May in San-Carlos-de-Bariloche is the rainiest month of the year. In May, the weather in San-Carlos-de-Bariloche is typically cold. Average daily high temperature in May is about 7 degrees above zero. On average, San-Carlos-de-Bariloche has 12 rainy, 8 partly cloudy, 7 cloudy, and 4 sunny days in May. The rains are usually heavy. May as well as April, June, July, and August is considered the most uncomfortable time to visit San-Carlos-de-Bariloche.