In October, the weather in Sayansk is typically cold. Average daily high temperature in October is about 4 degrees above zero. On average, Sayansk has 12 rainy, 7 cloudy, 6 partly cloudy, 4 sunny, and 2 snowy days in October. The rains are usually light. October as well as January, February, April, and December is considered the most uncomfortable time to visit Sayansk.