January in Potenza is the coldest month of the year. In January, the weather in Potenza is typically cold. Average daily high temperature in January is about 6 degrees above zero. On average, Potenza has 18 rainy, 6 sunny, 5 partly cloudy, and 2 cloudy days in January. The rains are usually moderate. January as well as February, March, April, and May is considered the most uncomfortable time to visit Potenza.