March in Castellina in Chianti is the windiest month of the year. In March, the weather in Castellina in Chianti is typically warm. Average daily high temperature in March is about 13 degrees above zero. On average, Castellina in Chianti has 11 sunny, 10 rainy, 9 partly cloudy, and 1 cloudy day in March. The rains are usually heavy. March as well as January, February, November, and December is considered the most uncomfortable time to visit Castellina in Chianti.