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
Monday 15 December 202556°F to 56°Fdiscouraged
Tuesday 16 December 202550°F to 56°Fdiscouraged
Wednesday 17 December 202549°F to 54°Fdiscouraged
Thursday 18 December 202554°F to 56°Fnot recommended
Friday 19 December 202550°F to 54°Fnot recommended
Saturday 20 December 202552°F to 54°Fnot recommended
Sunday 21 December 202549°F to 52°Fdiscouraged

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

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 56°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 19.9mph km/h (with gusts up to 28.6mph). 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 (55°F)13°C (56°F)13°C (56°F)13°C (56°F)
Perceived temperature11°C (51°F)11°C (51°F)11°C (51°F)11°C (51°F)10°C (51°F)11°C (52°F)11°C (52°F)11°C (52°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%86%88%88%85%80%83%80%
Barometric pressure1014 hPa1012 hPa1009 hPa1008 hPa1008 hPa1005 hPa1004 hPa1005 hPa
Cloud cover91%53%18%15%89%78%100%100%
Heat index13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (56°F)13°C (56°F)13°C (56°F)
Dew point10°C (50°F)11°C (51°F)11°C (52°F)11°C (52°F)10°C (51°F)10°C (50°F)10°C (51°F)10°C (50°F)
Wind
Speed32km/h (20mph)30km/h (18mph)32km/h (20mph)29km/h (18mph)28km/h (17mph)22km/h (14mph)21km/h (13mph)24km/h (15mph)
Gusts45km/h (28mph)41km/h (26mph)44km/h (27mph)42km/h (26mph)46km/h (28mph)36km/h (22mph)33km/h (21mph)35km/h (22mph)
Direction 199°
SSW
192°
SSW
193°
SSW
192°
SSW
184°
S
175°
S
191°
SSW
195°
SSW
Wind chill11°C (51°F)11°C (51°F)11°C (51°F)11°C (51°F)10°C (51°F)11°C (52°F)11°C (52°F)11°C (52°F)
Waves
Height2.1m (6.8ft)2.1m (7.0ft)2.2m (7.1ft)2.2m (7.1ft)2.2m (7.2ft)2.2m (7.4ft)2.3m (7.7ft)2.4m (8.0ft)
Direction 277°
W
275°
W
274°
W
273°
W
272°
W
271°
W
270°
W
269°
W
Period13.3 sec.13.8 sec.13.8 sec.13.7 sec.13.5 sec.13.4 sec.13.3 sec.13.3 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)0.9m (3ft)0.8m (2.6ft)0.6m (2ft)0.5m (1.6ft)0.6m (2ft)
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 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 22.4mph km/h (with gusts up to 32.3mph). Wave height will be up to 8.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (56°F)12°C (54°F)12°C (54°F)12°C (53°F)11°C (51°F)10°C (51°F)11°C (51°F)11°C (51°F)
Perceived temperature11°C (53°F)11°C (53°F)12°C (53°F)10°C (49°F)7°C (44°F)7°C (45°F)7°C (45°F)7°C (45°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%85%84%89%87%80%72%73%
Barometric pressure1005 hPa1005 hPa1006 hPa1008 hPa1012 hPa1013 hPa1016 hPa1018 hPa
Cloud cover100%100%100%100%100%100%33%10%
Heat index13°C (56°F)12°C (54°F)12°C (54°F)12°C (53°F)11°C (51°F)10°C (51°F)11°C (51°F)11°C (51°F)
Dew point10°C (50°F)10°C (50°F)10°C (49°F)10°C (50°F)8°C (47°F)7°C (45°F)6°C (43°F)6°C (43°F)
Wind
Speed20km/h (13mph)9km/h (6mph)8km/h (5mph)22km/h (13mph)36km/h (22mph)31km/h (19mph)35km/h (21mph)29km/h (18mph)
Gusts29km/h (18mph)13km/h (8mph)11km/h (7mph)30km/h (18mph)49km/h (30mph)42km/h (26mph)52km/h (32mph)39km/h (24mph)
Direction 216°
SW
184°
S
91°
E

N

N
14°
NNE
358°
N

N
Wind chill11°C (53°F)11°C (53°F)12°C (53°F)10°C (49°F)7°C (44°F)7°C (45°F)7°C (45°F)7°C (45°F)
Waves
Height2.6m (8.4ft)2.6m (8.6ft)2.5m (8.2ft)2.4m (7.9ft)2.3m (7.5ft)2.2m (7.2ft)2.2m (7.1ft)2.1m (6.9ft)
Direction 269°
W
271°
W
273°
W
275°
W
275°
W
276°
W
276°
W
275°
W
Period13.4 sec.13.8 sec.13.8 sec.13.7 sec.13.9 sec.14.1 sec.14.1 sec.14.1 sec.
Significant height0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)1.2m (3.9ft)0.3m (1ft)0.5m (1.6ft)1.1m (3.6ft)0.9m (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 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 49°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 20.5mph). Wave height will be up to 6.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (51°F)10°C (50°F)10°C (50°F)10°C (50°F)9°C (48°F)10°C (50°F)10°C (51°F)12°C (53°F)
Perceived temperature7°C (45°F)8°C (46°F)8°C (46°F)9°C (47°F)9°C (48°F)9°C (48°F)8°C (47°F)9°C (48°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity73%75%77%74%71%70%69%69%
Barometric pressure1020 hPa1021 hPa1022 hPa1024 hPa1024 hPa1023 hPa1022 hPa1022 hPa
Cloud cover7%2%0%4%7%33%24%44%
Heat index10°C (51°F)10°C (50°F)10°C (50°F)10°C (50°F)9°C (48°F)10°C (50°F)10°C (51°F)12°C (53°F)
Dew point6°C (42°F)6°C (43°F)6°C (43°F)5°C (42°F)4°C (39°F)5°C (40°F)5°C (41°F)6°C (43°F)
Wind
Speed25km/h (15mph)20km/h (12mph)16km/h (10mph)9km/h (6mph)4km/h (2mph)9km/h (5mph)17km/h (11mph)23km/h (14mph)
Gusts33km/h (21mph)26km/h (16mph)22km/h (14mph)12km/h (8mph)6km/h (4mph)13km/h (8mph)26km/h (16mph)32km/h (20mph)
Direction 10°
N

N
357°
N

N
81°
E
187°
S
193°
SSW
195°
SSW
Wind chill7°C (45°F)8°C (46°F)8°C (46°F)9°C (47°F)9°C (48°F)9°C (48°F)8°C (47°F)9°C (48°F)
Waves
Height2.0m (6.6ft)2.0m (6.4ft)2.0m (6.4ft)2.0m (6.5ft)1.9m (6.4ft)1.8m (6.1ft)1.7m (5.6ft)1.6m (5.1ft)
Direction 274°
W
273°
W
275°
W
275°
W
274°
W
274°
W
274°
W
276°
W
Period14.1 sec.14.1 sec.13.9 sec.13.9 sec.13.7 sec.13.5 sec.13.3 sec.13.0 sec.
Significant height0.8m (2.6ft)0.7m (2.3ft)0.4m (1.3ft)0.3m (1ft)0.1m (0.3ft)0.2m (0.7ft)0.3m (1ft)0.5m (1.6ft)
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 38.5mph km/h (with gusts up to 39.2mph). Wave height will be up to 11.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)12°C (54°F)13°C (55°F)13°C (55°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (56°F)
Perceived temperature9°C (49°F)9°C (49°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)9°C (47°F)10°C (50°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity69%72%81%87%87%85%88%85%
Barometric pressure1021 hPa1018 hPa1016 hPa1012 hPa1010 hPa1008 hPa1008 hPa1010 hPa
Cloud cover31%23%79%52%69%93%100%77%
Heat index12°C (54°F)12°C (54°F)13°C (55°F)13°C (55°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (56°F)
Dew point7°C (44°F)7°C (45°F)10°C (49°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (51°F)11°C (51°F)
Wind
Speed27km/h (17mph)32km/h (20mph)37km/h (23mph)41km/h (26mph)44km/h (27mph)48km/h (30mph)62km/h (39mph)42km/h (26mph)
Gusts37km/h (23mph)44km/h (27mph)51km/h (32mph)58km/h (36mph)50km/h (31mph)50km/h (31mph)63km/h (39mph)47km/h (29mph)
Direction 207°
SSW
184°
S
183°
S
177°
S
180°
S
193°
SSW
210°
SSW
244°
WSW
Wind chill9°C (49°F)9°C (49°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)9°C (47°F)10°C (50°F)
Waves
Height1.4m (4.7ft)1.5m (4.9ft)1.8m (5.8ft)2.4m (7.7ft)2.9m (9.5ft)3.1m (10.3ft)3.2m (10.5ft)3.5m (11.5ft)
Direction 277°
W
278°
W
279°
W
260°
W
261°
W
263°
W
262°
W
262°
W
Period12.8 sec.12.6 sec.12.5 sec.12.5 sec.20.4 sec.19.4 sec.18.7 sec.18.5 sec.
Significant height0.6m (2ft)0.8m (2.6ft)1.3m (4.3ft)1.3m (4.3ft)1.4m (4.6ft)1.3m (4.3ft)1.4m (4.6ft)1.8m (5.9ft)
Sea water temperature
Water temperature11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°F)11°C (53°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 50°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 26.1mph km/h (with gusts up to 34.8mph). Wave height will be up to 16.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)12°C (54°F)11°C (52°F)11°C (52°F)11°C (51°F)10°C (50°F)10°C (50°F)11°C (51°F)
Perceived temperature9°C (48°F)9°C (48°F)8°C (46°F)10°C (50°F)10°C (50°F)9°C (47°F)9°C (47°F)9°C (49°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity71%69%63%58%60%64%62%62%
Barometric pressure1012 hPa1014 hPa1016 hPa1019 hPa1022 hPa1022 hPa1022 hPa1023 hPa
Cloud cover100%61%20%77%87%27%21%21%
Heat index12°C (54°F)12°C (54°F)11°C (52°F)11°C (52°F)11°C (51°F)10°C (50°F)10°C (50°F)11°C (51°F)
Dew point7°C (45°F)7°C (44°F)4°C (40°F)3°C (38°F)3°C (38°F)4°C (39°F)3°C (38°F)4°C (39°F)
Wind
Speed42km/h (26mph)37km/h (23mph)31km/h (19mph)12km/h (7mph)8km/h (5mph)12km/h (8mph)12km/h (8mph)13km/h (8mph)
Gusts56km/h (35mph)50km/h (31mph)41km/h (26mph)16km/h (10mph)12km/h (7mph)19km/h (12mph)19km/h (12mph)18km/h (11mph)
Direction 259°
W
282°
WNW
334°
NNW
329°
NNW
295°
WNW
282°
WNW
272°
W
245°
WSW
Wind chill9°C (48°F)9°C (48°F)8°C (46°F)10°C (50°F)10°C (50°F)9°C (47°F)9°C (47°F)9°C (49°F)
Waves
Height3.5m (11.5ft)4.2m (13.6ft)4.8m (15.8ft)5.1m (16.8ft)5.0m (16.4ft)4.7m (15.4ft)4.3m (14.1ft)3.9m (12.8ft)
Direction 265°
W
267°
W
261°
W
257°
WSW
261°
W
263°
W
264°
W
266°
W
Period17.5 sec.16.7 sec.17.0 sec.17.2 sec.16.7 sec.16.1 sec.15.7 sec.15.5 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)0.6m (2ft)0.8m (2.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)14°C (56°F)14°C (56°F)14°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 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! Be careful, the sea will be generally rough with a wind speed of up to 26.1mph km/h (with gusts up to 32.9mph). Wave height will be up to 11.8ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (52°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (53°F)12°C (53°F)12°C (53°F)
Perceived temperature10°C (49°F)9°C (49°F)9°C (48°F)8°C (47°F)8°C (46°F)8°C (46°F)8°C (47°F)8°C (47°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity64%64%65%64%63%65%70%71%
Barometric pressure1022 hPa1021 hPa1019 hPa1018 hPa1016 hPa1013 hPa1010 hPa1008 hPa
Cloud cover25%33%48%45%42%81%100%64%
Heat index11°C (52°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (53°F)12°C (53°F)12°C (53°F)
Dew point4°C (40°F)5°C (40°F)5°C (40°F)5°C (40°F)4°C (40°F)5°C (41°F)6°C (44°F)7°C (44°F)
Wind
Speed12km/h (8mph)14km/h (9mph)20km/h (13mph)27km/h (17mph)31km/h (19mph)36km/h (22mph)40km/h (25mph)42km/h (26mph)
Gusts17km/h (11mph)19km/h (12mph)27km/h (17mph)36km/h (22mph)44km/h (27mph)51km/h (32mph)45km/h (28mph)53km/h (33mph)
Direction 243°
WSW
226°
SW
210°
SSW
212°
SSW
207°
SSW
202°
SSW
197°
SSW
196°
SSW
Wind chill10°C (49°F)9°C (49°F)9°C (48°F)8°C (47°F)8°C (46°F)8°C (46°F)8°C (47°F)8°C (47°F)
Waves
Height3.6m (11.8ft)3.3m (10.8ft)3.0m (9.8ft)2.8m (9.2ft)2.6m (8.5ft)2.5m (8.2ft)2.3m (7.5ft)2.1m (6.9ft)
Direction 269°
W
271°
W
272°
W
274°
W
275°
W
276°
W
277°
W
277°
W
Period15.0 sec.14.6 sec.14.4 sec.14.2 sec.13.8 sec.13.4 sec.13.2 sec.13.0 sec.
Significant height0.9m (3ft)0.9m (3ft)1.0m (3.3ft)0.8m (2.6ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)
Sea water temperature
Water temperature14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)

Sea weather on Sunday 21 December 2025

On Sunday 21 December 2025, the sun will rise at 08:57 and will set at 17:26 on the beach(es) of Belle-Île-en-Mer. The outside temperature will be a high of 52°F t and a low of 49°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 23.6mph km/h (with gusts up to 31.7mph). Wave height will be up to 7.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (53°F)10°C (50°F)9°C (48°F)10°C (49°F)10°C (51°F)11°C (51°F)10°C (51°F)10°C (50°F)
Perceived temperature8°C (47°F)6°C (43°F)6°C (42°F)7°C (45°F)8°C (47°F)8°C (47°F)8°C (46°F)8°C (47°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%81%77%70%63%61%70%74%
Barometric pressure1007 hPa1007 hPa1008 hPa1008 hPa1008 hPa1007 hPa1007 hPa1008 hPa
Cloud cover82%100%98%63%30%28%65%53%
Heat index12°C (53°F)10°C (50°F)9°C (48°F)10°C (49°F)10°C (51°F)11°C (51°F)10°C (51°F)10°C (50°F)
Dew point7°C (45°F)7°C (44°F)5°C (42°F)5°C (40°F)4°C (38°F)4°C (38°F)5°C (41°F)6°C (42°F)
Wind
Speed38km/h (24mph)36km/h (22mph)26km/h (16mph)18km/h (11mph)15km/h (10mph)20km/h (13mph)20km/h (12mph)14km/h (9mph)
Gusts51km/h (32mph)46km/h (28mph)33km/h (21mph)24km/h (15mph)22km/h (14mph)31km/h (19mph)30km/h (18mph)20km/h (12mph)
Direction 195°
SSW
275°
W
319°
NW
317°
NW
279°
W
253°
WSW
261°
W
297°
WNW
Wind chill8°C (47°F)6°C (43°F)6°C (42°F)7°C (45°F)8°C (47°F)8°C (47°F)8°C (46°F)8°C (47°F)
Waves
Height2.0m (6.6ft)2.0m (6.6ft)2.1m (6.9ft)2.2m (7.2ft)2.3m (7.5ft)2.3m (7.5ft)2.2m (7.2ft)2.1m (6.9ft)
Direction 278°
W
278°
W
279°
W
281°
WNW
283°
WNW
284°
WNW
285°
WNW
284°
WNW
Period12.7 sec.12.1 sec.12.0 sec.12.1 sec.12.0 sec.12.0 sec.11.9 sec.11.8 sec.
Significant height0.8m (2.6ft)0.9m (3ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

Change units