January in Visby is the snowiest, the cloudiest, and the coldest month of the year. In January, the weather in Visby is typically cold. Average daily high temperature in January is about 1 degree above zero. On average, Visby has 13 rainy, 13 cloudy, 3 snowy, and 2 sunny days in January. The rains are usually moderate. January as well as February, November, and December is considered the most uncomfortable time to visit Visby.