September in Bolshoe Selo is the rainiest month of the year. In September, the weather in Bolshoe Selo is typically warm. Average daily high temperature in September is about 13 degrees above zero. On average, Bolshoe Selo has 17 rainy, 7 cloudy, 4 sunny, and 2 partly cloudy days in September. The rains are usually moderate. September as well as January, April, October, and November is considered the most uncomfortable time to visit Bolshoe Selo.