In August, the weather in Capitan Pastene is typically warm. Average daily high temperature in August is about 11 degrees above zero. On average, Capitan Pastene has 15 rainy, 6 sunny, 6 partly cloudy, and 4 cloudy days in August. The rains are usually heavy. August as well as May, June, and July is considered the most uncomfortable time to visit Capitan Pastene.