In October, the weather in Bronnoysund is typically cold. Average daily high temperature in October is about 7 degrees above zero. On average, Bronnoysund has 22 rainy, 7 sunny, 1 cloudy, and 1 partly cloudy day in October. The rains are usually heavy. October as well as March, April, May, and June is considered the most uncomfortable time to visit Bronnoysund.