Sea weather in Belle-Île-en-Mer in Brittany All the beach weather in Belle-Île-en-Mer

All the essential weather information for enjoying the beach in Belle-Île-en-Mer in Brittany, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.

Weather: When should you go to the beach in Belle-Île-en-Mer over the next 7 days?

Discover the best moment to go to the beach in Belle-Île-en-Mer in Brittany this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Belle-Île-en-Mer. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Sunday 14 December 202552°F to 56°Fdiscouraged
Monday 15 December 202556°F to 58°Fdiscouraged
Tuesday 16 December 202552°F to 56°Fdiscouraged
Wednesday 17 December 202550°F to 54°Fdiscouraged
Thursday 18 December 202554°F to 56°Fnot recommended
Friday 19 December 202552°F to 54°Fdiscouraged
Saturday 20 December 202543°F to 50°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Belle-Île-en-Mer

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 08:52 and will set at 17:23 on the beach(es) of Belle-Île-en-Mer. The outside temperature will be a high of 56°F t and a low of 52°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 19.9mph km/h (with gusts up to 28mph). Wave height will be up to 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (53°F)12°C (54°F)13°C (55°F)12°C (54°F)13°C (55°F)13°C (55°F)12°C (54°F)13°C (55°F)
Perceived temperature11°C (52°F)11°C (52°F)12°C (54°F)11°C (51°F)11°C (51°F)10°C (51°F)10°C (50°F)10°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%77%71%80%87%86%85%84%
Barometric pressure1027 hPa1025 hPa1024 hPa1023 hPa1022 hPa1019 hPa1017 hPa1016 hPa
Cloud cover67%83%15%5%74%28%26%60%
Heat index12°C (53°F)12°C (54°F)13°C (55°F)12°C (54°F)13°C (55°F)13°C (55°F)12°C (54°F)13°C (55°F)
Dew point9°C (48°F)8°C (47°F)7°C (45°F)9°C (48°F)11°C (51°F)10°C (51°F)10°C (50°F)10°C (51°F)
Wind
Speed9km/h (6mph)10km/h (6mph)6km/h (4mph)16km/h (10mph)23km/h (15mph)25km/h (15mph)27km/h (17mph)32km/h (20mph)
Gusts12km/h (8mph)14km/h (9mph)9km/h (5mph)22km/h (14mph)34km/h (21mph)38km/h (24mph)42km/h (26mph)45km/h (28mph)
Direction 124°
ESE
156°
SSE
178°
S
161°
SSE
159°
SSE
177°
S
166°
SSE
171°
S
Wind chill11°C (52°F)11°C (52°F)12°C (54°F)11°C (51°F)11°C (51°F)10°C (51°F)10°C (50°F)10°C (51°F)
Waves
Height1.9m (6.3ft)1.7m (5.7ft)1.6m (5.2ft)1.5m (4.9ft)1.4m (4.8ft)1.5m (4.9ft)1.6m (5.3ft)1.8m (5.9ft)
Direction 278°
W
278°
W
280°
W
282°
WNW
279°
W
280°
W
281°
W
281°
W
Period14.3 sec.14.0 sec.13.4 sec.13.2 sec.12.7 sec.12.5 sec.12.5 sec.12.7 sec.
Significant height0.3m (1ft)0.2m (0.7ft)0.1m (0.3ft)0.4m (1.3ft)0.7m (2.3ft)0.6m (2ft)0.7m (2.3ft)0.9m (3ft)
Sea water temperature
Water temperature11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 08:53 and will set at 17:23 on the beach(es) of Belle-Île-en-Mer. The outside temperature will be a high of 58°F t and a low of 56°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 20.5mph km/h (with gusts up to 29.2mph). Wave height will be up to 7.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (56°F)14°C (56°F)
Perceived temperature11°C (51°F)11°C (51°F)11°C (51°F)11°C (52°F)10°C (51°F)10°C (51°F)12°C (53°F)12°C (53°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity86%88%89%88%84%85%80%82%
Barometric pressure1014 hPa1011 hPa1009 hPa1008 hPa1008 hPa1006 hPa1005 hPa1004 hPa
Cloud cover60%31%23%16%79%86%97%70%
Heat index13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (56°F)14°C (56°F)
Dew point11°C (52°F)11°C (52°F)11°C (53°F)11°C (53°F)10°C (51°F)10°C (50°F)10°C (50°F)11°C (51°F)
Wind
Speed32km/h (20mph)33km/h (21mph)33km/h (21mph)32km/h (20mph)32km/h (20mph)27km/h (17mph)19km/h (12mph)23km/h (15mph)
Gusts45km/h (28mph)47km/h (29mph)46km/h (29mph)47km/h (29mph)32km/h (20mph)30km/h (19mph)32km/h (20mph)36km/h (23mph)
Direction 184°
S
189°
S
193°
SSW
187°
S
185°
S
174°
S
165°
SSE
166°
SSE
Wind chill11°C (51°F)11°C (51°F)11°C (51°F)11°C (52°F)10°C (51°F)10°C (51°F)12°C (53°F)12°C (53°F)
Waves
Height1.9m (6.4ft)2.1m (6.8ft)2.1m (6.9ft)2.1m (6.8ft)2.1m (6.9ft)2.1m (7.1ft)2.3m (7.4ft)2.4m (7.8ft)
Direction 277°
W
276°
W
275°
W
274°
W
273°
W
272°
W
271°
W
271°
W
Period13.6 sec.13.8 sec.13.7 sec.13.6 sec.13.5 sec.13.4 sec.13.3 sec.13.3 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)1.0m (3.3ft)0.9m (3ft)1.0m (3.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 08:54 and will set at 17:24 on the beach(es) of Belle-Île-en-Mer. The outside temperature will be a high of 56°F t and a low of 52°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 19.3mph km/h (with gusts up to 27.3mph). Wave height will be up to 7.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)13°C (55°F)13°C (55°F)12°C (54°F)12°C (54°F)12°C (53°F)11°C (51°F)11°C (52°F)
Perceived temperature11°C (53°F)13°C (55°F)12°C (53°F)11°C (51°F)11°C (51°F)9°C (48°F)8°C (46°F)8°C (46°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%82%84%86%80%84%82%79%
Barometric pressure1005 hPa1005 hPa1005 hPa1008 hPa1010 hPa1011 hPa1015 hPa1018 hPa
Cloud cover91%100%97%87%42%96%94%75%
Heat index13°C (55°F)13°C (55°F)13°C (55°F)12°C (54°F)12°C (54°F)12°C (53°F)11°C (51°F)11°C (52°F)
Dew point10°C (50°F)10°C (49°F)10°C (50°F)10°C (50°F)9°C (48°F)9°C (48°F)8°C (46°F)8°C (46°F)
Wind
Speed17km/h (11mph)6km/h (4mph)10km/h (6mph)16km/h (10mph)16km/h (10mph)27km/h (17mph)31km/h (19mph)30km/h (18mph)
Gusts25km/h (15mph)8km/h (5mph)15km/h (9mph)22km/h (14mph)23km/h (15mph)39km/h (24mph)44km/h (27mph)40km/h (25mph)
Direction 281°
W
356°
N
11°
N
296°
WNW
249°
WSW
355°
N
358°
N
354°
N
Wind chill11°C (53°F)13°C (55°F)12°C (53°F)11°C (51°F)11°C (51°F)9°C (48°F)8°C (46°F)8°C (46°F)
Waves
Height2.4m (7.8ft)2.3m (7.5ft)2.2m (7.3ft)2.1m (7.0ft)2.1m (6.9ft)2.1m (6.9ft)2.1m (6.8ft)1.9m (6.3ft)
Direction 271°
W
274°
W
275°
W
276°
W
276°
W
277°
W
276°
W
275°
W
Period13.3 sec.14.2 sec.14.2 sec.14.3 sec.14.4 sec.14.3 sec.14.3 sec.14.1 sec.
Significant height0.7m (2.3ft)0.1m (0.3ft)0.5m (1.6ft)0.6m (2ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 08:55 and will set at 17:24 on the beach(es) of Belle-Île-en-Mer. The outside temperature will be a high of 54°F t and a low of 50°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 15.5mph km/h (with gusts up to 21.1mph). Wave height will be up to 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (51°F)11°C (51°F)10°C (50°F)10°C (50°F)10°C (49°F)11°C (52°F)11°C (52°F)12°C (53°F)
Perceived temperature8°C (46°F)8°C (46°F)9°C (47°F)9°C (48°F)9°C (49°F)9°C (49°F)9°C (48°F)10°C (49°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%71%73%74%73%65%63%65%
Barometric pressure1020 hPa1021 hPa1022 hPa1024 hPa1025 hPa1024 hPa1024 hPa1024 hPa
Cloud cover28%0%4%13%14%40%49%22%
Heat index11°C (51°F)11°C (51°F)10°C (50°F)10°C (50°F)10°C (49°F)11°C (52°F)11°C (52°F)12°C (53°F)
Dew point7°C (45°F)6°C (42°F)6°C (42°F)6°C (42°F)5°C (41°F)5°C (40°F)4°C (40°F)5°C (42°F)
Wind
Speed25km/h (16mph)21km/h (13mph)12km/h (8mph)8km/h (5mph)6km/h (4mph)13km/h (8mph)20km/h (13mph)21km/h (13mph)
Gusts34km/h (21mph)28km/h (17mph)17km/h (10mph)11km/h (7mph)9km/h (6mph)19km/h (12mph)30km/h (19mph)30km/h (19mph)
Direction 355°
N
352°
N

N
358°
N
158°
SSE
221°
SW
217°
SW
203°
SSW
Wind chill8°C (46°F)8°C (46°F)9°C (47°F)9°C (48°F)9°C (49°F)9°C (49°F)9°C (48°F)10°C (49°F)
Waves
Height1.9m (6.1ft)1.8m (6.0ft)1.8m (6.0ft)1.8m (5.9ft)1.7m (5.7ft)1.6m (5.4ft)1.5m (5.0ft)1.4m (4.5ft)
Direction 274°
W
276°
W
275°
W
275°
W
275°
W
275°
W
277°
W
278°
W
Period14.1 sec.14.0 sec.13.8 sec.13.6 sec.13.4 sec.13.3 sec.12.9 sec.12.7 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.4m (1.3ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 08:55 and will set at 17:24 on the beach(es) of Belle-Île-en-Mer. The outside temperature will be a high of 56°F t and a low of 54°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! Be careful, the sea will be generally rough with a wind speed of up to 28mph km/h (with gusts up to 33.6mph). Wave height will be up to 12.8ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)12°C (54°F)12°C (54°F)13°C (55°F)13°C (55°F)13°C (56°F)13°C (55°F)12°C (54°F)
Perceived temperature10°C (49°F)9°C (49°F)9°C (48°F)10°C (49°F)10°C (50°F)10°C (50°F)10°C (49°F)9°C (49°F)
Precipitation0in0in0in0in0in0in0in0.1in
Humidity69%69%70%81%83%85%85%90%
Barometric pressure1023 hPa1022 hPa1019 hPa1017 hPa1015 hPa1013 hPa1013 hPa1013 hPa
Cloud cover50%35%11%100%86%56%90%100%
Heat index12°C (54°F)12°C (54°F)12°C (54°F)13°C (55°F)13°C (55°F)13°C (56°F)13°C (55°F)12°C (54°F)
Dew point7°C (44°F)7°C (44°F)7°C (44°F)9°C (49°F)10°C (50°F)11°C (51°F)11°C (51°F)11°C (51°F)
Wind
Speed26km/h (16mph)29km/h (18mph)36km/h (22mph)39km/h (24mph)40km/h (25mph)40km/h (25mph)45km/h (28mph)36km/h (23mph)
Gusts36km/h (22mph)39km/h (24mph)49km/h (30mph)54km/h (34mph)40km/h (25mph)44km/h (27mph)48km/h (30mph)45km/h (28mph)
Direction 193°
SSW
177°
S
171°
S
169°
SSE
180°
S
185°
S
201°
SSW
231°
SW
Wind chill10°C (49°F)9°C (49°F)9°C (48°F)10°C (49°F)10°C (50°F)10°C (50°F)10°C (49°F)9°C (49°F)
Waves
Height1.3m (4.2ft)1.8m (5.8ft)2.2m (7.4ft)2.9m (9.4ft)3.4m (11.3ft)3.8m (12.5ft)3.9m (12.8ft)3.9m (12.8ft)
Direction 278°
W
279°
W
266°
W
260°
W
258°
WSW
258°
WSW
259°
WSW
265°
W
Period12.6 sec.12.3 sec.14.1 sec.16.0 sec.17.8 sec.16.9 sec.16.0 sec.16.5 sec.
Significant height0.5m (1.6ft)0.7m (2.3ft)1.0m (3.3ft)1.3m (4.3ft)1.6m (5.2ft)1.6m (5.2ft)1.6m (5.2ft)1.5m (4.9ft)
Sea water temperature
Water temperature11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)13°C (56°F)13°C (56°F)13°C (56°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 08:56 and will set at 17:25 on the beach(es) of Belle-Île-en-Mer. The outside temperature will be a high of 54°F t and a low of 52°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 24.2mph km/h (with gusts up to 32.9mph). Wave height will be up to 21.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (53°F)12°C (53°F)12°C (54°F)12°C (53°F)11°C (52°F)11°C (51°F)11°C (51°F)11°C (51°F)
Perceived temperature8°C (47°F)9°C (48°F)9°C (49°F)9°C (48°F)8°C (47°F)7°C (45°F)7°C (45°F)7°C (45°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%74%65%63%59%66%70%73%
Barometric pressure1015 hPa1016 hPa1017 hPa1019 hPa1020 hPa1021 hPa1022 hPa1023 hPa
Cloud cover100%100%76%43%35%79%58%23%
Heat index11°C (53°F)12°C (53°F)12°C (54°F)12°C (53°F)11°C (52°F)11°C (51°F)11°C (51°F)11°C (51°F)
Dew point9°C (48°F)7°C (45°F)6°C (42°F)5°C (41°F)4°C (38°F)5°C (40°F)6°C (42°F)6°C (43°F)
Wind
Speed30km/h (19mph)30km/h (18mph)28km/h (17mph)29km/h (18mph)30km/h (19mph)38km/h (23mph)39km/h (24mph)32km/h (20mph)
Gusts41km/h (26mph)39km/h (24mph)38km/h (23mph)39km/h (24mph)42km/h (26mph)53km/h (33mph)47km/h (29mph)41km/h (26mph)
Direction 275°
W
274°
W
279°
W
278°
W
271°
W
270°
W
294°
WNW
324°
NW
Wind chill8°C (47°F)9°C (48°F)9°C (49°F)9°C (48°F)8°C (47°F)7°C (45°F)7°C (45°F)7°C (45°F)
Waves
Height3.8m (12.5ft)3.8m (12.5ft)4.0m (13.1ft)4.6m (15.1ft)5.9m (19.4ft)6.5m (21.3ft)6.0m (19.7ft)5.5m (18.0ft)
Direction 268°
W
267°
W
267°
W
252°
WSW
249°
WSW
251°
WSW
256°
WSW
260°
W
Period16.8 sec.16.5 sec.16.2 sec.15.8 sec.17.4 sec.17.5 sec.16.5 sec.15.8 sec.
Significant height1.5m (4.9ft)1.3m (4.3ft)1.3m (4.3ft)1.5m (4.9ft)1.5m (4.9ft)1.3m (4.3ft)1.2m (3.9ft)1.2m (3.9ft)
Sea water temperature
Water temperature13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 08:56 and will set at 17:25 on the beach(es) of Belle-Île-en-Mer. The outside temperature will be a high of 50°F t and a low of 43°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 15.5mph km/h (with gusts up to 21.1mph). Wave height will be up to 16.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (51°F)10°C (51°F)10°C (50°F)10°C (49°F)9°C (48°F)8°C (46°F)6°C (44°F)8°C (47°F)
Perceived temperature8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)7°C (45°F)6°C (43°F)4°C (39°F)6°C (42°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity75%74%72%71%71%70%68%69%
Barometric pressure1025 hPa1025 hPa1025 hPa1025 hPa1024 hPa1023 hPa1023 hPa1023 hPa
Cloud cover12%11%16%15%9%5%3%5%
Heat index10°C (51°F)10°C (51°F)10°C (50°F)10°C (49°F)9°C (48°F)8°C (46°F)6°C (44°F)8°C (47°F)
Dew point6°C (43°F)6°C (42°F)5°C (41°F)5°C (40°F)4°C (39°F)3°C (37°F)1°C (34°F)3°C (37°F)
Wind
Speed25km/h (16mph)18km/h (11mph)17km/h (10mph)14km/h (9mph)11km/h (7mph)9km/h (6mph)13km/h (8mph)15km/h (10mph)
Gusts34km/h (21mph)24km/h (15mph)22km/h (14mph)18km/h (11mph)16km/h (10mph)16km/h (10mph)26km/h (16mph)25km/h (15mph)
Direction 342°
NNW
348°
NNW
127°
SE
30°
NNE
53°
NE
62°
ENE
71°
ENE
81°
E
Wind chill8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)7°C (45°F)6°C (43°F)4°C (39°F)6°C (42°F)
Waves
Height5.1m (16.7ft)4.6m (15.1ft)4.1m (13.5ft)3.7m (12.1ft)3.4m (11.2ft)3.0m (9.8ft)2.7m (8.9ft)2.5m (8.2ft)
Direction 265°
W
268°
W
269°
W
272°
W
274°
W
275°
W
275°
W
277°
W
Period15.0 sec.14.5 sec.14.2 sec.13.5 sec.13.2 sec.13.1 sec.12.9 sec.12.5 sec.
Significant height1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)1.0m (3.3ft)0.6m (2ft)0.4m (1.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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