In December, the weather in Ust-Chul is typically freezing. Average daily high temperature in December is about 9 degrees below zero. On average, Ust-Chul has 17 cloudy, 10 snowy, 3 sunny, and 1 partly cloudy day in December. The snowfalls are usually light. December as well as January, February, April, and May is considered the most uncomfortable time to visit Ust-Chul.