In December, the weather in Syagannakh is typically freezing. Average daily high temperature in December is about 27 degrees below zero. On average, Syagannakh has 13 partly cloudy, 10 cloudy, 7 sunny, and 1 snowy day in December. The snowfalls are usually light. December as well as January, February, March, and May is considered the most uncomfortable time to visit Syagannakh.