In August, the weather in Stokmarknes is typically warm. Average daily high temperature in August is about 12 degrees above zero. On average, Stokmarknes has 18 rainy, 6 sunny, 4 cloudy, and 3 partly cloudy days in August. The rains are usually heavy. August as well as January, February, March, and April is considered the most uncomfortable time to visit Stokmarknes.