November in Rennes is the cloudiest month of the year. In November, the weather in Rennes is typically warm. Average daily high temperature in November is about 11 degrees above zero. On average, Rennes has 18 rainy, 7 cloudy, 4 sunny, and 1 partly cloudy day in November. The rains are usually heavy. November as well as January, February, May, and December is considered the most uncomfortable time to visit Rennes.