April in Bol'shoye Gangozero is the sunniest month of the year. In April, the weather in Bol'shoye Gangozero is typically cold. Average daily high temperature in April is about 5 degrees above zero. On average, Bol'shoye Gangozero has 9 partly cloudy, 8 sunny, 7 cloudy, 5 rainy, and 1 snowy day in April. The rains are usually light. April as well as September, October, and November is considered the most uncomfortable time to visit Bol'shoye Gangozero.