July is the hottest month in Roscoff with an average temperature of 17°C (63°F) and the coldest is January at 7°C (45°F) with the most daily sunshine hours at 6 in August. The wettest month is December with an average of 113mm of rain. The best month to swim in the sea is in July when the average sea temperature is 17°C (63°F).
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Sunrise 08:37
Sunset 17:28
Sunrise 08:37
Sunset 17:28