Les Dunes Surf Break

Lat Long: 46.56° N 1.84° W

Les Dunes Surf Forecast and Surf Report

Issued: 1 am 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Les Dunes sea temperature is
20.3° C
0.1° 

Les Dunes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Les Dunes surf forecast from 9 Aug 2026:

  • Best quality surf: Thursday 13 Aug, 2AM (local time) - 2ft (0.6m), 9s period, W swell with cross-offshore winds.
  • Most powerful swell: Friday 14 Aug, 5AM (local time) - 3ft (0.9m), 10s period, WNW swell with 163 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. 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 0.9m 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 0.9m 4s period and expected on Monday (Aug 10) at 11PM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Thu 13th Aug)2ft (0.6m) 9s
Best Surf 2AM (Thu 13th Aug)2ft (0.6m) 9s
Most Powerful 5AM (Fri 14th Aug)3ft (0.9m) 10s

Table - best surf conditions forecast for Les Dunes over the next 16 days.


The Lowdown

Right, let’s have a look at what’s on offer. I’m not gonna lie, the next couple of weeks are looking pretty flat for the Dunes. The forecast is basically a long stretch of small, weak, and often messy conditions. There’s a gap of several days here with barely anything worth paddling out for. The first real chance you’ll get is around the morning of the 14th of August, and even then, it’s marginal.

The water is sitting at 69°F which is pretty much normal for this time of year, so no surprises there.

The only spot we’ve got to look at is Les Dunes. It’s a beginner-friendly, fairly consistent break, exposed to the swell, and it likes a WSW swell direction. The crowds are sometimes an issue, so you might have company.

For the first week, from the 9th through to the 13th, it’s a write-off. Tiny waves, mostly under 2ft, with a mix of onshore and cross-shore breezes ruining what little shape there is. The combined energy is weak, mostly in the teens to low eighties, so don’t bother.

The morning of Friday the 14th of August is the first sign of life. We’ve got a 2ft swell from the west at 10 seconds, with a light cross-offshore breeze making it clean. The combined energy is moderate (109). It’s surfable, but it’s very ordinary. For a beginner, this might be the pick of a bad bunch – clean, small, and manageable.

The rest of the 14th and the 15th drop back down to tiny, junky waves. The 16th and 17th stay small and mostly choppy. The 18th of August morning sees a clean 2ft, but it’s short-period and weak. The 20th of August morning has a longer period swell (12 seconds) but only 1ft, so it’s clean but tiny.

The real standout, if you can call it that, is the morning of Saturday the 22nd of August. We get a 2ft swell from the west at 10 seconds, but the wind is fresh offshore from the NE at 19 mph, keeping the surface clean. The combined energy is weak (58), but for a small wave, that offshore wind will make it rideable. It’s the best on offer in the entire 16-day window, but it’s still a small wave day.

Other than that, the 22nd afternoon and 23rd morning also have moderate offshore winds, but the swell is tiny. There’s nothing here that’s going to get your heart racing. The combined energy numbers never get beyond moderate, with the highest being 129 on the 13th, but that was crossed-up and messy. For a beginner, the 14th of August morning is the most practical. For anyone else, it’s a long wait for a very small reward.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Sun morning. Warm (max 27°C on Mon afternoon, min 18°C on Mon morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 31°C on Fri afternoon, min 22°C on Fri morning). Wind will be generally light.

Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
0
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
WNW
10
0.3
WNW
9
0.4
WSW
7
0.4
WSW
7
0.9
NW
4
0.7
NW
5
0.2
WNW
8
0.3
WNW
8
0.2
W
12
0.4
W
11
0.6
W
10
0.6
W
9
0.7
W
9
0.5
W
11
0.8
W
10
0.7
W
10
0.6
W
9
0.6
W
9
0.5
W
8
0.5
W
8
0.4
WNW
8
Wave Graph
Metric surfscale
Energy kJ
18
17
18
17
25
21
7
13
12
37
71
60
81
64
128
92
60
56
35
34
21
Wind (km/h)
0
NE
20
WNW
15
NNE
10
NE
20
WNW
20
NNE
15
SE
15
W
15
N
5
WSW
15
W
10
N
15
NW
25
NW
15
N
15
N
25
WNW
15
NNE
10
E
10
W
15
SW
Wind State
glassy
cross
off
off
cross
off
cross
cross-on
cross-off
on
cross-on
cross-off
cross
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-on
on
High Tide
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
7:12AM4.27m
7:26PM4.52m
Low Tide
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
1:07PM-0.13m
1:33AM-0.11m
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:58
6:58
7:00
7:01
7:03
7:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:27
9:25
9:23
9:22
9:21
9:19
9:17
 mm
1
Temp °C
23
24
22
24
27
24
25
27
27
28
28
27
28
30
26
28
31
27
30
29
29
Feels °C
24
22
19
23
24
20
24
26
25
27
25
24
26
27
22
26
27
23
27
27
27
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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