August in Sosnovy Bor is the sunniest month of the year. In August, the weather in Sosnovy Bor is typically warm. Average daily high temperature in August is about 22 degrees above zero. On average, Sosnovy Bor has 15 sunny, 8 rainy, 7 partly cloudy, and 1 cloudy day in August. The rains are usually light. August as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Sosnovy Bor.