In October, the weather in Sosnovoborsk is typically cold. Average daily high temperature in October is about 3 degrees above zero. On average, Sosnovoborsk has 16 rainy, 8 cloudy, 5 snowy, and 2 sunny days in October. The rains are usually light. October as well as January, February, April, and May is considered the most uncomfortable time to visit Sosnovoborsk.