Swimming in Belle-Île-en-Mer in october 2025: Average sea temperature in october and tide times in october 2025
Average sea temperature in Belle-Île-en-Mer in october 2025.

In october, according to seasonal norms, the sea temperature in Belle-Île-en-Mer is:
Minimum: 59°F
Average: 63°F
Maximum: 66°F
Other useful seasonal weather averages in october:
- Outside temperature: 59°F to 62°F
- Most common weather: "Clear/Sunny"
- The wind blows at 8.7mph
- It rains a total of 5.3in, over 7 day(s).
Should we swim in Belle-Île-en-Mer in october?
No... The water temperature in Belle-Île-en-Mer in october is cold
Swimming in Belle-Île-en-Mer in october is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average sea temperature of 63°F (minimum: 59°F - maximum: 66°F).
Note also that in october, the climate is good with an average outside temperature of 60°F, 5.3in of precipitation (over 7 days) and 82.04 % humidity.
Water and normal seasonal temperatures in Belle-Île-en-Mer in october
October | |||
Average sea temperature | 63°F | ||
Minimum sea temperature | 59°F | ||
Maximum sea temperature | 66°F | ||
Average outside temperature | 61°F | ||
Maximum outside temperature | 63°F | ||
Minimum outside temperature | 59°F | ||
Wind speed | 18mph | ||
Wind temperature | 58°F | ||
Precipitation | 5.3in | ||
Number of days of rain | 7 jour(s) (24%) | ||
Humidity | 83% | ||
Visibility in kilometers | 9.51km | ||
Cloud cover | 39% | ||
Our opinion | cold swimming |
Chart of the tides in october 2025
Tide times in october 2025 in Belle-Île-en-Mer
Swim elsewhere in Brittany in october
City | Average T° | Min. T° | Max. T° | Our opinion |
Brest in october | 60°F | 63°F | cold swimming | |
Lorient in october | 62°F | 66°F | cold swimming | |
Saint-Brieuc (Côtes d'Armor) in october | 63°F | 65°F | cold swimming | |
Saint-Malo in october | 63°F | 65°F | cold swimming | |
Vannes in october | 63°F | 66°F | cold swimming | |
Concarneau in october | 62°F | 65°F | cold swimming | |
Dinard in october | 63°F | 65°F | cold swimming | |
Erquy in october | 62°F | 65°F | cold swimming | |
Perros-Guirec in october | 62°F | 63°F | cold swimming | |
The Quiberon peninsula in october | 62°F | 66°F | cold swimming | |
Bénodet in october | 61°F | 65°F | cold swimming | |
Brehat Island (Île de Bréhat) in october | 62°F | 64°F | cold swimming | |
Cap Fréhel in october | 62°F | 65°F | cold swimming | |
Carnac in october | 62°F | 65°F | cold swimming | |
côte de granit rose (Pink Granite Coast) in october | 59°F | 62°F | cold swimming | |
Doëlan (Clohars-Carnoët) in october | 62°F | 64°F | cold swimming | |
Douarnenez in october | 60°F | 63°F | cold swimming | |
Fouesnant in october | 62°F | 65°F | cold swimming | |
Lannion in october | 59°F | 62°F | cold swimming | |
Le Crouesty in october | 62°F | 66°F | cold swimming |