May in Cherkessk is the rainiest month of the year. In May, the weather in Cherkessk is typically warm. Average daily high temperature in May is about 18 degrees above zero. On average, Cherkessk has 22 rainy and 9 sunny days in May. The rains are usually heavy. May as well as January, February, March, and December is considered the most uncomfortable time to visit Cherkessk.