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
Friday 5 December 202552°F to 59°Fnot recommended
Saturday 6 December 202556°F to 58°Fnot recommended
Sunday 7 December 202558°F to 59°Fnot recommended
Monday 8 December 202558°F to 59°Fnot recommended
Tuesday 9 December 202558°F to 61°Fdiscouraged
Wednesday 10 December 202554°F to 59°Fdiscouraged
Thursday 11 December 202556°F to 56°Fdiscouraged

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

Sea weather on Friday 5 December 2025

On Friday 5 December 2025, the sun will rise at 08:44 and will set at 17:24 on the beach(es) of Belle-Île-en-Mer. The outside temperature will be a high of 59°F t and a low of 52°F. Precipitation is in the forecast (0.3in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 33.6mph km/h (with gusts up to 39.2mph). Wave height will be up to 11.8ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (53°F)12°C (53°F)12°C (54°F)12°C (54°F)11°C (53°F)13°C (55°F)14°C (58°F)14°C (57°F)
Perceived temperature9°C (48°F)9°C (49°F)10°C (50°F)10°C (49°F)8°C (46°F)9°C (48°F)12°C (53°F)11°C (52°F)
Precipitation0in0in0in0in0in0.1in0.2in0in
Humidity56%54%54%59%86%92%91%80%
Barometric pressure1009 hPa1010 hPa1010 hPa1009 hPa1008 hPa1003 hPa1002 hPa1004 hPa
Cloud cover72%84%78%100%100%100%97%78%
Heat index12°C (53°F)12°C (53°F)12°C (54°F)12°C (54°F)11°C (53°F)13°C (55°F)14°C (58°F)14°C (57°F)
Dew point3°C (38°F)3°C (37°F)3°C (37°F)5°C (40°F)9°C (48°F)11°C (52°F)13°C (55°F)11°C (51°F)
Wind
Speed27km/h (17mph)21km/h (13mph)19km/h (12mph)30km/h (18mph)46km/h (29mph)54km/h (34mph)42km/h (26mph)47km/h (29mph)
Gusts36km/h (22mph)28km/h (17mph)26km/h (16mph)39km/h (24mph)63km/h (39mph)57km/h (35mph)48km/h (30mph)48km/h (30mph)
Direction 318°
NW
295°
WNW
246°
WSW
212°
SSW
184°
S
191°
S
236°
WSW
258°
WSW
Wind chill9°C (48°F)9°C (49°F)10°C (50°F)10°C (49°F)8°C (46°F)9°C (48°F)12°C (53°F)11°C (52°F)
Waves
Height2.9m (9.4ft)2.8m (9.2ft)2.8m (9.2ft)2.8m (9.2ft)2.8m (9.2ft)3.0m (9.9ft)3.1m (10.2ft)3.6m (11.7ft)
Direction 281°
W
280°
W
280°
W
279°
W
277°
W
274°
W
274°
W
253°
WSW
Period12.7 sec.13.3 sec.13.9 sec.14.7 sec.15.1 sec.16.2 sec.16.1 sec.8.8 sec.
Significant height1.1m (3.6ft)0.7m (2.3ft)0.4m (1.3ft)0.7m (2.3ft)1.4m (4.6ft)2.1m (6.9ft)1.6m (5.2ft)1.6m (5.2ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Saturday 6 December 2025

On Saturday 6 December 2025, the sun will rise at 08:45 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! Be careful, the sea will be generally rough with a wind speed of up to 34.2mph km/h (with gusts up to 36.7mph). Wave height will be up to 14.1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (57°F)14°C (57°F)13°C (56°F)14°C (56°F)13°C (56°F)13°C (56°F)13°C (55°F)14°C (57°F)
Perceived temperature11°C (52°F)11°C (51°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)11°C (52°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity75%72%77%73%80%80%80%84%
Barometric pressure1005 hPa1005 hPa1007 hPa1009 hPa1010 hPa1010 hPa1011 hPa1012 hPa
Cloud cover55%81%70%88%79%88%76%70%
Heat index14°C (57°F)14°C (57°F)13°C (56°F)14°C (56°F)13°C (56°F)13°C (56°F)13°C (55°F)14°C (57°F)
Dew point9°C (49°F)9°C (48°F)9°C (49°F)9°C (48°F)10°C (50°F)10°C (50°F)10°C (49°F)11°C (52°F)
Wind
Speed47km/h (29mph)55km/h (34mph)54km/h (34mph)55km/h (34mph)46km/h (29mph)46km/h (28mph)37km/h (23mph)37km/h (23mph)
Gusts53km/h (33mph)56km/h (35mph)59km/h (37mph)56km/h (35mph)47km/h (29mph)53km/h (33mph)43km/h (27mph)54km/h (34mph)
Direction 255°
WSW
256°
WSW
261°
W
262°
W
257°
WSW
262°
W
249°
WSW
242°
WSW
Wind chill11°C (52°F)11°C (51°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)11°C (52°F)
Waves
Height3.6m (11.8ft)3.8m (12.4ft)4.0m (13.0ft)4.2m (13.7ft)4.3m (14.2ft)4.3m (14.0ft)4.1m (13.4ft)3.9m (12.7ft)
Direction 261°
W
261°
W
278°
W
277°
W
272°
W
270°
W
270°
W
269°
W
Period15.2 sec.10.0 sec.12.0 sec.13.7 sec.14.8 sec.15.3 sec.15.7 sec.15.6 sec.
Significant height1.6m (5.2ft)1.8m (5.9ft)1.8m (5.9ft)1.7m (5.6ft)1.5m (4.9ft)1.5m (4.9ft)1.1m (3.6ft)1.3m (4.3ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Sunday 7 December 2025

On Sunday 7 December 2025, the sun will rise at 08:46 and will set at 17:23 on the beach(es) of Belle-Île-en-Mer. The outside temperature will be a high of 59°F t and a low of 58°F. Precipitation is in the forecast (0.2in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 40.4mph km/h (with gusts up to 42.9mph). Wave height will be up to 16.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (57°F)15°C (58°F)15°C (58°F)15°C (59°F)14°C (58°F)14°C (58°F)14°C (58°F)14°C (58°F)
Perceived temperature12°C (53°F)12°C (54°F)12°C (53°F)12°C (54°F)11°C (52°F)11°C (52°F)11°C (52°F)12°C (53°F)
Precipitation0in0.1in0.1in0in0in0in0in0in
Humidity90%94%92%86%90%89%90%93%
Barometric pressure1011 hPa1010 hPa1009 hPa1009 hPa1010 hPa1010 hPa1011 hPa1012 hPa
Cloud cover71%100%100%100%100%100%100%100%
Heat index14°C (57°F)15°C (58°F)15°C (58°F)15°C (59°F)14°C (58°F)14°C (58°F)14°C (58°F)14°C (58°F)
Dew point12°C (54°F)14°C (57°F)13°C (56°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (56°F)
Wind
Speed29km/h (18mph)39km/h (24mph)50km/h (31mph)62km/h (38mph)61km/h (38mph)65km/h (40mph)58km/h (36mph)49km/h (30mph)
Gusts41km/h (25mph)43km/h (26mph)55km/h (34mph)69km/h (43mph)67km/h (42mph)66km/h (41mph)58km/h (36mph)52km/h (32mph)
Direction 220°
SW
244°
WSW
226°
SW
240°
WSW
236°
WSW
242°
WSW
240°
WSW
236°
SW
Wind chill12°C (53°F)12°C (54°F)12°C (53°F)12°C (54°F)11°C (52°F)11°C (52°F)11°C (52°F)12°C (53°F)
Waves
Height3.6m (11.9ft)3.4m (11.3ft)3.7m (12.1ft)3.9m (12.8ft)4.4m (14.5ft)5.1m (16.7ft)5.0m (16.4ft)4.9m (16.2ft)
Direction 269°
W
269°
W
268°
W
271°
W
252°
WSW
256°
WSW
260°
W
258°
WSW
Period15.5 sec.15.3 sec.14.7 sec.14.2 sec.9.5 sec.10.7 sec.11.5 sec.11.6 sec.
Significant height1.0m (3.3ft)1.4m (4.6ft)1.8m (5.9ft)2.1m (6.9ft)2.2m (7.2ft)2.5m (8.2ft)2.1m (6.9ft)2.1m (6.9ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Monday 8 December 2025

On Monday 8 December 2025, the sun will rise at 08:47 and will set at 17:23 on the beach(es) of Belle-Île-en-Mer. The outside temperature will be a high of 59°F t and a low of 58°F. Precipitation is in the forecast (0.2in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 37.3mph km/h (with gusts up to 41mph). Wave height will be up to 14.8ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature15°C (59°F)15°C (59°F)14°C (57°F)14°C (57°F)14°C (56°F)14°C (58°F)14°C (57°F)14°C (58°F)
Perceived temperature12°C (54°F)12°C (54°F)11°C (51°F)10°C (51°F)10°C (50°F)11°C (53°F)11°C (52°F)12°C (53°F)
Precipitation0in0in0.1in0in0in0in0in0in
Humidity87%88%94%89%85%80%84%80%
Barometric pressure1013 hPa1013 hPa1013 hPa1014 hPa1014 hPa1013 hPa1014 hPa1014 hPa
Cloud cover100%100%100%100%100%100%100%100%
Heat index15°C (59°F)15°C (59°F)14°C (57°F)14°C (57°F)14°C (56°F)14°C (58°F)14°C (57°F)14°C (58°F)
Dew point13°C (55°F)13°C (55°F)13°C (55°F)12°C (53°F)11°C (52°F)11°C (51°F)11°C (52°F)11°C (52°F)
Wind
Speed47km/h (29mph)49km/h (30mph)54km/h (33mph)57km/h (35mph)60km/h (38mph)48km/h (30mph)45km/h (28mph)46km/h (29mph)
Gusts52km/h (32mph)55km/h (34mph)55km/h (34mph)63km/h (39mph)66km/h (41mph)54km/h (33mph)48km/h (30mph)52km/h (32mph)
Direction 234°
SW
237°
WSW
223°
SW
215°
SW
210°
SSW
219°
SW
212°
SSW
210°
SSW
Wind chill12°C (54°F)12°C (54°F)11°C (51°F)10°C (51°F)10°C (50°F)11°C (53°F)11°C (52°F)12°C (53°F)
Waves
Height4.5m (14.9ft)4.3m (14.1ft)4.1m (13.4ft)4.0m (13.0ft)3.7m (12.3ft)3.5m (11.6ft)3.6m (11.8ft)3.5m (11.6ft)
Direction 257°
WSW
256°
WSW
255°
WSW
255°
WSW
254°
WSW
252°
WSW
252°
WSW
261°
W
Period11.7 sec.11.6 sec.11.6 sec.23.5 sec.21.9 sec.20.4 sec.19.2 sec.11.5 sec.
Significant height1.9m (6.2ft)1.7m (5.6ft)1.7m (5.6ft)1.6m (5.2ft)1.4m (4.6ft)1.7m (5.6ft)1.4m (4.6ft)0.9m (3ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Tuesday 9 December 2025

On Tuesday 9 December 2025, the sun will rise at 08:48 and will set at 17:23 on the beach(es) of Belle-Île-en-Mer. The outside temperature will be a high of 61°F t and a low of 58°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 24.9mph km/h (with gusts up to 29.2mph). Wave height will be up to 12.1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (58°F)15°C (59°F)15°C (58°F)15°C (58°F)14°C (58°F)15°C (59°F)15°C (59°F)16°C (60°F)
Perceived temperature12°C (53°F)13°C (55°F)12°C (54°F)12°C (54°F)12°C (53°F)13°C (55°F)13°C (55°F)15°C (58°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%80%86%85%81%77%77%73%
Barometric pressure1014 hPa1012 hPa1011 hPa1009 hPa1009 hPa1008 hPa1007 hPa1008 hPa
Cloud cover100%74%100%78%45%81%97%68%
Heat index14°C (58°F)15°C (59°F)15°C (58°F)15°C (58°F)14°C (58°F)15°C (59°F)15°C (59°F)16°C (60°F)
Dew point12°C (53°F)12°C (53°F)12°C (54°F)12°C (54°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (51°F)
Wind
Speed40km/h (25mph)30km/h (19mph)38km/h (23mph)39km/h (24mph)39km/h (24mph)40km/h (25mph)39km/h (24mph)38km/h (23mph)
Gusts47km/h (29mph)31km/h (19mph)39km/h (24mph)43km/h (27mph)46km/h (28mph)41km/h (26mph)40km/h (25mph)39km/h (24mph)
Direction 205°
SSW
182°
S
188°
S
174°
S
179°
S
184°
S
186°
S
209°
SSW
Wind chill12°C (53°F)13°C (55°F)12°C (54°F)12°C (54°F)12°C (53°F)13°C (55°F)13°C (55°F)15°C (58°F)
Waves
Height3.5m (11.4ft)3.7m (12.0ft)3.6m (11.9ft)3.7m (12.1ft)3.7m (12.2ft)3.7m (12.1ft)3.6m (11.8ft)3.5m (11.5ft)
Direction 261°
W
258°
WSW
257°
WSW
257°
WSW
257°
WSW
260°
W
261°
W
263°
W
Period17.6 sec.17.6 sec.17.5 sec.17.4 sec.17.1 sec.16.4 sec.15.7 sec.15.0 sec.
Significant height1.5m (4.9ft)1.0m (3.3ft)1.2m (3.9ft)1.4m (4.6ft)1.4m (4.6ft)1.3m (4.3ft)1.2m (3.9ft)1.1m (3.6ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)14°C (57°F)14°C (57°F)14°C (57°F)

Sea weather on Wednesday 10 December 2025

On Wednesday 10 December 2025, the sun will rise at 08:49 and will set at 17:23 on the beach(es) of Belle-Île-en-Mer. The outside temperature will be a high of 59°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! The sea will be generally calm, with a wind speed of up to 23mph km/h (with gusts up to 28.6mph). Wave height will be up to 14.8ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature15°C (60°F)14°C (58°F)14°C (56°F)13°C (56°F)13°C (55°F)12°C (54°F)12°C (54°F)13°C (55°F)
Perceived temperature15°C (60°F)13°C (55°F)11°C (52°F)11°C (51°F)10°C (49°F)9°C (49°F)9°C (49°F)11°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%81%87%86%80%77%74%73%
Barometric pressure1007 hPa1007 hPa1008 hPa1011 hPa1014 hPa1016 hPa1019 hPa1020 hPa
Cloud cover48%73%96%100%36%9%10%9%
Heat index15°C (60°F)14°C (58°F)14°C (56°F)13°C (56°F)13°C (55°F)12°C (54°F)12°C (54°F)13°C (55°F)
Dew point11°C (52°F)11°C (52°F)12°C (53°F)11°C (52°F)9°C (48°F)8°C (47°F)8°C (46°F)8°C (46°F)
Wind
Speed29km/h (18mph)37km/h (23mph)33km/h (21mph)32km/h (20mph)35km/h (21mph)33km/h (21mph)27km/h (17mph)22km/h (13mph)
Gusts40km/h (25mph)46km/h (29mph)43km/h (27mph)44km/h (28mph)40km/h (25mph)35km/h (21mph)32km/h (20mph)30km/h (18mph)
Direction 224°
SW
225°
SW
256°
WSW
264°
W
265°
W
268°
W
266°
W
251°
WSW
Wind chill15°C (60°F)13°C (55°F)11°C (52°F)11°C (51°F)10°C (49°F)9°C (49°F)9°C (49°F)11°C (51°F)
Waves
Height3.7m (12.1ft)4.0m (13.1ft)4.4m (14.4ft)4.5m (14.8ft)4.4m (14.4ft)4.4m (14.4ft)4.1m (13.5ft)3.6m (11.8ft)
Direction 260°
W
256°
WSW
256°
WSW
256°
WSW
256°
WSW
257°
WSW
257°
WSW
261°
W
Period14.5 sec.14.1 sec.14.6 sec.15.1 sec.14.7 sec.14.6 sec.14.2 sec.13.4 sec.
Significant height0.8m (2.6ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)
Sea water temperature
Water temperature14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)

Sea weather on Thursday 11 December 2025

On Thursday 11 December 2025, the sun will rise at 08:50 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 19.3mph km/h (with gusts up to 28.6mph). Wave height will be up to 11.5ft 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 (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (56°F)
Perceived temperature11°C (52°F)11°C (52°F)11°C (52°F)11°C (51°F)10°C (50°F)10°C (51°F)10°C (51°F)11°C (52°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity74%74%75%77%79%84%87%87%
Barometric pressure1021 hPa1021 hPa1020 hPa1019 hPa1019 hPa1018 hPa1017 hPa1017 hPa
Cloud cover16%18%32%35%30%45%33%18%
Heat index13°C (56°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (56°F)
Dew point9°C (47°F)9°C (47°F)9°C (48°F)9°C (48°F)9°C (49°F)10°C (50°F)11°C (51°F)11°C (52°F)
Wind
Speed21km/h (13mph)23km/h (14mph)25km/h (15mph)31km/h (19mph)31km/h (19mph)30km/h (18mph)26km/h (16mph)24km/h (15mph)
Gusts30km/h (19mph)32km/h (20mph)34km/h (21mph)42km/h (26mph)46km/h (29mph)45km/h (28mph)42km/h (26mph)37km/h (23mph)
Direction 225°
SW
199°
SSW
187°
S
172°
S
169°
S
168°
SSE
168°
SSE
175°
S
Wind chill11°C (52°F)11°C (52°F)11°C (52°F)11°C (51°F)10°C (50°F)10°C (51°F)10°C (51°F)11°C (52°F)
Waves
Height3.2m (10.5ft)3.0m (9.8ft)2.9m (9.5ft)2.9m (9.5ft)3.1m (10.2ft)3.5m (11.5ft)3.5m (11.5ft)3.4m (11.2ft)
Direction 262°
W
264°
W
265°
W
264°
W
266°
W
265°
W
265°
W
265°
W
Period12.9 sec.12.3 sec.12.0 sec.11.8 sec.11.3 sec.11.2 sec.11.6 sec.11.9 sec.
Significant height0.8m (2.6ft)1.0m (3.3ft)1.2m (3.9ft)1.4m (4.6ft)1.4m (4.6ft)1.3m (4.3ft)1.0m (3.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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