January in Korsakov is the most freezing month of the year. In January, the weather in Korsakov is typically freezing. Average daily high temperature in January is about 7 degrees below zero. On average, Korsakov has 14 cloudy, 10 snowy, 4 partly cloudy, and 3 sunny days in January. The snowfalls are usually moderate. January as well as April, May, October, and November is considered the most uncomfortable time to visit Korsakov.