In October, the weather in Bol'shoye Gangozero is typically cold. Average daily high temperature in October is about 5 degrees above zero. On average, Bol'shoye Gangozero has 16 rainy, 13 cloudy, and 2 sunny days in October. The rains are usually moderate. October as well as April and November is considered the most uncomfortable time to visit Bol'shoye Gangozero.