January in Trento is the coldest month of the year. In January, the weather in Trento is typically cold. Average daily high temperature in January is about 1 degree above zero. On average, Trento has 15 partly cloudy, 9 sunny, 6 rainy, and 1 cloudy day in January. The rains are usually moderate. January as well as February, March, April, and May is considered the most uncomfortable time to visit Trento.