
Surf Forecasts:
Les Dunes surf forecast from 11 Aug 2026:
- Best quality surf: Friday 14 Aug, 5AM (local time) - 3.5ft (1.0m), 10s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 14 Aug, 5AM (local time) - 3.5ft (1.0m), 10s period, W swell with 200 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. 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 1.0m 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 1.1m 5s period and expected on Tuesday (Aug 18) 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 | 5AM (Fri 14th Aug) | 3.5ft (1.0m) 10s |
| Most Powerful | 5AM (Fri 14th Aug) | 3.5ft (1.0m) 10s |
Table - best surf conditions forecast for Les Dunes over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a long, hard look at the next couple of weeks for Les Dunes. I gotta be straight with you – it’s a tough watch. The whole 16-day window is one long stretch of small, weak, and often messy conditions. There’s no real standout, no day to circle on the calendar. It’s going to be a grind if you’re desperate for a paddle.
Right off the bat, we’ve got a few days with barely a bump. Wednesday the 12th only shows 1 ft from the west with a long 11-second period, but the combined energy is just 45 – that’s weak. It’s glassy in the morning, but it’s “poor surf conditions” the whole day. Thursday the 13th is similar: tiny 2 ft to 3 ft west swell, energy still low around 90-139, but the wind is cross or cross-shore all day, messing up any chance of a decent wave.
Friday the 14th morning is probably your best bet in the whole outlook, but that’s not saying much. The swell is 2 ft from the west at 10 seconds, moderate energy at 90, but we get a cross-offshore breeze from the north. It cleans things up enough to be “surfable waves but very ordinary conditions.” It’s a true beginner wave – small, gentle, and clean for a couple of hours. That’s your highlight.
After that Friday morning, it’s back to the pits. Saturday the 15th is cross-shore and choppy with rain. Sunday the 16th morning cleans up again with a cross-offshore breeze and a slightly bigger 3 ft west-northwest swell, but the period is a short 8 seconds, so it’s weak and crumbly. The rest of that week is a blur of onshore winds and tiny surf. By Monday the 18th afternoon we get a brief offshore wind from the northeast with a tiny 3 ft swell, but it’s still just “ordinary.”
The second week is more of the same – small and wind-affected. Thursday the 20th morning shows a promising 3 ft west-northwest swell with a 10-second period and clean cross-offshore wind, and moderate energy at 195. It’s another “surfable” window, but nothing special. After that, it’s back to cross-shore chop and onshore winds.
Even the far-out days, like the 25th and 27th of August, see a bump in size to 3 ft–4 ft, but the wind is howling from the northwest at 25 mph, turning it into a complete mess. That much wind on a small, exposed beach break just isn’t worth paddling out for.
So, honestly, if you’re a beginner just wanting to get wet and feel a tiny glide, Friday morning the 14th is your only real shot at something semi-decent for a couple of hours. For anyone else, this stretch is a write-off. Keep an eye on the charts, because it can’t stay this flat forever.
– Rusty
Short Range ForecastMostly dry. Warm (max 30°C on Tue night, min 21°C on Fri morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Sat morning. Warm (max 28°C on Sat night, min 18°C on Mon morning). Winds increasing (light winds from the NNW on Sat afternoon, fresh winds from the NW by Sun night). | ||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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 11 | W 10 | W 9 | W 9 | W 10 | W 10 | W 10 | W 9 | WNW 6 | W 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | NW 7 | NW 5 | NW 5 |
Wave Graph | |||||||||||||||||||
7 | 38 | 49 | 61 | 87 | 122 | 125 | 90 | 60 | 40 | 50 | 120 | 112 | 113 | 88 | 18 | 75 | 51 | 24 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | cross-off | cross | cross | cross-off | cross-off | cross | off | cross | cross | off | cross-off | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 10:39PM0.11m | 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 | ||||||
— | 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 | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — |
Temp °C | 30 | 29 | 30 | 28 | 28 | 29 | 28 | 26 | 30 | 26 | 21 | 26 | 28 | 24 | 26 | 23 | 20 | 22 | 20 |
Feels °C | 28 | 28 | 27 | 25 | 26 | 26 | 24 | 25 | 28 | 24 | 21 | 24 | 25 | 22 | 23 | 21 | 15 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | W 11 | W 10 | W 9 | W 9 | W 10 | W 10 | W 10 | W 9 | WNW 6 | W 8 | — | WNW 8 | WNW 8 | — | WNW 7 | NW 7 | — | NW 5 |
6 | 38 | 49 | 61 | 87 | 122 | 125 | 90 | 60 | 39 | 50 | — | 112 | 113 | — | 18 | 75 | — | 24 | |
Swell 2 Height (m) Direction Period (s) | WSW 6 | WNW 8 | W 6 | W 5 | WNW 4 | W 12 | — | — | — | W 9 | — | — | — | — | — | — | — | — | W 9 |
4 | 6 | 1 | 1 | 1 | 12 | — | — | — | 40 | — | — | — | — | — | — | — | — | 2 | |
Swell 3 Height (m) Direction Period (s) | W 10 | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
7 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NW 3 | — | WNW 2 | NW 3 | NW 4 | NW 3 | NW 4 | NW 5 | NW 4 | NNE 3 | NW 5 | WNW 8 | — | — | WNW 8 | WNW 4 | — | NW 5 | NE 3 |
2 | — | 1 | 4 | 2 | 5 | 12 | 23 | 16 | 4 | 23 | 120 | — | — | 88 | 12 | — | 51 | 2 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 197 | 3 | 293 | 0 | 9 | 22 | 9 | 0 | 293 | 0 | 9 | 22 | 0 | 0 | 355 | 261 | 388 | 388 | 430 |
Best forecast wave conditions in Vendee | |||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











