January in Marseilles is the coldest month of the year. In January, the weather in Marseilles is typically warm. Average daily high temperature in January is about 11 degrees above zero. On average, Marseilles has 14 sunny, 7 rainy, 5 cloudy, and 5 partly cloudy days in January. The rains are usually moderate. January as well as February, November, and December is considered the most uncomfortable time to visit Marseilles.