In May, the weather in Flekkefjord is typically warm. Average daily high temperature in May is about 11 degrees above zero. On average, Flekkefjord has 15 rainy, 9 sunny, 6 partly cloudy, and 1 cloudy day in May. The rains are usually heavy. May as well as January, February, March, and April is considered the most uncomfortable time to visit Flekkefjord.