July in San Martin De Los Andes is the coldest month of the year. In July, the weather in San Martin De Los Andes is typically cold. Average daily high temperature in July is about 2 degrees above zero. On average, San Martin De Los Andes has 23 rainy, 4 sunny, and 4 cloudy days in July. The rains are usually heavy. July as well as May, June, August, and September is considered the most uncomfortable time to visit San Martin De Los Andes.