December in Chornobyl is the windiest month of the year. In December, the weather in Chornobyl is typically freezing. Average daily high temperature in December is about zero. On average, Chornobyl has 12 cloudy, 10 rainy, 8 snowy, and 1 sunny day in December. The rains are usually moderate. December as well as March and November is considered the most uncomfortable time to visit Chornobyl.