May in Nevelsk is the rainiest month of the year. In May, the weather in Nevelsk is typically cold. Average daily high temperature in May is about 10 degrees above zero. On average, Nevelsk has 14 rainy, 6 sunny, 6 partly cloudy, and 5 cloudy days in May. The rains are usually moderate. May as well as January, April, and November is considered the most uncomfortable time to visit Nevelsk.