January in Baykalsk is the most freezing month of the year. In January, the weather in Baykalsk is typically freezing. Average daily high temperature in January is about 12 degrees below zero. On average, Baykalsk has 17 partly cloudy, 13 sunny, and 1 snowy day in January. The snowfalls are usually light. January as well as February, April, October, and December is considered the most uncomfortable time to visit Baykalsk.