December in Kaliningrad is the rainiest and the windiest month of the year. In December, the weather in Kaliningrad is typically cold. Average daily high temperature in December is about 2 degrees above zero. On average, Kaliningrad has 22 rainy, 3 sunny, 3 cloudy, 2 partly cloudy, and 1 snowy day in December. The rains are usually moderate. December as well as March, October, and November is considered the most uncomfortable time to visit Kaliningrad.