In December, the weather in Severobaykalsk is typically freezing. Average daily high temperature in December is about 19 degrees below zero. On average, Severobaykalsk has 10 snowy, 9 cloudy, 6 sunny, and 6 partly cloudy days in December. The snowfalls are usually light. December as well as January, February, September, and November is considered the most uncomfortable time to visit Severobaykalsk.