July in Bolshiye Oshvortsy is the sunniest and the warmest month of the year. In July, the weather in Bolshiye Oshvortsy is typically warm. Average daily high temperature in July is about 24 degrees above zero. On average, Bolshiye Oshvortsy has 12 rainy, 11 sunny, and 8 partly cloudy days in July. The rains are usually heavy.