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Monthly climate in El Chalten, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification El Chalten features a cold semi-arid climate (BSk). Temperatures typically range between -4 °C (25 °F) and 6 °C (42 °F) through the year, but rarely can drop to -16 °C (4 °F) or can rise to as high as 20 °C (69 °F). The average annual precipitation amounts to about 3013 mm (118.6 inches) and receives 259 rainy days on the 1 mm (0.04 inches) threshold annually. El Chalten enjoys an average of 1887 hours of sunshine throughout the year, and daylight varies from 8 hours 13 minutes to 16 hours 9 minutes per day.

Monthly average temperatures in El Chalten, Argentina

The warmest months in El Chalten are January, February and March, with daily mean temperatures ranging from 4 to 6 °C (39 - 42 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from -4 to -3 °C (25 - 28 °F) throughout the day. On average each year, El Chalten experiences 0 days above 25 °C (77.0 °F) and 240 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in El Chalten. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum16°C
(61°F)		20°C
(69°F)		14°C
(57°F)		12°C
(54°F)		8°C
(46°F)		4°C
(40°F)		7°C
(45°F)		6°C
(43°F)		8°C
(47°F)		8°C
(47°F)		11°C
(51°F)		16°C
(62°F)
Mean maximum13°C
(56°F)		17°C
(62°F)		13°C
(56°F)		10°C
(50°F)		6°C
(43°F)		2°C
(36°F)		4°C
(39°F)		5°C
(41°F)		6°C
(44°F)		7°C
(45°F)		9°C
(49°F)		12°C
(53°F)
Average high8°C
(46°F)		9°C
(49°F)		7°C
(46°F)		4°C
(40°F)		2°C
(35°F)		-2°C
(29°F)		-1°C
(30°F)		0°C
(33°F)		2°C
(36°F)		3°C
(38°F)		5°C
(41°F)		7°C
(44°F)
Daily mean4°C
(40°F)		6°C
(42°F)		4°C
(39°F)		1°C
(34°F)		-1°C
(30°F)		-4°C
(25°F)		-4°C
(26°F)		-3°C
(28°F)		-1°C
(30°F)		-0°C
(32°F)		2°C
(35°F)		4°C
(39°F)
Average low0°C
(33°F)		2°C
(35°F)		0°C
(33°F)		-2°C
(28°F)		-4°C
(25°F)		-7°C
(20°F)		-6°C
(21°F)		-5°C
(23°F)		-5°C
(24°F)		-3°C
(26°F)		-2°C
(29°F)		-0°C
(32°F)
Mean minimum-6°C
(21°F)		-4°C
(25°F)		-6°C
(21°F)		-8°C
(18°F)		-11°C
(13°F)		-14°C
(7°F)		-13°C
(10°F)		-11°C
(12°F)		-11°C
(13°F)		-10°C
(14°F)		-6°C
(21°F)		-6°C
(22°F)
Minimum-10°C
(13°F)		-7°C
(20°F)		-10°C
(15°F)		-14°C
(8°F)		-14°C
(7°F)		-16°C
(4°F)		-14°C
(6°F)		-15°C
(6°F)		-12°C
(10°F)		-16°C
(4°F)		-8°C
(18°F)		-7°C
(20°F)

Compare climate in El Chalten with other places

Compare temperature, precipitation, sunshine, UV index in El Chalten, Argentina with other places around the world.

Monthly average precipitation in El Chalten, Argentina

El Chalten usually has the most precipitation in April, May and August, with an average of 22 rainy days and 283 mm (11.2 inches) of precipitation per month. The driest months in El Chalten are February, September and November. On average, 221 mm (8.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in El Chalten. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)249 (9.8)192 (7.6)261 (10.3)313 (12.3)266 (10.5)241 (9.5)248 (9.8)270 (10.6)235 (9.2)243 (9.6)235 (9.2)259 (10.2)
Average precipitation days (≥ 1 mm)211920222122222422232122

Monthly sunshine hours in El Chalten, Argentina

The sunniest months in El Chalten are February, November and December, when the sun shines an average of 7 hours 4 minutes a day. Least sunny months in El Chalten: May, June and July receive an average of 3 hours 6 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in El Chalten. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours1672091851391029191110158203216210
Mean daily daylight hours15h 40m14h 10m12h 21m10h 32m9h 0m8h 13m8h 38m10h 1m11h 46m13h 36m15h 16m16h 9m

Solar UV radiation in El Chalten, Argentina

El Chalten experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 16 - 17, which corresponds to the Extreme category of sun exposure. May, June and July are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly El Chalten UV Index data.

Average daily maximum UV levels by month for El Chalten. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)161310632247101716