Snow Blankets Atacama Desert in Rare August Weather Event

The Atacama Desert in Chile experienced rare and widespread snowfall in late August 2026, according to NASA Science (.gov). The event, reported on August 28, 2026, brought snow across one of the driest places on Earth, a phenomenon that drew attention from multiple scientific outlets.

NASA Science (.gov) reported the snowfall as a rare meteorological occurrence for the region. The event was significant enough to impact major astronomical facilities located in the desert, with the European Southern Observatory (ESO) noting that its Extremely Large Telescope site saw snow, as covered by heise online. Nautilus | Science also described the event as a meteorological rarity.

The snowfall has implications for the desert's ecosystem. Travel2Latam reported on the "Flowering Desert" phenomenon in Chile for 2026, a bloom that can follow such precipitation events. The connection between the snow and potential desert blooms is a point of interest for scientists and observers.

atacama desert

The Atacama Desert is known for its extreme aridity and clear skies, which make it a prime location for astronomical observation. The presence of snow at observatory sites, including the Extremely Large Telescope under construction, highlights the unusual nature of this weather event.

Observers and researchers are now watching to see whether the snow leads to a notable flowering event in the coming weeks, as has happened in past years following unusual rainfall. The full impact of this rare snowfall on the desert's environment and its astronomical infrastructure remains to be seen.