Les Dunes Surf Break

Lat Long: 46.56° N 1.84° W

Les Dunes Surf Forecast and Surf Report

Issued: 7 pm 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Les Dunes sea temperature is
20.2°C
0.3° 

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 1 Sep 2026:

  • Best quality surf: Monday 7 Sep, 2PM (local time) - 3.5ft (1.1m), 14s period, W swell with cross-onshore winds.
  • Most powerful swell: Monday 7 Sep, 5PM (local time) - 4ft (1.2m), 13s period, W swell with 495 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 2AM (local time) - 2.5ft (0.7m), 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 Wednesday (Sep 02) at 2AM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.4m and 3s. 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 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 Saturday (Sep 05) at 11PM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Wed 2nd Sep)2.5ft (0.7m) 9s
Best Surf 2PM (Mon 7th Sep)3.5ft (1.1m) 14s
Most Powerful 5PM (Mon 7th Sep)4ft (1.2m) 13s

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


The Lowdown

Alright, Rusty here again. Let’s break down the next couple of weeks for Les Dunes.

Honestly, it’s a quiet period overall. There’s a long gap with nothing really worth getting wet for. The first decent window doesn’t come until early next month.

For this beginner-friendly beach break, the swell is mostly short-period windswell with messy wind. The water temp is about normal for this time of year.

Friday, 4th September morning is the first time conditions clean up. We get a light offshore breeze with 0.7m of W swell at 8 seconds. It’s surfable but nothing special.

Saturday, 5th September morning brings a gentle offshore breeze with 0.7m WNW swell at 9 seconds. The afternoon gets even better: light cross-offshore wind with 0.8m WNW swell and a longer 11-second period. That extra period gives the waves some push. This is the best bet in the whole window – clean, small, but rideable on a longer board. You might find a few others out there.

After Saturday, the wind turns onshore again and conditions go poor. The only other standout is Tuesday, 15th September morning: 1.1m W swell at 9 seconds with a light cross-shore breeze, but it’s flagged as too big for this break. Same story for Wednesday, 16th September morning – 1.3m W swell at 12 seconds, clean offshore wind, but again too big for Les Dunes.

So, if you’re keen, Saturday the 5th is your day. The rest is mostly a blank or out of reach.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Fri afternoon, min 17°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Sat night, min 17°C on Sat morning). Wind will be generally light.

Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
0
0
1
1
0
0
1
1
1
1
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)
0.7
W
9
0.5
W
8
0.4
WNW
8
0.4
WNW
8
0.7
WNW
8
0.7
W
8
0.7
W
8
0.7
W
8
0.8
WNW
8
0.7
W
8
0.7
WNW
9
0.8
WNW
11
0.7
WNW
12
0.6
W
11
0.5
W
10
1
W
5
0.9
W
15
1.2
W
13
1.2
W
12
Wave Graph
Metric surfscale
Energy kJ
78
34
22
19
60
57
63
64
96
69
84
150
145
83
48
42
343
495
393
Wind (km/h)
15
NNW
15
WNW
20
WNW
10
WNW
10
WSW
15
W
10
NNE
10
NNW
25
NW
20
N
15
NE
10
N
20
ENE
15
E
10
ENE
15
SSE
10
W
15
W
15
NW
Wind State
cross-off
cross
cross-on
cross
on
cross-on
cross-off
cross-off
cross
cross-off
off
cross-off
off
cross-off
cross-off
cross
cross-on
cross-on
cross
High Tide
8:07AM3.99m
8:27PM3.93m
8:47AM3.76m
9:14PM3.61m
9:40AM3.48m
10:23PM3.26m
11:13AM3.24m
00:45AM3.11m
1:32PM3.31m
2:26AM3.31m
2:51PM3.63m
3:29AM3.62m
Low Tide
2:24AM0.29m
2:44PM0.41m
3:09AM0.57m
3:34PM0.69m
4:02AM0.89m
4:35PM0.96m
5:09AM1.16m
5:52PM1.13m
6:29AM1.26m
7:18PM1.08m
7:51AM1.11m
8:35PM0.80m
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:26
7:28
7:30
7:31
7:31
7:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:46
8:45
8:43
8:40
8:39
8:37
8:36
 mm
Temp °C
18
18
18
18
19
20
20
21
23
21
19
26
27
23
25
26
20
21
19
Feels °C
17
16
15
16
20
20
20
21
21
20
18
24
24
20
23
23
21
21
17
  • Map Icons:
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  • 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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