San Pedro de Atacama Weather & Climate: Best Time to Visit

The weather in San Pedro de Atacama changes moderately throughout the year, offering enough variation to appreciate each season. Typically, average maximum daytime temperatures range from a comfortable 25°C (77°F) in December to a moderate 17°C (63°F) in the coolest month, July.

Nights vary from 10°C (50°F) in December to around 1°C (34°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

San Pedro de Atacama has a dry climate with very low precipitation, averaging 45 mm (1.8 in) of rain/snowfall annually. The climate in San Pedro de Atacama shows significant variation throughout the year. Expect low rainfall in February, the wettest month, with an average of 23 mm (0.9 in) of precipitation over 12 rainy days.

In contrast, the driest month April offers drier and sunnier days, with around 0 mm (0 in) of rainfall over 3 rainy days. For more details, please visit our San Pedro de Atacama Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

The relative humidity is low throughout the year in San Pedro de Atacama.

The city experiences its highest humidity in February, reaching 38%. In September, the humidity drops to its lowest level at 13%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year