October in Yuzhno-Sakhalinsk is the windiest and the sunniest month of the year. In October, the weather in Yuzhno-Sakhalinsk is typically cold. Average daily high temperature in October is about 10 degrees above zero. On average, Yuzhno-Sakhalinsk has 12 rainy, 8 sunny, 7 partly cloudy, and 4 cloudy days in October. The rains are usually heavy. October as well as January, April, May, and November is considered the most uncomfortable time to visit Yuzhno-Sakhalinsk.