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 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

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High 87 84 80 73 66 60 59 63 66 73 78 83
Low 69 67 63 57 51 46 45 48 50 55 61 65
Rain 4 4 4 3 3 2 2 2 2 4 4 3

Cordoba

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High 85 83 80 76 70 64 64 68 71 78 81 84
Low 63 62 59 53 47 40 39 43 46 53 58 62
Rain 5 4 4 2 1 0 0 0 1 3 4 6

El Calafate

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High 67 66 61 54 46 41 41 44 51 58 62 65
Low 46 46 41 37 32 28 27 29 32 37 41 44
Rain 0 0 0 1 1 1 1 1 0 0 0 0

Iguazu

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High 89 88 87 81 75 69 72 75 78 83 86 89
Low 69 68 66 62 56 51 51 54 56 61 64 67
Rain 7 7 5 8 7 6 5 5 5 7 8 5

Mendoza

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High 90 87 81 74 66 60 59 64 69 78 85 89
Low 65 64 59 51 42 37 36 40 44 53 59 64
Rain 2 2 1 1 0 0 0 0 1 0 1 1

Puerto Madryn

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High 81 81 75 70 61 55 55 59 63 68 75 81
Low 57 55 52 46 41 37 36 37 41 45 50 54
Rain 0 1 1 1 1 1 1 0 1 1 0 0

Salta

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High 81 80 77 73 69 66 68 73 74 80 82 82
Low 62 60 60 54 45 39 38 41 44 53 58 59
Rain 7 6 4 1 0 0 0 0 0 1 2 5

San Martin

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High 90 88 82 75 67 60 59 65 69 78 86 89
Low 64 62 58 51 42 36 35 40 43 51 57 62
Rain 1 2 1 0 0 0 1 0 1 0 1 1

Ushuaia

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High 59 57 54 50 43 40 40 43 48 52 55 56
Low 42 41 38 36 32 30 30 30 33 36 39 41
Rain 1 1 2 2 2 2 2 2 2 1 1 2

Source: Weatherbase.

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