July is the hottest month in Nantes with an average temperature of 20°C (67°F) and the coldest is January at 6°C (42°F). The wettest month is January with an average of 100mm of rain. The best month to swim in the sea is in August when the average sea temperature is 21°C (70°F).
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Sunrise 08:22
Sunset 17:23
Sunrise 08:22
Sunset 17:23