In May, the weather in Qaqortoq is typically cold. Average daily high temperature in May is about 5 degrees above zero. On average, Qaqortoq has 12 partly cloudy, 9 sunny, 8 rainy, and 2 cloudy days in May. The rains are usually moderate. May as well as April, June, July, and August is considered the most uncomfortable time to visit Qaqortoq.