July is the hottest month in St-Nazaire with an average temperature of 19°C (66°F) and the coldest is January at 6°C (42°F) with the most daily sunshine hours at 13 in July. The wettest month is October with an average of 70mm of rain..
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Sunrise 08:22
Sunset 17:27
Sunrise 08:22
Sunset 17:27