In April, the weather in San Martin De Los Andes is typically warm. Average daily high temperature in April is about 11 degrees above zero. On average, San Martin De Los Andes has 10 rainy, 8 sunny, 7 partly cloudy, and 5 cloudy days in April. The rains are usually heavy. April as well as May, June, July, and August is considered the most uncomfortable time to visit San Martin De Los Andes.