March in El Chalten is the cloudiest month of the year. In March, the weather in El Chalten is typically cold. Average daily high temperature in March is about 6 degrees above zero. On average, El Chalten has 13 rainy, 8 cloudy, 8 partly cloudy, 1 snowy, and 1 sunny day in March. The rains are usually heavy. March as well as January, February, April, and October is considered the most uncomfortable time to visit El Chalten.