April in Bronnoysund is the sunniest month of the year. In April, the weather in Bronnoysund is typically cold. Average daily high temperature in April is about 5 degrees above zero. On average, Bronnoysund has 14 rainy, 7 sunny, 6 partly cloudy, and 3 cloudy days in April. The rains are usually heavy. April as well as January, February, March, and May is considered the most uncomfortable time to visit Bronnoysund.