December in Kystatyam is the most freezing month of the year. In December, the weather in Kystatyam is typically freezing. Average daily high temperature in December is about 33 degrees below zero. On average, Kystatyam has 23 cloudy, 4 sunny, and 4 partly cloudy days in December. December as well as January, February, March, and May is considered the most uncomfortable time to visit Kystatyam.