May in Birusinsk is the rainiest and the windiest month of the year. In May, the weather in Birusinsk is typically warm. Average daily high temperature in May is about 12 degrees above zero. On average, Birusinsk has 20 rainy, 5 cloudy, 3 sunny, and 3 partly cloudy days in May. The rains are usually moderate. May as well as January, February, April, and October is considered the most uncomfortable time to visit Birusinsk.