Les Dunes Surf Break

Lat Long: 46.56° N 1.84° W

Les Dunes Surf Forecast and Surf Report

Issued: 1 am 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Les Dunes sea temperature is
20.4°C
0.2° 

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 27 Aug 2026:

  • Best quality surf: Tuesday 1 Sep, 2AM (local time) - 4.5ft (1.4m), 10s period, W swell with cross-onshore winds.
  • Most powerful swell: Saturday 29 Aug, 8PM (local time) - 7.5ft (2.3m), 8s period, WSW swell with 740 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 1 Sep, 2AM (local time) - 4.5ft (1.4m), 10s 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 Tuesday (Sep 01) at 2AM. The primary swell is predicted to be 1.4m and 10s 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 2.3m 8s and forecast to arrive on Saturday (Aug 29) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Sep 02) at 2AM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 1st Sep)4.5ft (1.4m) 10s
Best Surf 2AM (Tue 1st Sep)4.5ft (1.4m) 10s
Most Powerful 8PM (Sat 29th Aug)7.5ft (2.3m) 8s

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


The Lowdown

Alright, Rusty here. Let's have a look at what's on the cards for the next couple of weeks.

Honestly, it's a bit of a tough stretch ahead. The first week or so is looking pretty grim, with a lot of onshore and cross-onshore wind trashing the waves. The water temperature is sitting at 69°F and that's about average for the time of year, so at least you won't be freezing while you're sitting there waiting for something decent.

The only real standout in this whole forecast is a window that opens up around the 1st of September. On Tuesday morning, the wind goes glassy from the NNW, with a 4ft swell from the west at 10 seconds. The combined energy is moderate at 220. It's a beginner-friendly break, Les Dunes, and it's exposed to the swell, so that westerly groundswell should wrap in. The guidance says it's a good option, but the waves might be on the bigger side for a learner. Mind you, the rest of that day and the following days are pretty ordinary again.

There's another flicker of hope on the 9th of September, with a moderate offshore wind from the NE blowing clean. The swell jumps up to 5ft from the WSW, but with a short period of 5 seconds, it's going to be a bit weak and messy. Still, it's offshore and clean, so it might be worth a look if you're desperate. The combined energy is moderate at 144. The following day, the 10th, also has clean offshore winds in the morning, with a 4ft swell from the WNW at 9 seconds, giving a moderate energy of 365. But again, the guidance suggests it might be too big for this break.

After that, things pretty much dry up again. There's a lot of "poor surf conditions" and "too big for this break" messages. It's a real mixed bag, and honestly, for a solid week there's not much to get excited about.

So, to cut a long story short, your best bet is the morning of Tuesday the 1st of September. If you're keen, get out there early for some clean, glassy waves. The 9th and 10th of September offer some promise but come with a caveat on the swell size. The rest of the time, you might be better off checking the forecast again in a few days.

Rusty.

Short Range Forecast

Moderate rain (total 10mm), heaviest on Thu night. Warm (max 22°C on Thu afternoon, min 17°C on Fri morning). Winds increasing (calm on Thu morning, fresh winds from the SW by Sat afternoon).

Days 4-6 Weather Summary

Some drizzle, heaviest during Sun night. Warm (max 20°C on Sun morning, min 16°C on Tue night). Winds decreasing (fresh winds from the SW on Sun night, calm by Tue morning).

Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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
0
0
0
!
!
0
0
1
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
8
0.7
W
8
0.5
W
8
1
W
8
1.1
W
6
1
WSW
6
1.7
WSW
6
2.4
WSW
8
1.8
WSW
8
1.5
W
9
1.7
W
9
1.6
W
8
1.9
W
9
1.7
W
9
1.4
W
10
1.1
W
10
0.9
W
9
0.7
W
9
0.7
WNW
8
0.5
W
8
0.4
WNW
8
Wave Graph
Metric surfscale
Energy kJ
12
55
31
110
91
75
227
657
459
359
502
287
575
501
377
220
130
76
72
34
20
Wind (km/h)
5
W
10
SW
5
SW
25
W
25
W
25
SSW
30
SW
35
SW
20
WSW
20
SW
25
WSW
30
SW
20
W
20
W
10
WNW
5
NNW
20
WNW
20
NW
15
NNW
25
NW
15
NNE
Wind State
cross-on
on
on
cross-on
cross-on
cross-on
on
on
on
on
on
on
cross-on
cross-on
cross-on
glassy
cross
cross-off
cross-off
cross
cross-off
High Tide
5:21PM4.14m
5:38AM3.99m
5:48PM4.31m
6:05AM4.13m
6:16PM4.41m
6:32AM4.20m
6:45PM4.42m
7:01AM4.21m
7:15PM4.35m
7:32AM4.14m
7:48PM4.18m
8:07AM3.99m
8:27PM3.93m
Low Tide
11:02AM0.46m
11:26PM0.27m
11:37AM0.24m
00:00AM0.09m
12:11PM0.10m
00:33AM-0.01m
12:46PM0.04m
1:08AM-0.01m
1:22PM0.07m
1:45AM0.09m
2:01PM0.20m
2:24AM0.29m
2:44PM0.41m
3:09AM0.57m
cloud
thunderstorm
rain showers
thunderstorm
clear
part cloud
cloud
rain showers
rain showers
part cloud
part cloud
rain showers
clear
clear
clear
cloud
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:20
7:20
7:22
7:22
7:24
7:26
7:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:57
8:54
8:52
8:51
8:49
8:46
8:45
 mm
2
3
3
1
1
1
Temp °C
21
22
21
18
20
20
20
20
20
20
20
20
19
20
19
18
19
18
18
20
19
Feels °C
21
20
20
15
17
17
16
15
18
18
18
18
16
17
18
19
18
15
17
18
16
  • 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
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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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