In August, the weather in Beitostolen is typically warm. Average daily high temperature in August is about 11 degrees above zero. On average, Beitostolen has 22 rainy, 4 sunny, 4 cloudy, and 1 partly cloudy day in August. The rains are usually heavy. August as well as May, June, July, and September is considered the most uncomfortable time to visit Beitostolen.