Surf Forecasts:
Les Dunes surf forecast from 8 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 11PM (local time) - 6.5ft (2.0m), 9s period, W swell with cross-offshore winds.
- Most powerful swell: Tuesday 8 Sep, 11PM (local time) - 6.5ft (2.0m), 9s period, W swell with 632 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 11PM (local time) - 6.5ft (2.0m), 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 Tuesday (Sep 08) at 11PM. The primary swell is predicted to be 2.0m and 9s 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 2.0m 9s and forecast to arrive on Tuesday (Sep 08) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Monday (Sep 14) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 8th Sep) | 6.5ft (2.0m) 9s |
| Best Surf | 11PM (Tue 8th Sep) | 6.5ft (2.0m) 9s |
| Most Powerful | 11PM (Tue 8th Sep) | 6.5ft (2.0m) 9s |
Table - best surf conditions forecast for Les Dunes over the next 16 days.
The Lowdown
Hey, Rusty here again. Let’s run through the same slow period in feet and miles per hour.
This stretch of coast is in a proper lull. There’s nothing worth your time until Tuesday, September 8th, and even then, it’s a write-off. A 5ft west swell is on the cards, but a strong 19 mph onshore wind from the southwest is gonna turn it into a blown-out mess. Water temp is a touch warmer than average at 71°, which is comfortable, but that’s it. The combined energy is moderate at 935, but with that wind, don’t bother.
Wednesday, September 9th, early morning at Les Dunes offers a bit of hope. A 4ft west swell with a 9-second period, and a light offshore breeze from the north-northwest keeping things clean. The catch is, the swell might be pushing the limits for this beginner-friendly spot. Energy is moderate at 281. The afternoon goes cross-shore and choppy.
From Thursday, September 10th, all the way through to the middle of the next week, we’re looking at flatness. Swells drop below 3ft, and the wind keeps blowing onshore or cross-shore. There’s a few tiny windows – Saturday the 12th morning has an offshore breeze on a tiny 2ft swell, and Sunday the 13th morning is glassy with a 3ft swell and decent energy at 176 – but it’s barely a wave worth suiting up for.
We stay in a funk until Saturday, September 19th. That afternoon, a little pulse arrives: 3ft from the northwest, a very long 11-second period, and glassy conditions. Combined energy is moderate at 153, and it’s listed as “surfable but ordinary.” It’s a flicker, not a fire.
The following week (from the 20th onward) stays stubbornly small. There’s a tiny bump on Monday the 21st afternoon with a 2ft west swell, clean offshore winds, and a long 12-second period making it feel a bit better than it looks – energy is low at 89. Wednesday the 23rd morning has a 2ft west swell with a 13-second period and moderate energy at 223, but it’s still just an ankle-biter.
If I had to point you somewhere, the glassy, long-period pulse on Saturday the 19th afternoon, or the clean offshore session on Monday the 21st afternoon, are the highlights. But it’s slim pickings. This is a stretch for the true patient surfer.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Tue morning, min 15°C on Tue night). Winds decreasing (strong winds from the SW on Tue afternoon, light winds from the SE by Thu morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Sun afternoon, min 15°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
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) | W 11 | W 7 | W 9 | W 9 | W 9 | NW 10 | WNW 8 | W 8 | W 8 | W 10 | W 10 | W 9 | W 8 | WNW 8 | W 10 | WNW 10 | W 10 | WNW 10 | WNW 10 | WNW 10 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 606 | 506 | 517 | 269 | 230 | 98 | 41 | 29 | 28 | 74 | 148 | 125 | 64 | 67 | 100 | 139 | 130 | 136 | 128 | 131 | 59 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross-off | cross-off | cross | off | cross | cross-on | cross-on | cross-on | cross-on | off | off | cross | cross-off | glassy | cross | cross-off | off | cross | off |
High Tide | 3:47PM4.00m | 4:18AM3.93m | 4:33PM4.32m | 4:59AM4.17m | 5:13PM4.54m | 5:36AM4.32m | 5:49PM4.63m | 6:09AM4.37m | 6:22PM4.58m | 6:39AM4.33m | 6:52PM4.43m | 7:06AM4.21m | 7:20PM4.19m | ||||||||
Low Tide | 8:59AM0.79m | 9:35PM0.44m | 9:53AM0.43m | 10:24PM0.11m | 10:40AM0.12m | 11:07PM-0.13m | 11:22AM-0.09m | 11:47PM-0.24m | 12:02PM-0.18m | 00:25AM-0.21m | 12:40PM-0.13m | 1:02AM-0.06m | 1:18PM0.03m | 1:38AM0.20m | |||||||
 |  |  |  | | | | |  | | | | | | | | | | | | | |
 | 7:35 | — | — | 7:35 | — | — | 7:37 | — | — | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — | 7:43 | — | — |
 | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — | — | 8:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 19 | 17 | 18 | 18 | 16 | 18 | 18 | 18 | 20 | 19 | 17 | 20 | 19 | 19 | 21 | 20 | 19 | 24 | 24 |
Feels °C | 16 | 15 | 13 | 13 | 13 | 14 | 14 | 16 | 16 | 17 | 19 | 17 | 15 | 18 | 16 | 18 | 18 | 20 | 20 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | W 11 | — | W 9 | W 9 | NW 9 | NW 10 | WNW 8 | W 8 | W 8 | W 10 | W 10 | W 9 | W 8 | WNW 8 | W 10 | WNW 10 | W 10 | WNW 10 | WNW 10 | WNW 10 | W 9 |
| kJ | 329 | — | 517 | 269 | 203 | 98 | 41 | 29 | 28 | 74 | 148 | 125 | 64 | 67 | 100 | 139 | 130 | 136 | 128 | 131 | 59 |
Swell 2 Height (m) Direction Period (s) | — | — | — | WNW 11 | W 9 | W 8 | W 8 | NW 9 | W 11 | W 8 | — | — | W 18 | W 16 | W 13 | W 14 | — | — | — | NW 9 | NW 4 |
| kJ | — | — | — | 12 | 122 | 71 | 35 | 20 | 9 | 18 | — | — | 6 | 20 | 92 | 37 | — | — | — | 19 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 13 | W 12 | NW 8 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 3 | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 11 | W 7 | — | — | W 9 | — | — | — | WNW 3 | — | — | NNE 2 | — | — | NW 3 | — | NW 3 | NW 4 | — | — | NNE 3 |
| kJ | 606 | 506 | — | — | 230 | — | — | — | 3 | — | — | 1 | — | — | 4 | — | 2 | 12 | — | — | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 128 | 353 | 9 | 3 | 159 | 0 | 3 | 22 | 231 | 22 | 355 | 0 | 0 | 22 | 0 | 0 | 256 | 0 | 0 | 22 | 0 |
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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