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Surf Forecasts:

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

information circle12 Day Weather and Surf, issued 12 am Sunday 11 Jan 2026 CET
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
10.5° C
 (Which is 1.3°C colder than average for this time of year)

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

The surf forecast for Belle Ile - Les Donnants over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jan 14) at 10AM. The primary swell is predicted to be 3.0m and 11s period with a secondary swell of 0.4m and 6s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Belle Ile - Les Donnants in the next 12 days are 4.0m 15s and forecast to arrive on Saturday (Jan 17) at 1AM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (CET) & Date Wave Height & Period
Next good surf (1 star+)10AM (Wed 14th Jan)10ft (3.0m) 11s
Best Surf10AM (Wed 14th Jan)10ft (3.0m) 11s
Most Powerful 1AM (Sat 17th Jan)13ft (4.0m) 15s

Table - best surf conditions forecast for Belle Ile - Les Donnants over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 29mm), heaviest during Mon morning. Very mild (max 14°C on Mon morning, min 10°C on Sat night). Winds increasing (calm on Sat night, near gales from the SSW by Mon morning).

Days 3-6 Weather Summary Heavy rain (total 23mm), heaviest during Thu afternoon. Very mild (max 11°C on Wed afternoon, min 8°C on Tue night). Winds increasing (light winds from the NW on Wed morning, near gales from the W by Thu night).

Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Sat
17
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
3
0
0
0
0
0
0
0
0
1
!
0
0
!
!
0
0
0
0
0
!
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.1
W
1.8
SW
3
SW
4
WSW
4.5
WSW
4.5
WSW
3.5
WSW
2.2
W
3
WSW
2.4
W
3
W
2.5
W
3.5
WSW
3
WSW
3
WSW
3.5
W
3
W
3.5
W
4
W
3.5
W
3.5
W
Period(s) (?)116910111211111112111181010171616151514
Wave
Graph
(?)Metric surfscale
Energy kJ (?)11472171509325453234782328712142344154317931512140915881832590644815521799857394306
Wind
(km/h)
15
S
45
S
50
SSW
45
SW
60
SSW
40
SW
35
SSW
40
S
25
SW
35
N
5
NW
25
SW
50
SW
10
SSW
20
SW
55
W
40
WSW
45
WSW
35
W
25
NNW
15
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscross-
on		cross-
on		cross-
on		cross-
on		crosscross-
on		crosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		oncross-
on		ononcross-
on		cross-
on
High Tide
/ height (m)
10:15AM
3.15
10:55PM
2.99
11:27AM
2.97
12:16AM
2.95
12:53PM
2.93
1:31AM
3.04
2:03PM
3.03
2:28AM
3.21
2:54PM
3.19
3:13AM
3.42
3:35PM
3.38
3:51AM
3.63
4:11PM
3.56
Low Tide
/ height (m)
4:13AM
1.19
4:46PM
1.23
5:15AM
1.35
5:48PM
1.36
6:23AM
1.41
6:54PM
1.38
7:30AM
1.34
7:55PM
1.29
8:28AM
1.18
8:47PM
1.12
9:17AM
0.98
9:32PM
0.92
9:59AM
0.77
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Sat
17
Sunrise-8:56--8:56--8:56--8:56--8:55--8:55--8:53-
Sunset--5:43--5:45--5:45--5:46--5:49--5:50--5:51
part cloud
light rain
light rain
mod rain
mod rain
light rain
mod rain
cloud
light rain
rain showers
part cloud
cloud
light rain
cloud
mod rain
rain showers
thunderstorm
thunderstorm
thunderstorm
clear
clear
Rain (mm)
-326736-24--3-66225--
Temp. °C111113131412131312991111111110101010910
Feels °C (?)623334768353387110136
  • 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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View detailed surf forecast for Belle Ile - Les Donnants at:
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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 12 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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