January in Portofino is the cloudiest and the coldest month of the year. In January, the weather in Portofino is typically cold. Average daily high temperature in January is about 9 degrees above zero. On average, Portofino has 14 partly cloudy, 10 sunny, and 7 rainy 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 Portofino.