July in El Chalten is the coldest month of the year. In July, the weather in El Chalten is typically cold. Average daily high temperature in July is about 1 degree above zero. On average, El Chalten has 12 rainy, 8 sunny, 8 partly cloudy, 2 cloudy, and 1 snowy day in July. The rains are usually moderate. July as well as April, May, June, and August is considered the most uncomfortable time to visit El Chalten.