August is the hottest month in Vannes with an average temperature of 18°C (64°F) and the coldest is February at 7°C (45°F) with the most daily sunshine hours at 10 in August. The wettest month is December with an average of 84.2mm of rain. The best month to swim in the sea is in August when the average sea temperature is 20°C (68°F).
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Sunrise 08:02
Sunset 17:47
Sunrise 08:02
Sunset 17:47