In May, the weather in Chignik Lagoon is typically cold. Average daily high temperature in May is about 7 degrees above zero. On average, Chignik Lagoon has 14 rainy, 8 cloudy, 4 sunny, 4 partly cloudy, and 1 snowy day in May. The rains are usually heavy. May as well as April, June, July, and August is considered the most uncomfortable time to visit Chignik Lagoon.