In December, the weather in Omsukchan is typically freezing. Average daily high temperature in December is about 29 degrees below zero. On average, Omsukchan has 17 cloudy, 6 snowy, 4 sunny, and 4 partly cloudy days in December. The snowfalls are usually light. December as well as January, February, March, and November is considered the most uncomfortable time to visit Omsukchan.