May in Chechuysk is the rainiest month of the year. In May, the weather in Chechuysk is typically warm. Average daily high temperature in May is about 10 degrees above zero. On average, Chechuysk has 18 rainy, 10 cloudy, and 3 sunny days in May. The rains are usually moderate. May as well as January, February, April, and September is considered the most uncomfortable time to visit Chechuysk.