May in Irbeyskoe is the rainiest month of the year. In May, the weather in Irbeyskoe is typically warm. Average daily high temperature in May is about 13 degrees above zero. On average, Irbeyskoe has 25 rainy, 4 sunny, 1 cloudy, and 1 partly cloudy day in May. The rains are usually heavy. May as well as January, February, April, and September is considered the most uncomfortable time to visit Irbeyskoe.