September in Magadan is the rainiest month of the year. In September, the weather in Magadan is typically cold. Average daily high temperature in September is about 9 degrees above zero. On average, Magadan has 14 rainy, 7 sunny, 7 cloudy, and 2 partly cloudy days in September. The rains are usually heavy. September as well as January, February, March, and May is considered the most uncomfortable time to visit Magadan.