January in Kansk is the most freezing month of the year. In January, the weather in Kansk is typically freezing. Average daily high temperature in January is about 16 degrees below zero. On average, Kansk has 19 cloudy, 4 snowy, 4 sunny, and 4 partly cloudy days in January. The snowfalls are usually light. January as well as February, April, May, and October is considered the most uncomfortable time to visit Kansk.