In September, the weather in Irbeyskoe is typically warm. Average daily high temperature in September is about 11 degrees above zero. On average, Irbeyskoe has 16 rainy, 6 sunny, 4 cloudy, and 4 partly cloudy days in September. The rains are usually moderate. September as well as January, February, April, and May is considered the most uncomfortable time to visit Irbeyskoe.