March in Castelnuovo del Garda is the windiest month of the year. In March, the weather in Castelnuovo del Garda is typically warm. Average daily high temperature in March is about 11 degrees above zero. On average, Castelnuovo del Garda has 11 rainy, 11 sunny, and 9 partly cloudy days in March. The rains are usually moderate. March as well as January, February, April, and May is considered the most uncomfortable time to visit Castelnuovo del Garda.