January in Sukko is the rainiest, the cloudiest, and the coldest month of the year. In January, the weather in Sukko is typically cold. Average daily high temperature in January is about 4 degrees above zero. On average, Sukko has 13 rainy, 9 cloudy, 5 sunny, and 4 partly cloudy days in January. The rains are usually moderate. January as well as February, March, and December is considered the most uncomfortable time to visit Sukko.