Les Dunes Surf Break

Lat Long: 46.56° N 1.84° W

Les Dunes Surf Forecast and Surf Report

Issued: 1 pm 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Les Dunes sea temperature is
20.2°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 27 Aug 2026:

  • Best quality surf: Saturday 29 Aug, 11PM (local time) - 6.5ft (2.0m), 8s period, WSW swell with cross-onshore winds.
  • Most powerful swell: Saturday 29 Aug, 5PM (local time) - 8ft (2.5m), 8s period, WSW swell with 935 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 8PM (local time) - 2.5ft (0.8m), 7s 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 27) at 8PM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.2m and 3s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Les Dunes in the next 16 days are 2.5m 8s and forecast to arrive on Saturday (Aug 29) at 5PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Sep 02) at 5AM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Thu 27th Aug)2.5ft (0.8m) 7s
Best Surf11PM (Sat 29th Aug)6.5ft (2.0m) 8s
Most Powerful 5PM (Sat 29th Aug)8ft (2.5m) 8s

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


The Lowdown

Alright folks, Rusty here. Let’s take a hard look at what Les Dunes has on offer over the next couple of weeks. I’ll be straight with you.

First off, don’t get your hopes up for the rest of this week or the start of next. We’ve got a grim run of poor conditions rolling in. Thursday the 27th kicks off with a tiny 2ft west swell and a cross-onshore southerly breeze, making for a choppy mess. Added to that, there’s a risk of thunderstorms in the air. The wave energy is weak, coming in at just 58. Not a single reason to paddle out.

Friday the 28th through to Monday the 31st doesn’t get any better. The swell builds but so does the wind. By Saturday the 29th we’re looking at a 7ft to 8ft west-southwest swell, but it’s being thrashed by strong onshore winds of 35 km/h. The combined energy jumps higher (589 to 935), but with poor surf conditions flagged every day and fresh onshore winds, it’s just a washing machine out there. This is beach-and-reef setup, and honestly, with that wind and chop, it looks more interesting for kite surfing than paddle surfing during this stretch.

Now, here’s where we get a sliver of hope. Tuesday the 1st of September, the morning shows some promise. The swell has dropped to a more manageable 4ft from the west, with a period of 10 seconds—a solid groundswell pulse. The wind is light, from the north-northwest at 15 km/h, giving us a cross-offshore breeze that should clean things right up. The combined energy is moderate at 235. This is the one standout in the whole forecast period. The forecast even notes wind and tide are favorable, though the swell might be a bit big for this break. For a confident, experienced surfer, Tuesday morning is your window. For beginners though, that 4ft west swell won’t be too intimidating, but be aware it’s a fairly consistent spot where crowds can show up sometimes.

After that brief highlight, we slide back into mediocrity. From Tuesday the 1st afternoon all the way through to Thursday the 10th of September, it's mostly small, weak, and onshore. There are some glassy moments on the 3rd and again on the morning of the 5th of September, but the swell is tiny—1ft to 2ft—and the wave energy is low, rarely cracking 100. You might find a knee-high ripple on the 5th morning with glassy conditions, but it’s not worth rushing for.

Finally, on Friday the 11th of September, we get another clean moment. Morning brings a 2ft west swell with a nice north-northeast offshore breeze at 20 km/h. It’s clean, but the energy is weak (98) and the surf is described as “very ordinary.” For a dedicated longboarder, it might be a fun little session, but nothing to write home about.

So, bottom line: if you’re after the best, circle Tuesday the 1st of September morning. That’s the only true standout—clean, moderate swell, and decent energy. Everything else is a bust or barely rideable. The gap from now until then is a long, frustrating wait of poor to terrible conditions.

Stay patient, keep an eye on the sky, and I’ll be here when it gets good.

Rusty.

Short Range Forecast

Moderate rain (total 13mm), heaviest on Thu afternoon. Warm (max 21°C on Thu afternoon, min 17°C on Fri morning). Winds increasing (calm on Thu night, fresh winds from the SW by Sat afternoon).

Days 5-7 Weather Summary

Mostly dry. Warm (max 20°C on Sun afternoon, min 16°C on Wed morning). Wind will be generally light.

Thu
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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
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
8
0.5
W
8
1.1
W
6
1.1
WSW
6
1.8
WSW
7
2.2
WSW
8
2.5
WSW
8
1.8
WSW
8
1.7
W
9
1.5
W
9
1.5
W
8
1.7
W
9
1.6
W
11
1.3
W
10
1.1
W
10
0.9
W
9
0.6
W
9
0.5
W
8
0.5
W
8
0.4
WNW
8
Wave Graph
Metric surfscale
Energy kJ
55
31
82
97
324
589
935
459
450
335
263
469
566
340
235
142
57
34
33
21
Wind (km/h)
15
S
10
SSW
25
W
25
WSW
30
SW
35
SW
35
WSW
15
WSW
15
WSW
30
WSW
30
WSW
20
WSW
20
W
10
NW
15
NNW
20
WNW
20
NNW
10
NNW
20
NW
10
NNE
Wind State
cross-on
cross-on
cross-on
on
on
on
on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
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
11:26PM0.27m
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
thunderstorm
thunderstorm
rain showers
clear
clear
part cloud
rain showers
part cloud
rain showers
part cloud
clear
clear
clear
part cloud
cloud
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
3
4
2
3
1
Temp °C
21
21
19
20
20
20
20
20
20
20
20
20
20
19
18
19
18
18
19
19
Feels °C
20
23
15
17
18
16
16
19
19
17
17
17
17
19
16
16
15
18
16
18
  • 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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