July in Bolshaya Sosnova is the sunniest and the warmest month of the year. In July, the weather in Bolshaya Sosnova is typically warm. Average daily high temperature in July is about 22 degrees above zero. On average, Bolshaya Sosnova has 12 sunny, 9 rainy, 8 partly cloudy, and 2 cloudy days in July. The rains are usually moderate.