September in Sumon Khandagaytinsky is the sunniest month of the year. In September, the weather in Sumon Khandagaytinsky is typically cold. Average daily high temperature in September is about 8 degrees above zero. On average, Sumon Khandagaytinsky has 10 partly cloudy, 9 rainy, 9 sunny, and 2 cloudy days in September. The rains are usually light. September as well as January, February, April, and May is considered the most uncomfortable time to visit Sumon Khandagaytinsky.