December in Bielsk Podlaski is the windiest month of the year. In December, the weather in Bielsk Podlaski is typically cold. Average daily high temperature in December is about 1 degree above zero. On average, Bielsk Podlaski has 17 cloudy, 7 rainy, 5 snowy, and 2 sunny days in December. The rains are usually moderate. December as well as March, April, and November is considered the most uncomfortable time to visit Bielsk Podlaski.