In May, the weather in Nanortalik is typically cold. Average daily high temperature in May is about 3 degrees above zero. On average, Nanortalik has 13 rainy, 9 cloudy, 6 sunny, and 3 partly cloudy days in May. The rains are usually moderate. May as well as June, July, August, and September is considered the most uncomfortable time to visit Nanortalik.