In August, the weather in Nanortalik is typically cold. Average daily high temperature in August is about 8 degrees above zero. On average, Nanortalik has 12 rainy, 10 partly cloudy, 7 sunny, and 2 cloudy days in August. The rains are usually heavy. August as well as May, June, July, and September is considered the most uncomfortable time to visit Nanortalik.