December in Sovetskaya Gavan is the snowiest month of the year. In December, the weather in Sovetskaya Gavan is typically freezing. Average daily high temperature in December is about 10 degrees below zero. On average, Sovetskaya Gavan has 15 sunny, 8 partly cloudy, 7 snowy, and 1 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 Sovetskaya Gavan.