September in Stokmarknes is the cloudiest month of the year. In September, the weather in Stokmarknes is typically warm. Average daily high temperature in September is about 11 degrees above zero. On average, Stokmarknes has 17 rainy, 7 partly cloudy, 4 cloudy, and 2 sunny days in September. The rains are usually heavy. September as well as January, February, March, and April is considered the most uncomfortable time to visit Stokmarknes.