In December, the weather in Ul'kan is typically freezing. Average daily high temperature in December is about 16 degrees below zero. On average, Ul'kan has 10 partly cloudy, 8 sunny, 8 cloudy, and 5 snowy days in December. The snowfalls are usually light. December as well as January, February, April, and November is considered the most uncomfortable time to visit Ul'kan.