August in San-Carlos-de-Bariloche is the rainiest, the snowiest, and 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 2 degrees above zero. On average, San-Carlos-de-Bariloche has 23 rainy, 3 snowy, 3 cloudy, and 2 sunny days in August. The rains are usually heavy. August as well as May, June, July, and September is considered the most uncomfortable time to visit San-Carlos-de-Bariloche.