
Surf Forecasts:
Les Dunes surf forecast from 4 Aug 2026:
- Best quality surf: Thursday 6 Aug, 11AM (local time) - 2.5ft (0.8m), 7s period, WNW swell with cross-offshore winds.
- Most powerful swell: Thursday 6 Aug, 2AM (local time) - 4ft (1.2m), 8s period, WNW swell with 151 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 11AM (local time) - 2.5ft (0.8m), 7s 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 Thursday (Aug 06) at 11AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.2m and 10s. 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 1.2m 8s and forecast to arrive on Thursday (Aug 06) 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 0.7m 4s period and expected on Friday (Aug 07) at 2AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Thu 6th Aug) | 2.5ft (0.8m) 7s |
| Best Surf | 11AM (Thu 6th Aug) | 2.5ft (0.8m) 7s |
| Most Powerful | 2AM (Thu 6th Aug) | 4ft (1.2m) 8s |
Table - best surf conditions forecast for Les Dunes over the next 16 days.
The Lowdown
Alright, let’s get into it. The next 16 days at Les Dunes are gonna be a real test of patience. To be brutally honest, for the first week and a half, you’re looking at a flat, choppy mess. The swell is tiny and the wind is all over the shop. We’ll get a few clean windows, but the waves just won’t have any push. It’s not until the very end of the period that things finally wake up, and even then, it’s a bit of a wildcard.
Right now, for the first few days, the ocean’s basically a washing machine. We’ve got some small, short-period swell, but it’s crossed up with onshore winds, so it’s just bumpy and junky. The water’s about average for this time of year, so no surprises there. Thursday morning looks like the best of a bad bunch early on, with a super clean 3ft from the WNW, but it’s weak and the period is short, so it’s only gonna be a knee-high dribble. The rest of the week stays poor, with tiny waves and cross-shore winds chopping things up. Friday and Saturday are basically flat. There’s a glassy morning on Sunday the 9th, but with 0.7ft on the face, it’s not worth getting wet for.
The next week, from the 11th to the 17th, is a bit of a dead zone. There’s some small, clean surf early on, but the energy is just not there. The swell direction is from the west, which is okay, but the size is just too small. We get a bit of a pulse on the 14th, with 3ft from the west, and the morning has a moderate offshore wind, making it clean. It’s surfable, but still very ordinary. There’s also a slight bump in energy on the 16th, but the afternoon wind kills it. Basically, if you’re super keen and just need to paddle, the mornings with offshore winds are your best bet, but don’t expect anything memorable.
Now, here’s the interesting bit. The 19th of August, Wednesday morning, is the one real standout in this whole run. The finder is telling me it’s a solid 11/10, and I can see why. We’ve got a strong pulse of swell hitting, with the combined energy jumping up to 879. That’s a serious amount of juice. The swell is predicted to be 6ft from the WNW, which is a good direction for this spot. The wind is light and cross-on, but it’s not going to wreck it. The only catch is that this break is a beach setup, and with a 10-second period, it might be a bit walled. But honestly, this is the day to be out there. It’s the only time in the whole forecast where the swell size and the energy are actually working together. Keep in mind this is more than a week out, so treat it as a promising lead, not a guarantee.
The swell builds further into the 18th, but the winds are onshore and it gets messy. On the 19th, we hit that sweet spot. After that, it looks like it drops again, with a smaller, weaker pulse on the 20th. So, if you’ve got a flexible schedule, keep your eyes on that Wednesday morning, the 19th. It’s the one day that has the potential to be a proper session. Otherwise, it’s a long, flat grind.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Fri afternoon, min 14°C on Thu morning). Winds decreasing (fresh winds from the NW on Thu afternoon, light winds from the NNW by Fri afternoon). | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Sun morning. Warm (max 29°C on Sat afternoon, min 20°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||
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 7 | W 7 | W 7 | WNW 8 | WNW 7 | WNW 4 | WNW 5 | WNW 6 | NW 6 | NW 4 | W 9 | W 9 | WNW 10 | WNW 9 | WNW 9 | NW 4 | NW 6 | WNW 8 | WNW 7 |
Wave Graph | |||||||||||||||||||
106 | 89 | 88 | 151 | 57 | 24 | 33 | 14 | 11 | 7 | 7 | 7 | 10 | 9 | 16 | 4 | 17 | 13 | 9 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-off | cross-off | cross | off | cross-off | cross | off | cross-off | cross | cross-off | glassy | cross-on | cross-on | cross | cross-on | off |
High Tide | 8:54PM3.89m | 9:18AM3.64m | 9:41PM3.67m | 10:11AM3.47m | 10:45PM3.43m | 11:29AM3.32m | 00:24AM3.28m | 1:18PM3.35m | 2:12AM3.37m | 2:46PM3.59m | 3:27AM3.62m | 3:51PM3.93m | 4:24AM3.90m | ||||||
Low Tide | 3:37AM0.60m | 3:58PM0.75m | 4:28AM0.81m | 4:56PM0.94m | 5:30AM1.01m | 6:06PM1.05m | 6:43AM1.10m | 7:25PM1.00m | 8:00AM1.00m | 8:40PM0.77m | 9:08AM0.75m | 9:45PM0.44m | |||||||
— | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | |
9:35 | — | — | 9:32 | — | — | 9:31 | — | — | 9:30 | — | — | 9:29 | — | — | 9:27 | — | — | 9:25 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — |
Temp °C | 21 | 20 | 20 | 19 | 17 | 20 | 20 | 21 | 27 | 27 | 26 | 29 | 28 | 23 | 23 | 22 | 21 | 24 | 22 |
Feels °C | 20 | 19 | 18 | 16 | 14 | 15 | 15 | 17 | 23 | 22 | 22 | 24 | 22 | 22 | 20 | 19 | 19 | 21 | 19 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 7 | W 7 | W 11 | WNW 7 | W 10 | WNW 5 | WNW 6 | W 9 | NW 4 | — | W 9 | NW 3 | WNW 3 | WNW 9 | WSW 4 | NW 6 | WNW 8 | NW 4 |
2 | 89 | 88 | 9 | 57 | 8 | 33 | 14 | 7 | 7 | — | 7 | 2 | 2 | 16 | 3 | 17 | 13 | 7 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 10 | — | W 10 | W 10 | — | W 9 | W 9 | — | WNW 10 | WNW 9 | W 6 | NW 4 | WSW 7 | WSW 7 | WNW 7 |
— | — | — | — | 8 | — | 17 | 7 | — | 6 | 7 | — | 10 | 9 | 1 | 3 | 15 | 9 | 9 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | NW 7 | SE 4 | — | NW 6 | NW 6 | — | W 7 | W 6 | — | W 8 | WNW 8 | — | WSW 7 |
— | — | — | — | — | — | 2 | 1 | — | 2 | 1 | — | 1 | 1 | — | 4 | 7 | — | 4 | |
Wind waves Height (m) Direction Period (s) | W 7 | — | — | WNW 8 | NNE 3 | WNW 4 | NNE 4 | NE 3 | NW 6 | NE 2 | ESE 3 | WNW 6 | NW 3 | — | W 3 | — | — | WNW 5 | NNE 2 |
106 | — | — | 151 | 1 | 24 | 11 | 4 | 11 | 1 | 1 | 3 | 2 | — | 1 | — | — | 9 | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 273 | 226 | 405 | 22 | 0 | 293 | 181 | 151 | 388 | 264 | 808 | 261 | 226 | 244 | 388 | 151 | 22 | 355 | 253 |
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.











