In February, the weather in Bolshiye Siby is typically freezing. Average daily high temperature in February is about 9 degrees below zero. On average, Bolshiye Siby has 19 cloudy, 9 snowy, and 1 sunny day in February. The snowfalls are usually light. February as well as January, April, September, and October is considered the most uncomfortable time to visit Bolshiye Siby.