In May, the weather in Unalakleet is typically cold. Average daily high temperature in May is about 7 degrees above zero. On average, Unalakleet has 8 sunny, 8 cloudy, 8 partly cloudy, and 7 rainy days in May. The rains are usually light. May as well as January, February, July, and August is considered the most uncomfortable time to visit Unalakleet.