November in Flensburg is the rainiest month of the year. In November, the weather in Flensburg is typically cold. Average daily high temperature in November is about 7 degrees above zero. On average, Flensburg has 21 rainy, 5 cloudy, 3 sunny, and 1 partly cloudy day in November. The rains are usually moderate. November as well as January, February, March, and September is considered the most uncomfortable time to visit Flensburg.