In December, the weather in Ribnitsa is typically cold. Average daily high temperature in December is about 1 degree above zero. On average, Ribnitsa has 18 cloudy, 6 sunny, 4 partly cloudy, 2 snowy, and 1 rainy day in December. The snowfalls are usually moderate. December as well as February, March, April, and November is considered the most uncomfortable time to visit Ribnitsa.