August in Atka is the rainiest month of the year. In August, the weather in Atka is typically warm. Average daily high temperature in August is about 12 degrees above zero. On average, Atka has 15 rainy, 9 cloudy, 5 sunny, and 2 partly cloudy days in August. The rains are usually heavy. August as well as January, February, March, and April is considered the most uncomfortable time to visit Atka.