In December, the weather in Omsukchan is typically freezing. Average daily high temperature in December is about 26 degrees below zero. On average, Omsukchan has 24 cloudy, 4 sunny, 2 snowy, and 1 partly cloudy day in December. The snowfalls are usually light. December as well as January, February, March, and September is considered the most uncomfortable time to visit Omsukchan.