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

In july, according to seasonal norms, the sea temperature in Belle-Île-en-Mer is:
Minimum: 59°F
Average: 64°F
Maximum: 69°F
Other useful seasonal weather averages in july:
- Outside temperature: 63°F to 67°F
- Most common weather: "Clear/Sunny"
- The wind blows at 11.2mph
- It rains a total of 2.3in, over 4 day(s).
Should we swim in Belle-Île-en-Mer in july?
Yes... and no. The water temperature in Belle-Île-en-Mer in july is cool
Swimming in july on the beaches of Belle-Île-en-Mer is possible but the sea water is cool. So even though the sea temperature sometimes climbs to 69°F, it can also be as low as 59°F! Note that the average is 64°F.
Note also that in july, the climate is good with an average outside temperature of 65°F, 2.3in of precipitation (over 4 days) and 83.63 % humidity.
Water and normal seasonal temperatures in Belle-Île-en-Mer in july
July | |||
Average sea temperature | 64°F | ||
Minimum sea temperature | 59°F | ||
Maximum sea temperature | 69°F | ||
Average outside temperature | 67°F | ||
Maximum outside temperature | 68°F | ||
Minimum outside temperature | 65°F | ||
Wind speed | 15.5mph | ||
Wind temperature | 65°F | ||
Precipitation | 2.3in | ||
Number of days of rain | 4 jour(s) (12%) | ||
Humidity | 84% | ||
Visibility in kilometers | 9.71km | ||
Cloud cover | 32% | ||
Our opinion | cool swimming |
Chart of the tides in july 2025
Tide times in july 2025 in Belle-Île-en-Mer
Swim elsewhere in Brittany in july
City | Average T° | Min. T° | Max. T° | Our opinion |
Brest in july | 62°F | 66°F | cold swimming | |
Lorient in july | 63°F | 68°F | cool swimming | |
Saint-Brieuc (Côtes d'Armor) in july | 62°F | 65°F | cold swimming | |
Saint-Malo in july | 62°F | 65°F | cold swimming | |
Vannes in july | 64°F | 69°F | cool swimming | |
Concarneau in july | 63°F | 67°F | cold swimming | |
Dinard in july | 62°F | 65°F | cold swimming | |
Erquy in july | 62°F | 65°F | cold swimming | |
Perros-Guirec in july | 62°F | 65°F | cold swimming | |
The Quiberon peninsula in july | 64°F | 69°F | cool swimming | |
Bénodet in july | 62°F | 67°F | cold swimming | |
Brehat Island (Île de Bréhat) in july | 62°F | 65°F | cold swimming | |
Cap Fréhel in july | 62°F | 65°F | cold swimming | |
Carnac in july | 63°F | 68°F | cool swimming | |
côte de granit rose (Pink Granite Coast) in july | 61°F | 65°F | cold swimming | |
Doëlan (Clohars-Carnoët) in july | 63°F | 67°F | cold swimming | |
Douarnenez in july | 62°F | 65°F | cold swimming | |
Fouesnant in july | 63°F | 67°F | cold swimming | |
Lannion in july | 61°F | 65°F | cold swimming | |
Le Crouesty in july | 64°F | 69°F | cool swimming |