In September, the weather in Nizhniy Syryez is typically warm. Average daily high temperature in September is about 14 degrees above zero. On average, Nizhniy Syryez has 14 rainy, 13 cloudy, and 3 sunny days in September. The rains are usually moderate. September as well as January, February, April, and October is considered the most uncomfortable time to visit Nizhniy Syryez.