Les Dunes Surf Break

Lat Long: 46.56° N 1.84° W

Les Dunes Surf Forecast and Surf Report

Issued: 1 am 06 Aug 2026 (local time)

Forecast update in  hr  min

Today's Les Dunes sea temperature is
20.6° 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 6 Aug 2026:

  • Best quality surf: Thursday 6 Aug, 11AM (local time) - 2.5ft (0.8m), 7s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Thursday 13 Aug, 5AM (local time) - 2.5ft (0.8m), 9s period, W swell with 108 kJ wave energy.
  • Next surfable swell (1★+): Thursday 6 Aug, 11AM (local time) - 2.5ft (0.8m), 7s 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 Thursday (Aug 06) at 11AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.2m and 10s. 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 0.8m 9s and forecast to arrive on Thursday (Aug 13) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Friday (Aug 07) at 8PM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Thu 6th Aug)2.5ft (0.8m) 7s
Best Surf11AM (Thu 6th Aug)2.5ft (0.8m) 7s
Most Powerful 5AM (Thu 13th Aug)2.5ft (0.8m) 9s

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


The Lowdown

Alright, Rusty here, giving you the straight talk on the sand.

Let’s be honest, the next 16 days at Les Dunes are a bit of a drought. We’re looking at a long stretch of ankle-biters and messy conditions. It’s a full week of barely anything before we see a little pulse. The first real chance to get wet is Thursday morning, the 13th of August. After that, there’s another gap of nothing much until the 18th of August. It’s a quiet spell.

The one true standout, the only date I’d circle, is the morning of Wednesday, the 12th of August. The water is sitting around 69°F, which is pretty normal for this time of year. At Les Dunes, we’ve got a tiny 1ft swell from the west, but the wind is glassy, dead calm. That’s a magical, rare moment of perfection. The clean, flat surface will make the most of that little push. The swell period is a long 11 seconds, so it’ll have some push, but at that size it’s just a nice, clean, easy paddle for the beginners.

Then, on Thursday the 13th of August, the energy picks up. The morning shows a 3ft groundswell from the west, with a period of 9 seconds and a combined energy of 167 (moderate). The wind is light and cross-shore, making it a bit bumpy but surfable. The afternoon is similar in size, but the wind turns onshore, so it’s not as clean.

Your next real shot is the morning of Tuesday the 18th of August. We get a 3ft swell from the west-northwest, with a period of 8 seconds and a combined energy of 112 (moderate). The wind is a clean cross-offshore from the north-northwest, so it’ll be holding the waves up. It’s a bit more raw, but the conditions will be clean and fun for a longboard or a fish.

The days in between are a tough mix of onshore wind, chop, and tiny waves. The afternoons of the 14th and 17th of August have a little more size (3ft), but with fresh onshore wind, it’ll be a messy, lumpy session. The 14th has a combined energy of 194 (moderate), but the quality is just not there.

For the second week, it’s quieter again. The mornings of the 20th and 21st of August have a clean look with cross-offshore winds, but the swell is back down to 1ft to 2ft – just not enough to get the heart pumping.

The bottom line: if you can, the glassy morning of the 12th is the true, hidden gem. The 13th and 18th mornings offer the most size and reasonable conditions. Don’t get suckered by the bigger numbers later on; the wind is going to wreck it. This is a patience game, plain and simple.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 29°C on Sat afternoon, min 15°C on Thu morning). Winds decreasing (fresh winds from the WNW on Thu afternoon, light winds from the NNW by Fri afternoon).

Days 4-6 Weather Summary

Some drizzle, heaviest during Sun night. Warm (max 25°C on Sun afternoon, min 20°C on Sun night). Wind will be generally light.

Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
AM
PM
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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
7
0.9
WNW
4
0.7
NW
5
0.4
WNW
6
0.2
W
9
0.2
W
9
0.2
W
9
0.1
W
9
0.2
WNW
10
0.3
WNW
10
0.3
WNW
9
0.2
WNW
9
0.3
WNW
9
0.3
WNW
9
0.4
NW
8
0.4
WNW
6
0.2
WNW
8
0.2
W
10
0.4
W
11
0.6
W
10
0.7
W
9
Wave Graph
Metric surfscale
Energy kJ
59
23
23
14
7
7
7
2
10
18
17
8
16
15
18
12
6
7
37
69
83
Wind (km/h)
15
N
30
WNW
25
NE
20
NE
20
NW
25
NE
15
ESE
15
W
5
WNW
10
W
15
W
5
WNW
10
W
15
WSW
10
W
10
WSW
15
W
10
NW
5
N
20
WNW
15
N
Wind State
cross-off
cross
off
off
cross
off
cross-off
cross-on
cross
cross-on
cross-on
cross
cross-on
on
cross-on
on
cross-on
cross
glassy
cross-on
cross-off
High Tide
10:11AM3.47m
10:45PM3.43m
11:29AM3.32m
00:24AM3.28m
1:18PM3.35m
2:12AM3.37m
2:46PM3.59m
3:27AM3.62m
3:51PM3.93m
4:24AM3.90m
4:43PM4.27m
5:13AM4.13m
5:29PM4.52m
Low Tide
4:56PM0.94m
5:30AM1.01m
6:06PM1.05m
6:43AM1.10m
7:25PM1.00m
8:00AM1.00m
8:40PM0.77m
9:08AM0.75m
9:45PM0.44m
10:06AM0.44m
10:39PM0.11m
10:57AM0.14m
11:27PM-0.14m
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
rain showers
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:52
6:54
6:54
6:56
6:58
6:58
7:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:31
9:30
9:29
9:27
9:25
9:23
9:22
 mm
1
Temp °C
18
21
20
21
27
27
26
29
27
24
25
22
21
22
21
21
22
21
22
26
25
Feels °C
16
15
15
16
22
21
21
25
23
23
23
20
21
20
20
21
21
20
22
24
22
  • 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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