November in Mannheim is the cloudiest month of the year. In November, the weather in Mannheim is typically cold. Average daily high temperature in November is about 8 degrees above zero. On average, Mannheim has 15 cloudy, 12 rainy, and 3 sunny days in November. The rains are usually light. November as well as January, February, and December is considered the most uncomfortable time to visit Mannheim.