May in Bayan-Kol is the rainiest and the windiest month of the year. In May, the weather in Bayan-Kol is typically warm. Average daily high temperature in May is about 14 degrees above zero. On average, Bayan-Kol has 18 partly cloudy, 9 sunny, 3 rainy, and 1 cloudy day in May. The rains are usually light.