August in Pertozero is the rainiest month of the year. In August, the weather in Pertozero is typically warm. Average daily high temperature in August is about 17 degrees above zero. On average, Pertozero has 18 rainy, 7 sunny, 4 partly cloudy, and 2 cloudy days in August. The rains are usually heavy. August as well as January, April, May, and September is considered the most uncomfortable time to visit Pertozero.