Belle Ile - Les Donnants surfForecast / Brittany – Morbihan / France

information circle16 Day Weather and Surf, issued 7 pm Monday 01 Jun 2026 CEST
Forecast update in hr  min  s Forecast update imminent
Belle Ile - Les Donnants surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Belle Ile - Les Donnants sea temperature is
19.8° C
(Which is 4.8°C warmer than normal for this time of year)

Belle Ile - Les Donnants surf forecast from 1 Jun 2026:

  • Best quality surf: Friday 5 Jun, 11AM (local time) - 10ft (3.0m), 12s period, W swell with onshore winds.
  • Most powerful swell: Thursday 4 Jun, 5PM (local time) - 11ft (3.5m), 12s period, W swell with 3,740 kJ wave energy.
  • Next surfable swell (1★+): Friday 5 Jun, 11AM (local time) - 10ft (3.0m), 12s period with W swell.

Best Forecast Surf Conditions for Belle Ile - Les Donnants this week:

The surf forecast for Belle Ile - Les Donnants over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jun 05) at 11AM. The primary swell is predicted to be 3.0m and 12s period. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at Belle Ile - Les Donnants in the next 16 days are 3.5m 12s and forecast to arrive on Thursday (Jun 04) at 5PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Fri 5th Jun)10ft (3.0m) 12s
Best Surf11AM (Fri 5th Jun)10ft (3.0m) 12s
Most Powerful 5PM (Thu 4th Jun)11ft (3.5m) 12s

Table - best surf conditions forecast for Belle Ile - Les Donnants over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 8mm), mostly falling on Mon night. Very mild (max 17°C on Mon night, min 15°C on Thu morning). Winds increasing (moderate winds from the SW on Mon night, near gales from the WSW by Wed night).

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Thu night. Very mild (max 17°C on Sat afternoon, min 14°C on Fri night). Winds decreasing (near gales from the W on Sat night, light winds from the W by Sun afternoon).

Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
Sunday
7
Mon
8
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
!
1
0
0
0
0
2
0
1
2
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
WSW
10
2.3
W
7
2.5
W
8
2.4
W
9
2.5
W
10
3
W
8
3.5
W
9
4
W
11
3.5
W
12
3.5
W
12
3
W
12
2.4
W
12
1.9
W
11
2.3
W
8
3
W
9
3
W
12
2.3
W
11
2
W
11
1.7
W
11
1.5
W
10
1.3
W
10
Wave Graph
Metric surfscale
Energy kJ
680
554
786
942
1330
1451
2130
3428
3740
3330
2254
1602
890
681
1331
2416
1257
934
651
489
354
Wind (km/h)
40
WSW
40
W
45
W
30
W
45
SW
45
WSW
55
WSW
55
W
50
W
40
WNW
20
W
20
SW
25
SSW
45
S
50
W
40
WNW
15
NW
15
W
15
NW
5
NW
15
W
cross-on
on
on
on
cross-on
on
on
on
on
on
on
cross-on
cross-on
cross
on
cross-on
cross-on
on
cross-on
glassy
on
High Tide
6:30AM3.67m
6:44PM3.84m
7:04AM3.59m
7:20PM3.77m
7:40AM3.48m
7:57PM3.67m
8:18AM3.36m
8:38PM3.56m
9:01AM3.24m
9:23PM3.45m
9:52AM3.16m
10:15PM3.38m
10:51AM3.12m
Low Tide
00:32AM0.58m
12:45PM0.68m
1:11AM0.65m
1:23PM0.77m
1:51AM0.76m
2:02PM0.87m
2:32AM0.88m
2:43PM0.99m
3:16AM0.99m
3:28PM1.09m
4:05AM1.06m
4:19PM1.17m
4:59AM1.07m
5:17PM1.20m
rain showers
part cloud
part cloud
part cloud
cloud
light rain
rain showers
cloud
rain showers
rain showers
part cloud
part cloud
light rain
light rain
rain showers
part cloud
cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:18
6:18
6:18
6:18
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
10:00
10:00
10:01
10:02
10:04
10:05
10:06
10:06
4
2
1
1
1
1
2
1
Temp °C
17
16
16
16
16
17
17
16
16
15
15
15
16
16
17
16
14
15
15
15
16
13
8
8
8
9
10
10
6
6
5
9
10
11
8
11
6
10
13
12
15
14
Swell 1
Height (m)
Direction
Period (s)
3
W
12
2.4
W
12
1.9
W
11
1.1
S
6
0.2
WSW
14
3
W
12
2.3
W
11
2
W
11
1.7
W
11
1.5
W
10
1.3
W
10
Energy kJ
2254
1602
890
91
20
2416
1257
934
651
489
354
Swell 2
Height (m)
Direction
Period (s)
0.8
SW
7
Energy kJ
54
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
1.8
WSW
10
2.3
W
7
2.5
W
8
2.4
W
9
2.5
W
10
3
W
8
3.5
W
9
4
W
11
3.5
W
12
3.5
W
12
0.8
SSW
4
2.3
W
8
3
W
9
Energy kJ
680
554
786
942
1330
1451
2130
3428
3740
3330
21
681
1331
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
3
1
2
1
3
4
1
4
4
2
1
1
3
3
3
2
2
3
Distance (km)
202
380
435
156
348
426
429
435
435
308
44
101
119
167
369
328
36
93
32
0
90
Best forecast wave conditions in Morbihan - Brittany
Rating
(10 max)
4
3
2
2
Best forecast wave conditions in France
Rating
(10 max)
1
1
3
2
2
2
2
1
4
4
4
4
3
1
3
4
3
3
2
3
Header Global
Rating
(10 max)
5
6
4
5
5
5
5
4
5
6
5
9
9
7
8
9
8
9
7
8
9
  • 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 Belle Ile - Les Donnants Surf forecast

The above surf forecast table for Belle Ile - Les Donnants provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Belle Ile - Les Donnants can be found by selecting the local surf guide option on the grey menu. Our Belle Ile - Les Donnants 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 (Belle Ile - Les Donnants) 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 Belle Ile - Les Donnants 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.

Belle Ile - Les Donnants is 48 km (30 miles) from Lorient. If you plan a holiday in Morbihan - Brittany, look for hotels and other accommodation in Lorient. Lorient has rooms for a wide range of budgets as well as car hire and transport links.

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