San Pedro de Atacama is a small adobe town in northern Chile that serves as the gateway to the Atacama — the driest non-polar desert on Earth. Some weather stations here have gone years without measurable rain, and parts of the desert are so Mars-like that NASA uses them to test equipment. The payoff for travelers: surreal landscapes, volcanic horizons and some of the clearest night skies anywhere in the world.
Here's how to plan it.
Atacama is a year-round destination thanks to its dry climate. Days are warm and nights are cold all year. The "altiplanic winter" (roughly January–February) can bring brief afternoon rain to the high country, occasionally affecting access to higher sights — worth planning around if those are priorities.
San Pedro sits at ~2,400 m, but many of the best sights are well above 4,000 m. Acclimatize before going high. Spend your first day or two on lower-altitude outings (like Valle de la Luna), hydrate well, go easy on alcohol, and save El Tatio and the high lagoons for once you've adjusted. This is exactly the kind of sequencing a local operator builds into your itinerary so you feel good, not wrecked.
Planning a wider trip? See our best South America destinations for 2026, or explore our Atacama trips.
It's the driest non-polar desert on Earth; some areas have gone years without recorded rainfall.
Three to four days lets you cover the main sights while acclimatizing properly.
Yes — for otherworldly landscapes, flamingo-filled salt flats and world-class stargazing.
The town is ~2,400 m; key sights like El Tatio reach ~4,300 m, so acclimatization matters.