September in Dezhou is the cloudiest month of the year. In September, the weather in Dezhou is typically warm. Average daily high temperature in September is about 25 degrees above zero. On average, Dezhou has 16 partly cloudy, 11 sunny, 2 rainy, and 1 cloudy day in September. The rains are usually light. September as well as April and October is considered the most comfortable time to visit Dezhou.