In September, the weather in Monchegorsk is typically cold. Average daily high temperature in September is about 8 degrees above zero. On average, Monchegorsk has 16 rainy, 11 cloudy, 2 sunny, and 1 partly cloudy day in September. The rains are usually moderate. September as well as January, April, May, and June is considered the most uncomfortable time to visit Monchegorsk.