December in Klemtu is the snowiest and the coldest month of the year. In December, the weather in Klemtu is typically cold. Average daily high temperature in December is about 1 degree above zero. On average, Klemtu has 20 rainy, 5 snowy, 4 sunny, and 2 cloudy days in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Klemtu.