July is the hottest month in Tromso with an average temperature of 12°C (54°F) and the coldest is January at -4°C (25°F) with the most daily sunshine hours at 8 in August. The wettest month is October with an average of 130mm of rain. The best month to swim in the sea is in August when the average sea temperature is 12°C (54°F).
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Sunrise 10:11
Sunset 12:48
Sunrise 10:11
Sunset 12:48