In April, the weather in Bolshoy kamen is typically cold. Average daily high temperature in April is about 9 degrees above zero. On average, Bolshoy kamen has 13 sunny, 8 partly cloudy, 6 rainy, and 3 cloudy days in April. The rains are usually moderate. April as well as January, March, May, and August is considered the most uncomfortable time to visit Bolshoy kamen.