Les Dunes Surf Break

Lat Long: 46.56° N 1.84° W

Les Dunes Surf Forecast and Surf Report

Issued: 7 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Les Dunes sea temperature is
20.6°C
0.9° 

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 4 Sep 2026:

  • Best quality surf: Monday 7 Sep, 5PM (local time) - 4.5ft (1.4m), 13s period, W swell with cross-onshore winds.
  • Most powerful swell: Monday 7 Sep, 5PM (local time) - 4.5ft (1.4m), 13s period, W swell with 673 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 2AM (local time) - 2.5ft (0.8m), 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 Saturday (Sep 05) at 2AM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.1m and 16s. 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 1.4m 13s and forecast to arrive on Monday (Sep 07) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Sunday (Sep 06) at 5AM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sat 5th Sep)2.5ft (0.8m) 9s
Best Surf 5PM (Mon 7th Sep)4.5ft (1.4m) 13s
Most Powerful 5PM (Mon 7th Sep)4.5ft (1.4m) 13s

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


The Lowdown

Alright, Rusty here. Let’s look at what’s cooking for the next couple weeks.

Honestly, it’s a bit of a quiet run overall, with not much to write home about. There’s a small window of interest early on, but then a long stretch of nothing special.

The best on offer is Saturday morning, September 5th at Les Dunes. We’ve got a clean 3 ft swell rolling in from the WNW, with a light offshore breeze from the ENE at 9 mph. That’s a glassy setup, and the combined wave energy is in the moderate range (204). It’s not huge, but for a beginner-friendly spot like this, the conditions are about as good as it gets. The water temp is about average for this time of year.

Saturday afternoon sees the wind switch to a light cross-shore from the NW at 6 mph, with a bigger 3 ft swell from the W and a long 13-second period. The energy jumps up to 339, but the cross-shore wind and questionable tide make it a marginal call.

Sunday morning (Sept 6) is clean with an ESE cross-offshore breeze at 9 mph, but the swell drops to 2 ft and the energy is weak (119). The wind is decent, but the surf is just too small to get excited about.

After that, things get grim. From Sunday afternoon all the way through to the end of the forecast on September 20th, it’s a long stretch of poor surf conditions. Swell stays small, often under 3 ft, and wind is mostly onshore or cross-onshore. There’s a spike on Monday afternoon (Sept 7) with 5 ft swell and strong energy (673), but with a cross-onshore wind at 9 mph and the spot being exposed, it’s considered too big for this break. Not a good look.

Beyond that, you’re looking at a lot of weak, choppy, or blown-out days. There’s a small clean window on Sunday morning, September 13th, with a 2 ft swell and light offshore wind, but the energy is low (102) and the waves are just ordinary. By the second week, it’s pretty much flat or junk.

If you’re a kitesurfer, the windy afternoons with cross-shore conditions might be more interesting, but for a paddle surfer, this is a long dry spell. Don’t hold your breath.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 29°C on Sun afternoon, min 17°C on Sat morning). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Thu morning. Warm (max 20°C on Mon night, min 14°C on Tue afternoon). Wind will be generally light.

Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
1
0
0
0
0
1
!
!
!
0
!
0
0
0
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)
0.8
WNW
9
0.8
WNW
9
1
W
13
0.8
WNW
12
0.7
WNW
11
0.6
W
10
0.8
W
9
0.8
WSW
15
1.4
W
13
1.3
W
12
1.2
W
11
1.1
W
10
1.1
W
10
1
WNW
9
1
WNW
9
1
WNW
8
0.8
WNW
8
0.7
W
7
0.5
W
7
Wave Graph
Metric surfscale
Energy kJ
99
115
339
189
119
70
108
288
673
469
329
244
226
177
169
133
79
54
24
Wind (km/h)
10
N
15
ENE
10
NW
20
ENE
15
ESE
20
SW
20
WNW
10
W
15
W
15
WNW
20
N
15
WNW
20
NW
15
WNW
20
WNW
15
WNW
10
WSW
20
SW
20
WNW
Wind State
cross-off
off
cross
cross-off
cross-off
on
cross-on
cross-on
cross-on
cross
cross-off
cross-on
cross-off
cross-on
cross
cross-on
on
on
cross-on
High Tide
10:23PM3.26m
11:13AM3.24m
00:45AM3.11m
1:32PM3.31m
2:26AM3.31m
2:51PM3.63m
3:29AM3.62m
3:47PM4.00m
4:18AM3.93m
4:33PM4.32m
4:59AM4.17m
5:13PM4.54m
Low Tide
5:09AM1.16m
5:52PM1.13m
6:29AM1.26m
7:18PM1.08m
7:51AM1.11m
8:35PM0.80m
8:59AM0.79m
9:35PM0.44m
9:53AM0.43m
10:24PM0.11m
10:40AM0.12m
11:07PM-0.13m
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
part cloud
part cloud
part cloud
light rain
light rain
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:31
7:31
7:33
7:35
7:35
7:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:40
8:39
8:37
8:36
8:34
8:31
8:30
 mm
1
1
2
1
Temp °C
21
19
24
27
25
29
21
20
21
20
17
16
17
18
18
18
18
18
19
Feels °C
21
16
22
24
22
26
21
21
21
20
14
14
14
15
14
15
16
14
17
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Les Dunes:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Les Dunes surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest