December in Mamai is the snowiest month of the year. In December, the weather in Mamai is typically cold. Average daily high temperature in December is about 3 degrees above zero. On average, Mamai has 16 sunny, 12 partly cloudy, 1 rainy, 1 snowy, and 1 cloudy day in December. The rains are usually light. December as well as January, February, and November is considered the most uncomfortable time to visit Mamai.