January in Viborg is the coldest month of the year. In January, the weather in Viborg is typically cold. Average daily high temperature in January is about 2 degrees above zero. On average, Viborg has 19 rainy, 8 cloudy, and 4 sunny days in January. The rains are usually heavy. January as well as February, March, September, and October is considered the most uncomfortable time to visit Viborg.