In December, the weather in Sumon Kok-Chyraansky is typically freezing. Average daily high temperature in December is about 12 degrees below zero. On average, Sumon Kok-Chyraansky has 17 sunny and 14 partly cloudy days in December. December as well as January and February is considered the most uncomfortable time to visit Sumon Kok-Chyraansky.