In December, the weather in Beloyarsk is typically freezing. Average daily high temperature in December is about 17 degrees below zero. On average, Beloyarsk has 12 cloudy, 8 snowy, 7 partly cloudy, and 4 sunny days in December. The snowfalls are usually light. December as well as January, February, March, and September is considered the most uncomfortable time to visit Beloyarsk.