August in Bolshoy kamen is the rainiest and the warmest month of the year. In August, the weather in Bolshoy kamen is typically warm. Average daily high temperature in August is about 24 degrees above zero. On average, Bolshoy kamen has 13 rainy, 8 cloudy, 8 partly cloudy, and 2 sunny days in August. The rains are usually heavy. August as well as January, March, April, and May is considered the most uncomfortable time to visit Bolshoy kamen.