October in Baykalsk is the sunniest month of the year. In October, the weather in Baykalsk is typically cold. Average daily high temperature in October is about 4 degrees above zero. On average, Baykalsk has 16 sunny, 9 partly cloudy, and 6 rainy 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 Baykalsk.