Surf Forecasts:
Les Dunes surf forecast from 4 Sep 2026:
- Best quality surf: Monday 7 Sep, 8PM (local time) - 4.5ft (1.4m), 13s period, W swell with cross-onshore winds.
- Most powerful swell: Monday 7 Sep, 8PM (local time) - 4.5ft (1.4m), 13s period, W swell with 633 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 11PM (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 Friday (Sep 04) at 11PM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.1m and 17s. Another secondary swell of 0.4m and 3s is also forecast. 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 1.4m 13s and forecast to arrive on Monday (Sep 07) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Sunday (Sep 06) at 5AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Fri 4th Sep) | 2.5ft (0.7m) 9s |
| Best Surf | 8PM (Mon 7th Sep) | 4.5ft (1.4m) 13s |
| Most Powerful | 8PM (Mon 7th Sep) | 4.5ft (1.4m) 13s |
Table - best surf conditions forecast for Les Dunes over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what we’ve got over the next couple weeks at Les Dunes.
Things start off pretty flat and sloppy, so don’t bother paddling out on Friday. That first real chance comes on Saturday the 5th. We’ve got a clean 3ft swell pushing in from the WNW with a moderate energy level (213), and the wind is offshore and light in the morning. That makes for a decent morning session. Conditions hold up into the afternoon with clean, lined-up waves and a nice long period of 13 seconds from the same direction; energy climbs to 277. This is the pick of the bunch for the whole forecast – small but clean and fun.
Sunday the 6th is a step down. The morning’s surfable but ordinary, 2ft from the west with light offshores, but by the afternoon you’ve got onshore wind ruining it. Monday the 7th stays marginal at best, and Tuesday the 8th morning actually sees a pulse of bigger swell (4ft, period 11 seconds, energy 332) but the break can’t handle it – too big for this spot.
From there, we slide into a long stretch of poor conditions. Most of the second week is a write-off: small choppy swell, cross-onshore winds, and generally messy. There’s a tiny window Sunday the 13th with clean offshore wind and 2ft, but it’s barely worth the paddle for the energy levels around 100.
The long range keeps offering very small, short-period swell. The occasional offshore wind day pops up (like Thursday the 17th morning, 3ft from the WNW, energy 127) but the waves are just ordinary. A few days in mid-September – around the 18th and 19th – have strong offshore winds but only 2ft to 2ft, so it’s really only going to appeal to someone with a longboard who just wants a clean glide.
No real standout beyond that first Saturday. If you want a wave, get it early on Saturday the 5th.
– Rusty
Short Range ForecastSome drizzle, heaviest during Sun morning. Warm (max 28°C on Sat night, min 16°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Tue morning. Warm (max 20°C on Mon morning, min 14°C on Tue morning). Mainly fresh winds. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 8 | W 9 | WNW 9 | WNW 9 | WNW 13 | WNW 12 | W 11 | W 10 | W 9 | W 15 | W 13 | W 12 | W 11 | W 10 | W 9 | WNW 10 | WNW 10 | WNW 8 | WNW 8 | W 5 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 68 | 73 | 77 | 124 | 277 | 189 | 110 | 68 | 43 | 212 | 581 | 396 | 332 | 239 | 108 | 158 | 125 | 62 | 62 | 23 | 230 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | off | cross-off | off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-on | cross-off | cross-off | cross-on | on | on | on | cross-on |
High Tide | 9:40AM3.48m | 10:23PM3.26m | 11:13AM3.24m | 00:45AM3.11m | 1:32PM3.31m | 2:26AM3.31m | 2:51PM3.63m | 3:29AM3.62m | 3:47PM4.00m | 4:18AM3.93m | 4:33PM4.32m | 4:59AM4.17m | 5:13PM4.54m | ||||||||
Low Tide | 4:35PM0.96m | 5:09AM1.16m | 5:52PM1.13m | 6:29AM1.26m | 7:18PM1.08m | 7:51AM1.11m | 8:35PM0.80m | 8:59AM0.79m | 9:35PM0.44m | 9:53AM0.43m | 10:24PM0.11m | 10:40AM0.12m | 11:07PM-0.13m | ||||||||
 | |  | |  |  |  | | | | |  | | | | | | |  | | | |
 | 7:30 | — | — | 7:31 | — | — | 7:31 | — | — | 7:33 | — | — | 7:35 | — | — | 7:35 | — | — | 7:37 | — | — |
 | — | 8:40 | — | — | 8:39 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | 3 | — | — | — | — | — | 6 | 2 | — |
Temp °C | 21 | 21 | 20 | 18 | 25 | 28 | 23 | 27 | 21 | 20 | 20 | 20 | 15 | 18 | 18 | 16 | 18 | 18 | 16 | 18 | 21 |
Feels °C | 22 | 19 | 19 | 17 | 24 | 26 | 21 | 26 | 21 | 21 | 20 | 20 | 12 | 15 | 14 | 14 | 15 | 14 | 12 | 15 | 19 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 9 | WNW 9 | WNW 9 | WNW 13 | WNW 12 | W 11 | W 10 | W 9 | W 15 | W 13 | W 12 | W 11 | W 10 | W 9 | WNW 10 | WNW 10 | WNW 8 | W 8 | WNW 7 | W 9 |
| kJ | 68 | 73 | 77 | 124 | 277 | 189 | 110 | 68 | 43 | 212 | 581 | 396 | 332 | 239 | 108 | 158 | 125 | 62 | 1 | 15 | 230 |
Swell 2 Height (m) Direction Period (s) | — | — | W 16 | W 13 | — | — | — | SSE 3 | W 18 | W 9 | — | — | — | — | WNW 12 | W 9 | W 9 | W 8 | W 13 | W 8 | — |
| kJ | — | — | 5 | 89 | — | — | — | 1 | 6 | 76 | — | — | — | — | 29 | 25 | 6 | 20 | 3 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 18 | NW 9 | — | — | — | — | — | — | — | W 15 | W 13 | W 12 | — |
| kJ | — | — | — | — | — | — | — | — | 6 | 20 | — | — | — | — | — | — | — | 4 | 3 | 3 | — |
Wind waves Height (m) Direction Period (s) | — | WNW 2 | WNW 4 | ENE 3 | — | ENE 3 | ESE 2 | — | W 3 | — | — | WNW 4 | — | — | WNW 5 | — | — | — | WNW 8 | W 5 | — |
| kJ | — | 1 | 5 | 1 | — | 3 | 1 | — | 5 | — | — | 29 | — | — | 37 | — | — | — | 62 | 23 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 22 | 0 | 0 | 0 | 0 | 0 | 237 | 159 | 22 | 68 | 22 | 3 | 118 | 9 | 0 | 68 | 22 | 238 | 298 | 37 |
Best forecast wave conditions in Vendee | |||||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Les Dunes surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest