In September, the weather in Kirkjubour is typically warm. Average daily high temperature in September is about 10 degrees above zero. On average, Kirkjubour has 18 rainy, 8 partly cloudy, 2 sunny, and 2 cloudy days in September. The rains are usually heavy. September as well as January, February, March, and April is considered the most uncomfortable time to visit Kirkjubour.