January in Montalcino is the coldest month of the year. In January, the weather in Montalcino is typically cold. Average daily high temperature in January is about 9 degrees above zero. On average, Montalcino has 9 sunny, 8 rainy, 8 partly cloudy, and 6 cloudy days in January. The rains are usually moderate. January as well as February, March, November, and December is considered the most uncomfortable time to visit Montalcino.