December in Flekkefjord is the rainiest and the cloudiest month of the year. In December, the weather in Flekkefjord is typically cold. Average daily high temperature in December is about 2 degrees above zero. On average, Flekkefjord has 24 rainy, 4 sunny, 1 snowy, 1 cloudy, and 1 partly cloudy day in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Flekkefjord.