July is the hottest month in Bialystok with an average temperature of 17°C (63°F) and the coldest is January at -4°C (25°F) with the most daily sunshine hours at 9 in July. The wettest month is July with an average of 80mm of rain..
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Sunrise 07:02
Sunset 15:25
Sunrise 07:02
Sunset 15:25