January in Semigorsk is the most freezing month of the year. In January, the weather in Semigorsk is typically freezing. Average daily high temperature in January is about 20 degrees below zero. On average, Semigorsk has 24 cloudy, 6 snowy, and 1 sunny day in January. The snowfalls are usually light. January as well as February, April, May, and September is considered the most uncomfortable time to visit Semigorsk.