In April, the weather in Chignik Lagoon is typically cold. Average daily high temperature in April is about 2 degrees above zero. On average, Chignik Lagoon has 15 rainy, 9 snowy, 4 sunny, and 2 partly cloudy days in April. The rains are usually heavy. April as well as May, June, July, and August is considered the most uncomfortable time to visit Chignik Lagoon.