In December, the weather in Kumertau is typically freezing. Average daily high temperature in December is about 8 degrees below zero. On average, Kumertau has 17 cloudy, 11 snowy, 2 sunny, and 1 partly cloudy day in December. The snowfalls are usually light. December as well as January, February, April, and October is considered the most uncomfortable time to visit Kumertau.