December in Kristiansand is the rainiest month of the year. In December, the weather in Kristiansand is typically cold. Average daily high temperature in December is about 3 degrees above zero. On average, Kristiansand has 22 rainy, 5 sunny, 3 partly cloudy, and 1 cloudy day in December. The rains are usually heavy. December as well as January, February, March, and October is considered the most uncomfortable time to visit Kristiansand.