In August, the weather in Novyy Bor is typically warm. Average daily high temperature in August is about 14 degrees above zero. On average, Novyy Bor has 18 rainy, 10 cloudy, and 3 sunny days in August. The rains are usually moderate. August as well as January, February, May, and September is considered the most uncomfortable time to visit Novyy Bor.