Argentina Weather

As the largest Spanish-speaking country in South America, with an area of over one million square miles, Argentina has a remarkably varied climate. Its different regions range from the arid deserts in the northwest to the glaciers of Patagonia.

Buenos Aires, along with the pampas that lie inland from the Atlantic coast, is in the country’s temperate central zone. The summers (December to March) there can be quite hot and humid, with temperatures occasionally climbing to 100 degrees. As a result, the city tends to empty out after Christmas as porteños seek refuge at the beach. If you go during these months, be sure to pack lots of light clothing and sun screen. By contrast, the winters (June to August) in the region are mild, with temperatures rarely dipping below 40—though there are occasional nights when they go down to freezing, especially outside the city. A lined jacket should suffice for norteamericanos who elect to spend their summer vacation in South America’s tango capital.

Unlike the temperate plains, the northern part of Argentina is subtropical, which means high heat and humidity during the summer months. If you’re visiting Iguazú Falls, your best bet is to go during the winter or early spring (August to October), when the days are milder and the crowds smaller. Meanwhile, Salta in the northwest is in a desert, so the winter months at this gateway city to the Andes are pleasant and dry.

If you’re planning on hitting the southern part of Argentina—Patagonia and the southern Andes—consider going during the summer, when you’ll be able to enjoy longer days and balmier temperatures. Be advised that many areas in the south also have rain year round. Of course, if you’re heading down to Ushuaia & Tierra del Fuego, layered clothing and waterproof outerwear are a must.

Average monthly temperatures (°F) and rainfall (inches) for select locations in Argentina are shown below.

Buenos Aires

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High878480736660596366737883
Low696763575146454850556165
Rain444332222443

Cordoba

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High858380767064646871788184
Low636259534740394346535862
Rain544210001346

El Calafate

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High676661544641414451586265
Low464641373228272932374144
Rain000111110000

Iguazu

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High898887817569727578838689
Low696866625651515456616467
Rain775876555785

Mendoza

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High908781746660596469788589
Low656459514237364044535964
Rain221100001011

Puerto Madryn

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High818175706155555963687581
Low575552464137363741455054
Rain011111101100

Salta

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High818077736966687374808282
Low626060544539384144535859
Rain764100000125

San Martin

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High908882756760596569788689
Low646258514236354043515762
Rain121000101011

Ushuaia

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High595754504340404348525556
Low424138363230303033363941
Rain112222222112

Source: Weatherbase.

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