September in Zima is the rainiest month of the year. In September, the weather in Zima is typically warm. Average daily high temperature in September is about 11 degrees above zero. On average, Zima has 13 rainy, 9 sunny, and 8 partly cloudy days in September. The rains are usually moderate. September as well as January, February, April, and December is considered the most uncomfortable time to visit Zima.