August is the hottest month in Viterbo with an average temperature of 24°C (75°F) and the coldest is January at 5°C (41°F) with the most daily sunshine hours at 11 in July. The wettest month is November with an average of 92.9mm of rain. The best month to swim in the sea is in August when the average sea temperature is 27°C (79°F).
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Sunrise 07:39
Sunset 16:42
Sunrise 07:39
Sunset 16:42