October in Biyka is the rainiest month of the year. In October, the weather in Biyka is typically cold. Average daily high temperature in October is about 5 degrees above zero. On average, Biyka has 15 rainy, 9 sunny, 4 partly cloudy, 2 cloudy, and 1 snowy day in October. The rains are usually heavy. October as well as January, February, April, and May is considered the most uncomfortable time to visit Biyka.