August in San-Carlos-de-Bariloche is the cloudiest month of the year. In August, the weather in San-Carlos-de-Bariloche is typically cold. Average daily high temperature in August is about 4 degrees above zero. On average, San-Carlos-de-Bariloche has 12 cloudy, 10 partly cloudy, 8 rainy, 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 San-Carlos-de-Bariloche.