In December, the weather in Sumon Uyuksky is typically freezing. Average daily high temperature in December is about 16 degrees below zero. On average, Sumon Uyuksky has 14 partly cloudy, 8 cloudy, 6 sunny, and 3 snowy days in December. The snowfalls are usually light. December as well as January, February, and November is considered the most uncomfortable time to visit Sumon Uyuksky.