May in Bolshoy Nimnyr is the rainiest month of the year. In May, the weather in Bolshoy Nimnyr is typically cold. Average daily high temperature in May is about 5 degrees above zero. On average, Bolshoy Nimnyr has 23 rainy, 3 snowy, 3 sunny, and 2 cloudy days in May. The rains are usually heavy. May as well as January, February, March, and August is considered the most uncomfortable time to visit Bolshoy Nimnyr.