March in Grosseto is the windiest month of the year. In March, the weather in Grosseto is typically warm. Average daily high temperature in March is about 14 degrees above zero. On average, Grosseto has 12 sunny, 10 rainy, 7 partly cloudy, and 2 cloudy days in March. The rains are usually moderate. March as well as January, February, November, and December is considered the most uncomfortable time to visit Grosseto.