December in Leknes is the windiest month of the year. In December, the weather in Leknes is typically cold. Average daily high temperature in December is about 4 degrees above zero. On average, Leknes has 26 rainy, 3 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 Leknes.