Les Dunes Surf Break

Lat Long: 46.56° N 1.84° W

Les Dunes Surf Forecast and Surf Report

Issued: 7 am 18 Sep 2026 (local time)

Forecast update in  hr  min

Today's Les Dunes sea temperature is
20.4°C
1.5° 

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 18 Sep 2026:

  • Best quality surf: Friday 18 Sep, 2PM (local time) - 4.5ft (1.3m), 16s period, W swell with cross-onshore winds.
  • Most powerful swell: Friday 18 Sep, 2PM (local time) - 4.5ft (1.3m), 16s period, W swell with 847 kJ wave energy.
  • Next surfable swell (1★+): Friday 18 Sep, 2PM (local time) - 4.5ft (1.3m), 16s 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 Friday (Sep 18) at 2PM. The primary swell is predicted to be 1.3m and 16s period. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Les Dunes in the next 16 days are 1.3m 16s and forecast to arrive on Friday (Sep 18) at 2PM. 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 20) at 8PM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Fri 18th Sep)4.5ft (1.3m) 16s
Best Surf 2PM (Fri 18th Sep)4.5ft (1.3m) 16s
Most Powerful 2PM (Fri 18th Sep)4.5ft (1.3m) 16s

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


Short Range Forecast

Mostly dry. Warm (max 24°C on Sun afternoon, min 13°C on Fri morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 30°C on Wed afternoon, min 19°C on Mon morning). Wind will be generally light.

Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
!
!
1
0
2
1
0
2
1
1
1
0
0
1
1
2
!
1
1
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
16
1.3
W
16
1.1
W
14
0.9
WNW
12
0.8
WNW
12
0.9
WNW
11
0.9
WNW
11
0.9
WNW
11
0.9
WNW
11
0.8
WNW
11
0.8
WNW
11
0.7
WNW
12
0.6
W
12
0.5
W
11
0.6
W
11
0.7
W
11
0.7
W
16
1.1
W
13
0.9
W
12
0.8
W
12
0.7
W
11
Wave Graph
Metric surfscale
Energy kJ
248
826
447
244
186
205
198
198
202
161
167
145
98
59
88
119
231
413
243
184
116
Wind (km/h)
10
NNW
20
WNW
10
NW
5
WSW
15
WNW
15
N
10
NNE
20
NW
20
NE
20
ENE
15
NNE
20
ENE
25
ENE
20
ENE
20
ENE
25
ENE
20
NE
20
NE
20
E
5
NNE
20
E
Wind State
cross-off
cross
cross
on
cross-on
cross-off
off
cross
off
off
off
off
cross-off
off
off
off
off
off
cross-off
glassy
cross-off
High Tide
9:00AM3.24m
9:25PM2.95m
9:55AM2.95m
11:15PM2.69m
1:07PM2.85m
2:07AM2.81m
2:28PM3.07m
3:01AM3.07m
3:14PM3.37m
3:38AM3.36m
3:48PM3.67m
4:09AM3.64m
4:18PM3.96m
4:37AM3.91m
Low Tide
4:10PM1.33m
4:34AM1.53m
5:17PM1.58m
5:49AM1.70m
6:42PM1.63m
7:14AM1.63m
8:01PM1.44m
8:23AM1.38m
8:58PM1.12m
9:13AM1.04m
9:41PM0.77m
9:54AM0.70m
10:18PM0.43m
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:48
7:48
7:50
7:52
7:52
7:54
7:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:14
8:12
8:09
8:07
8:06
8:04
8:01
 mm
Temp °C
15
17
17
17
18
17
17
24
24
20
29
28
20
29
28
21
30
29
22
28
29
Feels °C
13
14
15
17
17
16
17
21
20
18
27
25
14
25
24
17
26
25
19
26
26
  • 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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