January in Genoa is the coldest month of the year. In January, the weather in Genoa is typically cold. Average daily high temperature in January is about 6 degrees above zero. On average, Genoa has 11 rainy, 8 sunny, 6 cloudy, and 6 partly 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 Genoa.