
Surf Forecasts:
Les Dunes surf forecast from 10 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 11PM (local time) - 5ft (1.5m), 10s period, WNW swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 2PM (local time) - 5.5ft (1.7m), 9s period, WNW swell with 443 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 8AM (local time) - 1.5ft (0.4m), 11s 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 Friday (Sep 11) at 8AM. The primary swell is predicted to be 0.4m and 11s period with a secondary swell of 0.4m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Les Dunes in the next 16 days are 1.7m 9s and forecast to arrive on Wednesday (Sep 16) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Saturday (Sep 12) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Fri 11th Sep) | 1.5ft (0.4m) 11s |
| Best Surf | 11PM (Wed 16th Sep) | 5ft (1.5m) 10s |
| Most Powerful | 2PM (Wed 16th Sep) | 5.5ft (1.7m) 9s |
Table - best surf conditions forecast for Les Dunes over the next 16 days.
The Lowdown
Right, let’s have a look at what’s cookin’ for Les Dunes over the next couple of weeks.
It’s a pretty quiet spell for the most part, I’m afraid. The forecast kicks off on Thursday 10th September but there’s nothing to really write home about. The first real chance of anything decent isn’t until Saturday 12th September morning, when we get a tiny window of glassy conditions with a 2ft swell from the west – period is a short 8 seconds, so not much push behind it. The combined energy is weak (64). It’s surfable, but very ordinary. That’s the best we’ve got for the first few days. Sunday 13th morning is also glassy with a similar 3ft swell from the west-northwest – period bumps up to 10 seconds (134 energy), so a touch more shape, but again, it’s just okay.
Then we hit a rough patch. From Sunday afternoon right through to Saturday 19th, the wind is mostly cross or cross-on, and the surf quality is rated poor. The swell tries to bump up a bit around Wednesday 16th, with 5ft to 5ft from the west-northwest, but the wind is a moderate cross-shore, making it a messy cross-chop. The energy is moderate (290-352), but the conditions are not worth paddling out for. It’s the kind of setup that might be more interesting for kite surfing than paddle surfing, honestly.
The real standouts are further out. The first good session looks like Thursday 17th September morning. The swell is 3ft from the west with a solid 11-second period – that’s clean light cross-offshore wind, and the energy is moderate (233). That’s a proper window for a fun, clean wave. Then, there’s a gap of a few days with nothing great, but the absolute highlight is Wednesday 23rd September. The morning brings a 2ft swell from the west with a very long 15-second period (308 energy), and a moderate offshore wind from the northeast. The afternoon is even better: 3ft from the west, 14-second period, and a gentle offshore from the north-northeast (427 energy). That’s clean, lined-up, and glassy. The water temp is 71°, which is much warmer than normal for this time of year, so you’ll be comfy in a spring suit.
The waves on the 23rd will be best for intermediate to experienced surfers – the long period means the swell will wrap in nicely at Les Dunes, but it’s not too big for most. Just be aware that long-period swells like that can sometimes break a bit straight at a beach break, but with offshore wind, it should be well-shaped. Crowds are possible at Les Dunes, so get in early.
Beyond that, the 24th and 25th have clean conditions but smaller, weaker swell, so the 23rd is your clear target.
Rusty out.
Short Range ForecastMostly dry. Warm (max 22°C on Sat afternoon, min 17°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Mon afternoon, min 17°C on Tue night). Winds increasing (calm on Mon afternoon, strong winds from the WNW by Tue night). | |||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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 8 | WNW 10 | WNW 10 | WNW 9 | W 8 | W 8 | W 8 | WNW 10 | WNW 11 | W 10 | WNW 10 | W 10 | W 9 | W 9 | WNW 4 | WNW 8 | WNW 8 | WNW 9 | WNW 10 |
Wave Graph | ||||||||||||||||||||
29 | 19 | 106 | 154 | 103 | 64 | 63 | 49 | 133 | 153 | 135 | 102 | 90 | 59 | 39 | 33 | 331 | 290 | 352 | 363 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross | cross-off | glassy | cross | cross-off | glassy | cross | off | cross-off | cross-on | cross-off | on | cross | cross | cross | cross | cross-off |
High Tide | 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 | 7:31AM4.03m | 7:46PM3.90m | 7:56AM3.80m | 8:12PM3.59m | |||||||
Low Tide | 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 | 1:56PM0.30m | 2:15AM0.52m | 2:35PM0.63m | 2:54AM0.88m | |||||||
— | — | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — | 7:43 | — | — | 7:43 | — | — | 7:45 | — | — | |
8:30 | — | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 18 | 20 | 19 | 19 | 22 | 21 | 21 | 23 | 22 | 21 | 26 | 26 | 22 | 20 | 18 | 17 | 18 | 19 |
Feels °C | 15 | 16 | 17 | 17 | 17 | 20 | 21 | 18 | 21 | 20 | 18 | 20 | 25 | 25 | 19 | 18 | 12 | 14 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | WNW 10 | WNW 10 | WNW 9 | W 8 | W 8 | W 8 | WNW 10 | WNW 11 | W 10 | WNW 10 | W 10 | W 9 | W 9 | — | WNW 11 | WNW 8 | — | WNW 10 |
29 | 19 | 106 | 154 | 103 | 64 | 63 | 49 | 133 | 153 | 135 | 102 | 90 | 59 | 39 | — | 23 | 290 | — | 363 | |
Swell 2 Height (m) Direction Period (s) | NW 9 | WNW 8 | W 7 | — | — | — | W 16 | WNW 10 | NNW 3 | — | NW 4 | — | — | NW 10 | W 13 | — | — | — | — | WNW 12 |
20 | 7 | 10 | — | — | — | 5 | 34 | 1 | — | 3 | — | — | 23 | 3 | — | — | — | — | 29 | |
Swell 3 Height (m) Direction Period (s) | W 12 | W 11 | — | — | — | — | — | W 14 | — | — | — | — | — | — | W 13 | — | — | — | — | — |
3 | 9 | — | — | — | — | — | 33 | — | — | — | — | — | — | 13 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNW 3 | — | — | NW 3 | — | NW 3 | NW 3 | — | — | — | SSW 2 | WNW 4 | WNW 8 | — | WNW 9 | — |
— | — | — | — | 2 | — | — | 2 | — | 1 | 3 | — | — | — | 1 | 33 | 331 | — | 352 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 22 | 172 | 9 | 68 | 0 | 0 | 22 | 9 | 0 | 22 | 0 | 0 | 9 | 0 | 328 | 1045 | 22 | 22 | 172 | 9 |
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)
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.










