August in Cold Bay is the warmest month of the year. In August, the weather in Cold Bay is typically warm. Average daily high temperature in August is about 13 degrees above zero. On average, Cold Bay has 17 rainy, 9 cloudy, 4 partly cloudy, and 1 sunny day in August. The rains are usually heavy. August as well as April, May, June, and July is considered the most uncomfortable time to visit Cold Bay.