In September, the weather in Alekseyevsk is typically cold. Average daily high temperature in September is about 9 degrees above zero. On average, Alekseyevsk has 17 rainy, 7 cloudy, 4 sunny, and 2 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 Alekseyevsk.