January in Nice is the coldest month of the year. In January, the weather in Nice is typically warm. Average daily high temperature in January is about 10 degrees above zero. On average, Nice has 12 sunny, 8 rainy, 7 partly cloudy, and 4 cloudy days in January. The rains are usually moderate. January as well as February, March, April, and November is considered the most uncomfortable time to visit Nice.