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. | Max wind | Our opinion | Details |
|---|---|---|---|---|
| Sunday 14 December 2025 | 52°F to 56°F | 19.9mph | discouraged | all the sea weather |
| Monday 15 December 2025 | 56°F to 58°F | 14.3mph | discouraged | all the sea weather |
| Tuesday 16 December 2025 | 52°F to 56°F | 18.6mph | discouraged | all the sea weather |
| Wednesday 17 December 2025 | 50°F to 54°F | 13.1mph | discouraged | all the sea weather |
| Thursday 18 December 2025 | 54°F to 56°F | 22.4mph | not recommended | all the sea weather |
| Friday 19 December 2025 | 52°F to 54°F | 19.9mph | discouraged | all the sea weather |
| Saturday 20 December 2025 | 43°F to 50°F | 9.3mph | discouraged | all the sea weather |
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.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
| Outside temperature | 12°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 temperature | 11°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) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 82% | 77% | 71% | 80% | 87% | 86% | 85% | 84% |
| Barometric pressure | 1027 hPa | 1025 hPa | 1024 hPa | 1023 hPa | 1022 hPa | 1019 hPa | 1017 hPa | 1016 hPa |
| Cloud cover | 67% | 83% | 15% | 5% | 74% | 28% | 26% | 60% |
| Heat index | 12°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 point | 9°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 | ||||||||
| Speed | 9km/h (6mph) | 10km/h (6mph) | 6km/h (4mph) | 16km/h (10mph) | 23km/h (15mph) | 25km/h (15mph) | 27km/h (17mph) | 32km/h (20mph) |
| Gusts | 12km/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 chill | 11°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 | ||||||||
| Height | 1.9m (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 |
| Period | 14.3 sec. | 14.0 sec. | 13.4 sec. | 13.2 sec. | 12.7 sec. | 12.5 sec. | 12.5 sec. | 12.7 sec. |
| Significant height | 0.3m (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 temperature | 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) | 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.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
| Outside temperature | 13°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 temperature | 11°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) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 86% | 88% | 89% | 88% | 84% | 85% | 80% | 82% |
| Barometric pressure | 1014 hPa | 1011 hPa | 1009 hPa | 1008 hPa | 1008 hPa | 1006 hPa | 1005 hPa | 1004 hPa |
| Cloud cover | 60% | 31% | 23% | 16% | 79% | 86% | 97% | 70% |
| Heat index | 13°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 point | 11°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 | ||||||||
| Speed | 32km/h (20mph) | 33km/h (21mph) | 33km/h (21mph) | 32km/h (20mph) | 32km/h (20mph) | 27km/h (17mph) | 19km/h (12mph) | 23km/h (15mph) |
| Gusts | 45km/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 chill | 11°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 | ||||||||
| Height | 1.9m (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 |
| Period | 13.6 sec. | 13.8 sec. | 13.7 sec. | 13.6 sec. | 13.5 sec. | 13.4 sec. | 13.3 sec. | 13.3 sec. |
| Significant height | 1.0m (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 temperature | 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) | 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.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
| Outside temperature | 13°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 temperature | 11°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) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 81% | 82% | 84% | 86% | 80% | 84% | 82% | 79% |
| Barometric pressure | 1005 hPa | 1005 hPa | 1005 hPa | 1008 hPa | 1010 hPa | 1011 hPa | 1015 hPa | 1018 hPa |
| Cloud cover | 91% | 100% | 97% | 87% | 42% | 96% | 94% | 75% |
| Heat index | 13°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 point | 10°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 | ||||||||
| Speed | 17km/h (11mph) | 6km/h (4mph) | 10km/h (6mph) | 16km/h (10mph) | 16km/h (10mph) | 27km/h (17mph) | 31km/h (19mph) | 30km/h (18mph) |
| Gusts | 25km/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 chill | 11°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 | ||||||||
| Height | 2.4m (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 |
| Period | 13.3 sec. | 14.2 sec. | 14.2 sec. | 14.3 sec. | 14.4 sec. | 14.3 sec. | 14.3 sec. | 14.1 sec. |
| Significant height | 0.7m (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 temperature | 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) | 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.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
| Outside temperature | 11°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 temperature | 8°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) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 78% | 71% | 73% | 74% | 73% | 65% | 63% | 65% |
| Barometric pressure | 1020 hPa | 1021 hPa | 1022 hPa | 1024 hPa | 1025 hPa | 1024 hPa | 1024 hPa | 1024 hPa |
| Cloud cover | 28% | 0% | 4% | 13% | 14% | 40% | 49% | 22% |
| Heat index | 11°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 point | 7°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 | ||||||||
| Speed | 25km/h (16mph) | 21km/h (13mph) | 12km/h (8mph) | 8km/h (5mph) | 6km/h (4mph) | 13km/h (8mph) | 20km/h (13mph) | 21km/h (13mph) |
| Gusts | 34km/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 | 8° N | 358° N | 158° SSE | 221° SW | 217° SW | 203° SSW |
| Wind chill | 8°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 | ||||||||
| Height | 1.9m (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 |
| Period | 14.1 sec. | 14.0 sec. | 13.8 sec. | 13.6 sec. | 13.4 sec. | 13.3 sec. | 12.9 sec. | 12.7 sec. |
| Significant height | 0.7m (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 temperature | 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) | 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.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
| Outside temperature | 12°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 temperature | 10°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) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0.1in |
| Humidity | 69% | 69% | 70% | 81% | 83% | 85% | 85% | 90% |
| Barometric pressure | 1023 hPa | 1022 hPa | 1019 hPa | 1017 hPa | 1015 hPa | 1013 hPa | 1013 hPa | 1013 hPa |
| Cloud cover | 50% | 35% | 11% | 100% | 86% | 56% | 90% | 100% |
| Heat index | 12°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 point | 7°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 | ||||||||
| Speed | 26km/h (16mph) | 29km/h (18mph) | 36km/h (22mph) | 39km/h (24mph) | 40km/h (25mph) | 40km/h (25mph) | 45km/h (28mph) | 36km/h (23mph) |
| Gusts | 36km/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 chill | 10°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 | ||||||||
| Height | 1.3m (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 |
| Period | 12.6 sec. | 12.3 sec. | 14.1 sec. | 16.0 sec. | 17.8 sec. | 16.9 sec. | 16.0 sec. | 16.5 sec. |
| Significant height | 0.5m (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 temperature | 11°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.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
| Outside temperature | 11°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 temperature | 8°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) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 84% | 74% | 65% | 63% | 59% | 66% | 70% | 73% |
| Barometric pressure | 1015 hPa | 1016 hPa | 1017 hPa | 1019 hPa | 1020 hPa | 1021 hPa | 1022 hPa | 1023 hPa |
| Cloud cover | 100% | 100% | 76% | 43% | 35% | 79% | 58% | 23% |
| Heat index | 11°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 point | 9°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 | ||||||||
| Speed | 30km/h (19mph) | 30km/h (18mph) | 28km/h (17mph) | 29km/h (18mph) | 30km/h (19mph) | 38km/h (23mph) | 39km/h (24mph) | 32km/h (20mph) |
| Gusts | 41km/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 chill | 8°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 | ||||||||
| Height | 3.8m (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 |
| Period | 16.8 sec. | 16.5 sec. | 16.2 sec. | 15.8 sec. | 17.4 sec. | 17.5 sec. | 16.5 sec. | 15.8 sec. |
| Significant height | 1.5m (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 temperature | 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) | 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.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
| Outside temperature | 10°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 temperature | 8°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) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 75% | 74% | 72% | 71% | 71% | 70% | 68% | 69% |
| Barometric pressure | 1025 hPa | 1025 hPa | 1025 hPa | 1025 hPa | 1024 hPa | 1023 hPa | 1023 hPa | 1023 hPa |
| Cloud cover | 12% | 11% | 16% | 15% | 9% | 5% | 3% | 5% |
| Heat index | 10°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 point | 6°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 | ||||||||
| Speed | 25km/h (16mph) | 18km/h (11mph) | 17km/h (10mph) | 14km/h (9mph) | 11km/h (7mph) | 9km/h (6mph) | 13km/h (8mph) | 15km/h (10mph) |
| Gusts | 34km/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 chill | 8°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 | ||||||||
| Height | 5.1m (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 |
| Period | 15.0 sec. | 14.5 sec. | 14.2 sec. | 13.5 sec. | 13.2 sec. | 13.1 sec. | 12.9 sec. | 12.5 sec. |
| Significant height | 1.1m (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 temperature | 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) | 13°C (56°F) |







