In September, the weather in Krasnoyarsk is typically warm. Average daily high temperature in September is about 13 degrees above zero. On average, Krasnoyarsk has 12 rainy, 8 partly cloudy, 7 cloudy, and 3 sunny days in September. The rains are usually moderate. September as well as January, February, October, and December is considered the most uncomfortable time to visit Krasnoyarsk.