September in Tommot is the rainiest month of the year. In September, the weather in Tommot is typically cold. Average daily high temperature in September is about 8 degrees above zero. On average, Tommot has 17 rainy, 6 cloudy, 4 sunny, and 3 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 Tommot.