 Aug, 5AM (local time) - 2.5ft (0.8m), 10s period, W swell with 123 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 8AM (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 8AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.4m and 4s. 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 10s and forecast to arrive on Friday (Aug 14) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Friday (Aug 14) at 8AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 13th Aug) | 2ft (0.6m) 9s |
| Best Surf | 8AM (Thu 13th Aug) | 2ft (0.6m) 9s |
| Most Powerful | 5AM (Fri 14th Aug) | 2.5ft (0.8m) 10s |
Table - best surf conditions forecast for Les Dunes over the next 16 days.
The Lowdown
Alright, this is Rusty. Let me break it down for you.
Honestly, looking at the next couple of weeks for Les Dunes, it’s a pretty grim run. I wouldn't bother paddling out for most of it. There’s a solid stretch of nothingness from now until around the 20th of August, so you’re looking at a long wait.
The whole period starts off flat and sloppy. On the morning of the 21st of August, things finally get interesting. The swell jumps up to about 4 ft from the west with a period of 8 seconds. There’s a combined energy of 205 in the water there, which has some guts to it. The wind is glassy from the ESE at just 3 mph, so it’ll be clean. Now, for an exposed beach break like Les Dunes, that much water moving around might be more than the sandbars can handle, so it could be a bit of a washing machine. It might actually be better for kite surfing than paddle surfing with that amount of swell. It’s the only day in the whole 16-day window that comes close to being decent, but don’t get too emotional about it; it’s a one-off window in a very quiet period.
Before that, there’s a few mornings like the 13th and 14th of August where you’re looking at 2 ft from the west, with light offshore breezes. It’s surfable, but nothing to write home about - you might get a few ankle-to-knee high ones if you’re desperate for a paddle. The water temperature is sitting around 69°, which is about average for the time of year.
So honestly, take it easy. The forecast is pretty locked in for this quiet spell, but things can always change. The only real standout is that one morning on the 21st, and even then, it’s a gamble with the size. Don’t plan a trip around it.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sat afternoon, min 19°C on Sun morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 31°C on Wed afternoon, min 21°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||
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) | W 9 | W 9 | W 9 | WNW 10 | WNW 10 | WNW 9 | WSW 7 | WSW 7 | WSW 7 | WNW 8 | WSW 7 | WNW 8 | WNW 10 | W 11 | W 10 | W 9 | W 9 | W 9 | W 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 7 | 7 | 2 | 10 | 18 | 17 | 10 | 16 | 16 | 14 | 9 | 13 | 18 | 38 | 49 | 58 | 78 | 81 | 61 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-on | on | glassy | cross-on | cross-off | glassy | on | off | cross | cross-on | cross-off | cross | cross | cross-off | cross | cross | cross-off |
High Tide | 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 | 5:56AM4.28m | 6:11PM4.66m | |||||||
Low Tide | 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 | 11:42AM-0.07m | 00:11AM-0.26m | |||||||
 |  | |  | | |  | | | | | | | | | | | | | |
 | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — |
 | 9:30 | — | — | 9:29 | — | — | 9:27 | — | — | 9:25 | — | — | 9:23 | — | — | 9:22 | — | — | 9:21 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 28 | 25 | 22 | 23 | 22 | 24 | 27 | 25 | 25 | 27 | 27 | 29 | 31 | 27 | 28 | 30 | 27 |
Feels °C | 21 | 21 | 23 | 21 | 23 | 21 | 19 | 23 | 25 | 23 | 25 | 26 | 25 | 25 | 27 | 24 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | NW 4 | W 9 | W 9 | NW 3 | NW 3 | WNW 9 | WSW 7 | NW 5 | WSW 7 | NW 4 | NW 5 | WNW 8 | WNW 10 | W 11 | W 10 | W 9 | W 9 | W 9 | W 9 |
| kJ | 5 | 7 | 2 | 1 | 1 | 17 | 10 | 8 | 16 | 9 | 6 | 13 | 18 | 38 | 49 | 58 | 78 | 81 | 61 |
Swell 2 Height (m) Direction Period (s) | W 9 | — | — | WNW 10 | WNW 10 | W 6 | WNW 9 | WSW 7 | WNW 9 | WSW 7 | WSW 7 | WSW 6 | WSW 6 | WNW 8 | W 6 | W 5 | NW 4 | W 12 | WNW 4 |
| kJ | 7 | — | — | 10 | 18 | 3 | 8 | 16 | 16 | 10 | 9 | 4 | 4 | 6 | 1 | 1 | 5 | 12 | 7 |
Swell 3 Height (m) Direction Period (s) | NW 6 | NW 6 | NW 6 | W 7 | W 6 | — | — | WNW 9 | NW 4 | WNW 8 | WNW 8 | W 10 | — | W 6 | — | — | — | — | WNW 11 |
| kJ | 1 | 1 | 1 | 1 | 1 | — | — | 16 | 7 | 14 | 7 | 8 | — | 3 | — | — | — | — | 24 |
Wind waves Height (m) Direction Period (s) | — | ESE 3 | — | — | — | WNW 3 | NW 4 | — | NW 3 | — | — | — | — | — | — | NW 3 | — | NW 4 | N 3 |
| kJ | — | 1 | — | — | — | 2 | 7 | — | 3 | — | — | — | — | — | — | 5 | — | 11 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 818 | 274 | 237 | 180 | 151 | 553 | 226 | 3 | 226 | 151 | 218 | 388 | 237 | 136 | 293 | 3 | 9 | 430 | 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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