May in Saint-Maur-des-Fosses is the rainiest month of the year. In May, the weather in Saint-Maur-des-Fosses is typically warm. Average daily high temperature in May is about 17 degrees above zero. On average, Saint-Maur-des-Fosses has 18 rainy, 7 sunny, 5 partly cloudy, and 1 cloudy day in May. The rains are usually moderate. May as well as January, February, March, and November is considered the most uncomfortable time to visit Saint-Maur-des-Fosses.