Surf Forecasts:
Les Dunes surf forecast from 13 Aug 2026:
- Best quality surf: Friday 14 Aug, 2AM (local time) - 2.5ft (0.8m), 10s period, W swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 8PM (local time) - 4.5ft (1.3m), 10s period, WNW swell with 312 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 2AM (local time) - 2.5ft (0.8m), 10s 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 Friday (Aug 14) at 2AM. The primary swell is predicted to be 0.8m and 10s period. 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 10s and forecast to arrive on Thursday (Aug 20) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Aug 13) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 14th Aug) | 2.5ft (0.8m) 10s |
| Best Surf | 2AM (Fri 14th Aug) | 2.5ft (0.8m) 10s |
| Most Powerful | 8PM (Thu 20th Aug) | 4.5ft (1.3m) 10s |
Table - best surf conditions forecast for Les Dunes over the next 16 days.
The Lowdown
Alright folks, let me break down what’s headed for Les Dunes. It’s a slow burn, no doubt about it. The first session worth mentionin’ is Thursday the 13th of August. We got tiny 2ft swell from the west, period around 9 seconds, and a light cross-off breeze keepin’ it clean. The energy is weak though, just 88. It’s surfable for the beginners, but pretty ordinary. Water temp is about 69°F, which is normal for this time, so no surprises there.
Friday sees similar small waves, 2ft, but the afternoon brings thunderstorms and choppy winds – forget it. Saturday the 15th morning is the best of the early run. A light offshore from the north-northeast and the swell edges up to 3ft from the west-northwest, period 8 seconds. Energy is moderate at 108, and with clean faces, this is your best bet for a mellow session. Still small, but it’ll be fun.
Then we hit a long dry spell. From Sunday the 16th all the way through to Saturday the 22nd, it’s mostly flat. We see waves as small as 1ft, poor wind, and no energy. A few mornings are clean, but there’s no push. Not worth the paddle.
Now, keep your eyes on Monday the 24th of August. That morning we get a serious pulse – 7ft swell from the west with a 9-second period. The energy jumps to 685, and we got a light offshore from the north keepin’ it clean. That’s the big one, but it’s for experts only. At 7ft, this break gets too powerful for most. By afternoon it’s forecasted at 8ft with energy over 1396 and onshore wind – messy and too big. The morning window is the only one for the experienced crew.
After that, it fades. Tuesday the 25th is rainy and onshore, Wednesday the 26th has a clean offshore but small, short-period waves. Not worth the hassle. The end of the month shows more swell but with poor wind.
So, bottom line – beginners, hit Saturday the 15th morning. Experts, you gotta be ready for Monday the 24th morning. The rest is pretty lackluster, but that’s how it goes. Keep watchin’ the charts.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Warm (max 32°C on Thu afternoon, min 18°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Sun afternoon, min 17°C on Mon morning). Mainly fresh winds. | |||||||||||||||||||
Thu 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||
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) | W 10 | W 10 | W 10 | W 9 | WNW 6 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | NW 7 | WNW 4 | WNW 6 | WNW 5 | WNW 7 | WNW 8 | W 8 | W 7 | WNW 5 |
Wave Graph  | ||||||||||||||||||||
 kJ | 122 | 125 | 89 | 60 | 59 | 108 | 128 | 89 | 83 | 72 | 18 | 55 | 18 | 49 | 15 | 10 | 20 | 10 | 28 | 44 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross | cross | cross-off | cross-on | cross-on | cross |
High Tide | 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 | 8:47AM3.69m | 9:03PM3.61m | 9:19AM3.43m | 9:39PM3.27m | |||||||
Low Tide | 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 | 3:11PM0.62m | 3:34AM0.82m | 3:57PM0.97m | 4:20AM1.17m | |||||||
 |  | |  |  |  | | | | | |  | | | | | | | | | |
 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — |
 | — | 9:21 | — | — | 9:19 | — | — | 9:17 | — | — | 9:15 | — | — | 9:14 | — | — | 9:13 | — | — | 9:10 |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 32 | 28 | 26 | 30 | 25 | 20 | 23 | 23 | 23 | 25 | 22 | 21 | 22 | 20 | 19 | 20 | 21 | 21 | 22 | 19 |
Feels °C | 28 | 26 | 24 | 27 | 24 | 20 | 21 | 21 | 21 | 21 | 18 | 17 | 17 | 17 | 18 | 17 | 20 | 20 | 21 | 16 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 10 | W 9 | W 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | — | WNW 7 | — | — | WNW 6 | WNW 5 | WNW 7 | WNW 8 | NW 4 | NW 7 | W 7 |
| kJ | 122 | 125 | 89 | 60 | 40 | 108 | 128 | 89 | 83 | — | 18 | — | — | 49 | 15 | 10 | 20 | 5 | 2 | 1 |
Swell 2 Height (m) Direction Period (s) | W 12 | — | — | — | W 9 | — | — | — | — | — | — | — | — | W 9 | WNW 8 | W 9 | — | W 8 | W 11 | — |
| kJ | 12 | — | — | — | 59 | — | — | — | — | — | — | — | — | 2 | 12 | 2 | — | 10 | 3 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 9 | — | — | NW 11 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 5 | — |
Wind waves Height (m) Direction Period (s) | NW 3 | NW 4 | NW 5 | NW 4 | WNW 6 | — | — | — | — | WNW 8 | NW 4 | NW 7 | WNW 4 | — | — | WNW 4 | WNW 4 | — | W 7 | WNW 5 |
| kJ | 5 | 7 | 11 | 11 | 59 | — | — | — | — | 72 | 16 | 55 | 18 | — | — | 8 | 5 | — | 28 | 44 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 22 | 0 | 9 | 293 | 9 | 0 | 388 | 9 | 0 | 388 | 353 | 9 | 767 | 3 | 226 | 769 | 604 | 226 | 293 | 83 |
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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