September in Takhtoyamsk is the rainiest month of the year. In September, the weather in Takhtoyamsk is typically cold. Average daily high temperature in September is about 9 degrees above zero. On average, Takhtoyamsk has 10 rainy, 8 sunny, 6 cloudy, and 6 partly cloudy days in September. The rains are usually moderate. September as well as January, February, March, and May is considered the most uncomfortable time to visit Takhtoyamsk.