Belle Ile surfForecast / Brittany – Morbihan / France

information circle12 Day Weather and Surf, issued 6 am Saturday 20 Dec 2025 CET
Forecast update in hr  min  s Forecast update imminent
Belle Ile surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Belle Ile sea temperature is
13.4° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Belle Ile this week:

The surf forecast for Belle Ile over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Dec 21) at 1AM. The primary swell is predicted to be 3.0m and 12s period with a secondary swell of 0.7m and 16s. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Belle Ile in the next 12 days are 3.5m 15s and forecast to arrive on Sunday (Dec 21) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 5s period and expected on Friday (Dec 26) at 1PM.

Wave TypeTime (CET) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sun 21st Dec)10ft (3.0m) 12s
Best Surf 1AM (Sun 21st Dec)10ft (3.0m) 12s
Most Powerful10AM (Sun 21st Dec)11ft (3.5m) 15s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 22mm), heaviest during Sat night. Very mild (max 12°C on Sat morning, min 9°C on Mon night). Winds decreasing (strong winds from the S on Sat morning, light winds from the ENE by Mon night).

Days 3-6 Weather Summary Mostly dry. Icy conditions (max 11°C on Tue morning, min 0°C on Wed night). Winds decreasing (near gales from the ENE on Wed afternoon, light winds from the NE by Thu night).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
0
!
!
!
!
4
4
1
1
0
0
0
0
0
0
0
1
0
0
1
Swell
Height Map
Wave Height (m) & direction (?)
2.5
W
2.5
WSW
3
W
3.5
W
3.5
W
3
W
2.5
W
2.1
W
1.7
W
1.4
WNW
1.2
WNW
1.2
WNW
1.5
WNW
0.9
W
1.2
WNW
0.9
WNW
0.7
WNW
0.6
WNW
0.6
W
0.6
W
0.8
W
Period(s) (?)141412151516151413121111131614131212121213
Wave
Graph
(?)Metric surfscale
Energy kJ (?)27912148241257135517488626651779957560370313703461605282155115101108222
Wind
(km/h)
30
SSE
35
SSW
25
S
25
ENE
30
ESE
20
ENE
25
ESE
20
ESE
25
NE
25
NNE
40
N
35
NNE
40
NE
45
ENE
50
ENE
45
NE
40
NE
10
NE
30
E
30
E
25
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
on
crosscross-
off
offcross-
off
offoffcross-
off
cross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffoff
High Tide
/ height (m)
4:53PM
3.70
5:08AM
3.92
5:27PM
3.72
5:42AM
3.94
6:01PM
3.69
6:17AM
3.93
6:36PM
3.63
6:53AM
3.88
7:14PM
3.56
7:32AM
3.80
7:56PM
3.47
8:15AM
3.70
8:44PM
3.37
Low Tide
/ height (m)
10:51AM
0.57
11:04PM
0.62
11:29AM
0.54
11:40PM
0.60
12:06PM
0.55
12:16AM
0.62
12:44PM
0.59
12:54AM
0.67
1:23PM
0.65
1:33AM
0.75
2:05PM
0.72
2:17AM
0.85
2:52PM
0.79
3:07AM
0.95
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Sunrise8:56--8:56--8:56--8:56--8:57--8:57--8:57--
Sunset-5:23--5:23--5:24--5:24--5:25--5:27--5:27-
rain showers
light rain
light rain
light rain
light rain
rain showers
light rain
cloud
light rain
part cloud
part cloud
cloud
cloud
cloud
clear
clear
clear
part cloud
clear
clear
part cloud
Rain (mm)
1455321-1------------
Temp. °C12121212111111101011119675132011
Feels °C (?)447547656531-3-4-7-11-8-6-9-7-6
  • 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 Surf forecast

The above surf forecast table for Belle Ile 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 can be found by selecting the local surf guide option on the grey menu. Our Belle Ile 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) 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 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 is 48 km (30 miles) from the city of Ploemeur. If you plan a holiday in Morbihan - Brittany, look for hotels and other accommodation in Ploemeur. Ploemeur has rooms for a wide range of budgets as well as car hire and transport links.

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