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Weather & Climate in El Chaltén, Argentina
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
El Chaltén has a cool climate with an average annual temperature of 41°F (5°C). Winters average 50°F in January while summers reach 33°F in July / relatively mild seasonal variation. The area gets 273 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 34.7 inches. The area receives 9.6 inches of snow annually. The city sits at an elevation of 1,316 feet.
Temperature
50°F Jan (10°C)
33°F Jul (0°C)
| Annual Average | 41.4°F |
| 23% below US avg | |
| January Average | 50°F (10°C) |
| July Average | 33°F (0°C) |
| Sunny Days | 273 days/yr |
Geography
| Elevation | 1,316 ft (401 m) |
| Area | 8.8 sq mi (22.9 km²) |
| Population Density | 91/sq mi |
| Coordinates | -49.3299°N, 72.8861°W |
| Timezone | America/Argentina/Rio_Gallegos |
Precipitation & Snow
Air Quality
Earthquake History
6 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.5.
| Jul 30, 1992 | 13 km E of El Calafate, Argentina | M5.5 | 128 km | 10 km |
| Jan 25, 1992 | 12 km SE of El Calafate, Argentina | M5.1 | 132 km | 33 km |
| Aug 31, 2004 | 32 km S of El Calafate, Argentina | M4.7 | 150 km | 19 km |
| Jan 19, 2025 | 26 km SE of El Calafate, Argentina | M4.4 | 145 km | 10 km |
| Apr 9, 1999 | 14 km SSE of El Calafate, Argentina | M4.3 | 135 km | 33 km |
| Jun 10, 2015 | 31 km S of El Calafate, Argentina | M4.2 | 150 km | 17 km |
| Nov 4, 1995 | 172 km WNW of El Calafate, Argentina | M4.2 | 138 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 2.0 m (7 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2013 | LAGO ARGENTINO | Meteorological | 2.0 m | — | 76 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Aguilera (127 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Aguilera | Stratovolcano | 2,546 m (8,353 ft) | -1250 | 127 km |
| Reclus | Pyroclastic cone | 1,000 m (3,281 ft) | 1908 | 188 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 50°F (10°C) | 2.5 in | Warmest |
| February | 49°F (10°C) | 2.8 in | |
| March | 46°F (8°C) | 3.1 in | |
| April | 42°F (6°C) | 3.8 in | Wettest |
| May | 36°F (2°C) | 3.5 in | |
| June | 33°F (0°C) | 3.6 in | |
| July | 33°F (0°C) | 3.2 in | Coldest |
| August | 33°F (1°C) | 2.8 in | |
| September | 37°F (3°C) | 2.2 in | Driest |
| October | 43°F (6°C) | 2.8 in | |
| November | 45°F (7°C) | 2.3 in | |
| December | 48°F (9°C) | 2.3 in |
El Chaltén has a seasonal temperature swing of 18°F / from 33°F in July to 50°F in January. Total annual precipitation is 34.7 inches, with April being the wettest month (3.8") and September the driest (2.2").