December in Kohtla-Jarve is the windiest month of the year. In December, the weather in Kohtla-Jarve is typically freezing. Average daily high temperature in December is about zero. On average, Kohtla-Jarve has 13 cloudy, 5 rainy, 5 snowy, 5 partly cloudy, and 3 sunny days in December. The rains are usually moderate. December as well as April, October, and November is considered the most uncomfortable time to visit Kohtla-Jarve.