January in Yuzhno-Sakhalinsk is the snowiest and the most freezing month of the year. In January, the weather in Yuzhno-Sakhalinsk is typically freezing. Average daily high temperature in January is about 8 degrees below zero. On average, Yuzhno-Sakhalinsk has 11 snowy, 9 partly cloudy, 7 cloudy, and 4 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 Yuzhno-Sakhalinsk.