January in Le Mans is the coldest month of the year. In January, the weather in Le Mans is typically cold. Average daily high temperature in January is about 6 degrees above zero. On average, Le Mans has 17 rainy, 6 sunny, 6 cloudy, and 2 partly cloudy days in January. The rains are usually light. January as well as February, May, November, and December is considered the most uncomfortable time to visit Le Mans.