January in Roudnice nad Labem is the snowiest, the cloudiest, and the coldest month of the year. In January, the weather in Roudnice nad Labem is typically cold. Average daily high temperature in January is about 1 degree above zero. On average, Roudnice nad Labem has 13 cloudy, 12 rainy, 3 sunny, 2 partly cloudy, and 1 snowy day in January. The rains are usually light. January as well as February and December is considered the most uncomfortable time to visit Roudnice nad Labem.