December in Semiletka is the snowiest and the windiest month of the year. In December, the weather in Semiletka is typically freezing. Average daily high temperature in December is about 8 degrees below zero. On average, Semiletka has 16 snowy, 14 cloudy, and 1 sunny day in December. The snowfalls are usually moderate. December as well as January, February, April, and September is considered the most uncomfortable time to visit Semiletka.