
Surf Forecasts:
Les Dunes surf forecast from 25 Jul 2026:
- Best quality surf: Sunday 26 Jul, 2AM (local time) - 6ft (1.8m), 7s period, NW swell with cross-offshore winds.
- Most powerful swell: Sunday 26 Jul, 2AM (local time) - 6ft (1.8m), 7s period, NW swell with 295 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 2AM (local time) - 6ft (1.8m), 7s period with NW 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 Sunday (Jul 26) at 2AM. The primary swell is predicted to be 1.8m and 7s period with a secondary swell of 1.4m and 7s. 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 1.8m 7s and forecast to arrive on Sunday (Jul 26) 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 0.6m 5s period and expected on Saturday (Jul 25) at 11AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 26th Jul) | 6ft (1.8m) 7s |
| Best Surf | 2AM (Sun 26th Jul) | 6ft (1.8m) 7s |
| Most Powerful | 2AM (Sun 26th Jul) | 6ft (1.8m) 7s |
Table - best surf conditions forecast for Les Dunes over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cookin’ for Les Dunes over the next couple of weeks. I gotta be straight with you – it’s a slow start. There’s a big ol’ gap of surf that’s just not worth paddling out for, so we’re gonna be patient.
Looking at the whole picture, the first week and a half is a real struggle. We’ve got tiny, weak energy (down to 1), and even when the wind turns clean, the swell just isn't there. The water temp is sittin’ at 68°F, perfectly average for this time of year, no surprises there.
Alright, let’s walk through it. From Saturday the 25th of July through to Monday the 27th, we see a jump in energy to around 125 to 203 but it’s all messy. Cross-onshore winds and short, weak period swells (5 to 9 seconds) mean the conditions are poor. Not a single wave worth paddling for.
Tuesday the 28th through to Friday the 31st is dead calm with really low energy. We’re talkin’ combined swell energy in the teens and thirties. There’s a brief moment on Thursday morning the 30th where the wind goes glassy, but the swell is only 1.0ft from the WNW – basically a lake. Not surf.
Then we hit the first couple of days of August. Saturday the 1st shows a bit more push with energy up to 235, but it’s a 4ft W swell with cross-onshore wind. It’s just ordinary. The pattern holds through Monday the 3rd and Tuesday the 4th – small, weak, mostly onshore.
Finally, we start to see some hope. Wednesday the 5th of August has energy building to 216, but the wind is straight onshore from the WSW. Not the one.
Then, on Thursday the 6th of August morning, we get our first real standout. The wind is a clean cross-off from the NNE, only a gentle breeze. We’ve got a 3ft swell from the west with a 9-second period – that’s a nice, workable groundswell. The energy is moderate at 222. The conditions are clean, and it’s a rare moment of “good surf conditions”. This is the pick of the whole run, but it’s a little inconsistent at Les Dunes, so don’t expect non-stop sets.
The rest of the week into the 9th of August is mostly a bust, with onshore winds and small swell, until Sunday the 9th of August morning. Here’s the wild card. The swell jumps to 7ft from the WSW, with energy rocketing to 644 – that’s strong wave energy. It’s clean with a cross-off wind. But the forecast literally says the swell is predicted to be too big for this break. 10ft in the afternoon? That’s expert-only territory and frankly, it’s likely just a washing machine close to shore. For a beginner-friendly spot like Les Dunes, this is a pass unless you’re a charger on a step-up.
So, the best on offer? Thursday morning the 6th of August. Clean 3ft west swell with light offshore wind. It’s not pumping, but it’s the only window all fortnight where the stars align. After that, it gets big and messy.
If you’re just lookin’ for a paddle, Monday evening the 3rd of August morning is glassy, but at 2ft, you’ll be waiting.
Honestly, it’s a tough run. When you’ve got a break that’s “fairly consistent” and we see this many 0-rated days, it’s a sign of a flat spell. But things often change around here. Keep an eye on the sky.
-Rusty
Short Range ForecastSome drizzle, heaviest during Sun afternoon. Warm (max 24°C on Sat morning, min 14°C on Mon morning). Winds decreasing (fresh winds from the WNW on Sat afternoon, light winds from the NNW by Mon morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 31°C on Tue afternoon, min 20°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||
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 | WNW 5 | NW 7 | WNW 6 | W 5 | WNW 6 | WNW 9 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | W 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | W 12 | W 10 |
Wave Graph | |||||||||||||||||||||
1 | 124 | 295 | 60 | 76 | 137 | 132 | 203 | 69 | 74 | 52 | 47 | 40 | 25 | 25 | 13 | 24 | 13 | 11 | 12 | 174 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-on | cross-on | cross-off | cross-off | cross-on | off | cross | on | cross-off | on | cross-on | cross-off | glassy | cross-on | off | cross-on | cross-on | cross-on |
High Tide | 3:15PM3.26m | 3:44AM3.22m | 4:02PM3.44m | 4:26AM3.39m | 4:41PM3.65m | 5:02AM3.56m | 5:15PM3.84m | 5:34AM3.71m | 5:46PM4.00m | 6:03AM3.82m | 6:15PM4.12m | 6:32AM3.89m | 6:44PM4.19m | ||||||||
Low Tide | 8:18AM1.36m | 8:54PM1.25m | 9:17AM1.21m | 9:48PM1.05m | 10:06AM1.00m | 10:34PM0.83m | 10:48AM0.78m | 11:14PM0.61m | 11:27AM0.57m | 11:52PM0.43m | 12:03PM0.42m | 00:28AM0.31m | 12:39PM0.32m | 1:03AM0.24m | |||||||
6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:46 | — | — | |
— | — | 9:47 | — | — | 9:45 | — | — | 9:45 | — | — | 9:44 | — | — | 9:43 | — | — | 9:42 | — | — | 9:39 | |
mm | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 23 | 20 | 20 | 21 | 20 | 18 | 21 | 23 | 27 | 31 | 29 | 27 | 28 | 23 | 25 | 28 | 26 | 26 | 30 | 27 |
Feels °C | 20 | 17 | 15 | 17 | 19 | 17 | 17 | 18 | 20 | 23 | 27 | 26 | 24 | 25 | 21 | 24 | 25 | 23 | 23 | 26 | 29 |
Swell 1 Height (m) Direction Period (s) | W 8 | S 6 | WNW 7 | W 10 | W 9 | WNW 6 | WNW 9 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | W 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | WNW 7 | W 10 |
1 | 1 | 180 | 2 | 7 | 137 | 132 | 203 | 69 | 74 | 52 | 47 | 40 | 25 | 25 | 13 | 24 | 13 | 11 | 11 | 174 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | W 11 | — | NW 4 | W 10 | W 10 | NW 4 | W 12 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 9 | — | 4 | 8 | 8 | 3 | 12 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 10 | SW 5 | — | W 9 | W 9 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 1 | — | 6 | 7 | — | |
Wind waves Height (m) Direction Period (s) | NW 5 | WNW 5 | NW 7 | WNW 6 | W 5 | — | — | — | NW 4 | ESE 3 | — | — | — | — | NW 3 | NW 4 | NW 3 | NW 3 | — | WNW 2 | NW 3 |
20 | 124 | 295 | 60 | 76 | — | — | — | 17 | 1 | — | — | — | — | 5 | 6 | 2 | 4 | — | 1 | 2 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 151 | 436 | 22 | 403 | 388 | 9 | 0 | 293 | 0 | 19 | 22 | 3 | 226 | 293 | 226 | 136 | 363 | 151 | 261 | 37 | 9 |
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.










