
Surf Forecasts:
Les Dunes surf forecast from 8 Aug 2026:
- Best quality surf: Friday 14 Aug, 2AM (local time) - 3.5ft (1.0m), 10s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 14 Aug, 2AM (local time) - 3.5ft (1.0m), 10s period, WNW swell with 218 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 11AM (local time) - 1.5ft (0.4m), 9s period with WNW 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 Monday (Aug 10) at 11AM. The primary swell is predicted to be 0.4m and 9s period with a secondary swell of 0.4m and 7s. Another secondary swell of 0.3m and 9s is also forecast. The wind is predicted to be 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 2AM. 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 Tuesday (Aug 11) at 2AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Mon 10th Aug) | 1.5ft (0.4m) 9s |
| Best Surf | 2AM (Fri 14th Aug) | 3.5ft (1.0m) 10s |
| Most Powerful | 2AM (Fri 14th Aug) | 3.5ft (1.0m) 10s |
Table - best surf conditions forecast for Les Dunes over the next 16 days.
The Lowdown
G’day, it’s Rusty.
Honestly, the next couple of weeks are looking pretty flat and grim for Les Dunes. We’ve got a real dry spell on our hands for the bulk of the period, with only a few fleeting moments that are even worth paddling out for. The water temp is sitting at 69°, which is bang on average for this time of year, so no surprises there.
The first week is a write-off, plain and simple. There’s a small bump of weak energy on Monday the 10th, with a combined swell energy of only 65, pushing a 1ft wave from the WNW. It’s clean with a light offshore NNE breeze, but it’s so weak and gutless it’s barely a ripple. We see a little more energy mid-week, around Wednesday the 13th, with the swell energy climbing to 110-157, and waves up to 3ft. But it’s all cross-shore and choppy, not worth getting excited about.
Friday the 14th morning is your best bet in that first week. There’s a 3ft WNW swell with a 10-second period, and the energy is up to 157. The wind is a light cross-offshore from the NNW, so it’s clean. It’s still small, but it’s the only time the conditions line up to give you a few half-decent ones. Don’t expect much, though – it’s very ordinary.
Then we go quiet again. The swell fades and the wind stays messy. We get a few pulses here and there—a 3ft on Sunday the 16th and again on the 22nd—but it’s either too short-period, onshore, or choppy to bother with. A lot of that week is just lumpy cross-shore junk.
The real standout is way out in the second week. On Sunday the 23rd, the ocean finally wakes up. We’re looking at a 6ft WNW swell, with a period of 10-11 seconds and a combined energy of 1216-1275. That’s proper energy, no doubt. The wind is a moderate to fresh cross-shore, which isn’t ideal, but the size is there. Now, 6ft is pushing into the too-big-for-a-beginner zone, and while the wave comment says wind and tide are favorable, it’s predicted to be too big for this break. Les Dunes is exposed and this might just be a washing machine. Plus, the period is in that mid-range, so it could be lumpy. Still, if you’re an experienced surfer and you’re willing to fight for a few, that’s the only day with any real power in the whole fortnight. But think of it as a promise that won’t be fully kept until it’s closer.
So, it’s a long, flat stretch, with that one Sunday looking like the only hope. If you’re a kitesurfer, that afternoon wind on the 15th or 21st might be more your speed. For the rest of us, it’s a waiting game.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Warm (max 27°C on Sat afternoon, min 19°C on Mon morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 31°C on Wed afternoon, min 20°C on Fri morning). Wind will be generally light. | |||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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 9 | WNW 10 | WNW 10 | WNW 9 | WSW 7 | WNW 9 | WSW 7 | WNW 9 | WSW 7 | WNW 8 | W 10 | W 11 | W 10 | W 9 | W 9 | W 11 | WNW 10 | WNW 10 | WNW 9 | W 9 |
Wave Graph | ||||||||||||||||||||
2 | 10 | 18 | 17 | 17 | 32 | 17 | 15 | 9 | 13 | 7 | 37 | 71 | 81 | 83 | 152 | 218 | 157 | 146 | 39 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-off | cross-on | cross-off | off | cross-on | off | cross | cross-on | cross-off | cross | cross-on | cross-off | cross | cross | cross-off | cross-off | cross | off |
High Tide | 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 | 6:35AM4.32m | 6:50PM4.66m | ||||||||
Low Tide | 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 | 12:25PM-0.16m | 00:53AM-0.25m | |||||||
— | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:03 | — | — | |
— | 9:29 | — | — | 9:27 | — | — | 9:25 | — | — | 9:23 | — | — | 9:22 | — | — | 9:21 | — | — | 9:19 | |
mm | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 24 | 22 | 24 | 22 | 24 | 27 | 25 | 24 | 28 | 27 | 30 | 31 | 28 | 29 | 29 | 26 | 25 | 28 | 24 |
Feels °C | 22 | 20 | 22 | 22 | 18 | 22 | 26 | 23 | 22 | 27 | 24 | 27 | 28 | 25 | 27 | 25 | 23 | 23 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | W 9 | WNW 10 | WNW 10 | WNW 9 | WNW 4 | WSW 7 | WSW 7 | WSW 7 | NW 5 | WNW 8 | WNW 8 | W 11 | W 10 | W 9 | W 9 | W 11 | WNW 10 | WNW 10 | W 9 | WNW 4 |
2 | 10 | 18 | 17 | 12 | 16 | 17 | 10 | 6 | 13 | 6 | 37 | 71 | 81 | 83 | 152 | 218 | 157 | 108 | 12 | |
Swell 2 Height (m) Direction Period (s) | NW 6 | W 7 | NW 3 | W 6 | WSW 7 | WNW 9 | WSW 7 | WNW 9 | WSW 7 | WSW 7 | W 10 | WNW 8 | SW 6 | W 5 | W 12 | — | WNW 4 | — | — | W 9 |
1 | 1 | 1 | 3 | 17 | 17 | 17 | 15 | 9 | 4 | 7 | 6 | 1 | 1 | 26 | — | 13 | — | — | 39 | |
Swell 3 Height (m) Direction Period (s) | — | W 6 | W 6 | — | WNW 9 | WNW 9 | — | W 11 | WNW 8 | W 10 | WSW 6 | W 6 | — | — | — | — | — | — | — | — |
— | 1 | 1 | — | 8 | 32 | — | 2 | 7 | 8 | 4 | 1 | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | NW 3 | — | WNW 3 | — | NW 5 | NW 4 | NNW 4 | — | — | NW 3 | SSW 6 | — | NW 3 | WNW 3 | NW 3 | — | NW 5 | WNW 9 | NNE 3 |
— | 1 | — | 2 | — | 11 | 14 | 24 | — | — | 2 | 4 | — | 2 | 1 | 5 | — | 23 | 146 | 3 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 237 | 180 | 151 | 388 | 151 | 0 | 226 | 151 | 151 | 388 | 226 | 136 | 237 | 0 | 9 | 22 | 0 | 0 | 293 | 3 |
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.











