In June, the weather in Bronnoysund is typically warm. Average daily high temperature in June is about 11 degrees above zero. On average, Bronnoysund has 17 rainy, 6 sunny, 4 cloudy, and 3 partly cloudy days in June. The rains are usually heavy. June as well as March, April, May, and September is considered the most uncomfortable time to visit Bronnoysund.