In May, the weather in Nanortalik is typically cold. Average daily high temperature in May is about 5 degrees above zero. On average, Nanortalik has 12 cloudy, 8 partly cloudy, 6 rainy, and 5 sunny 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.