Argentina Weather, climate and geography
Weather and climate
Best time to visit
Argentina's climate varies significantly from subtropical in the north to subpolar in the south, with a wide range of temperatures and weather conditions.
Northern Argentina:
The north experiences a subtropical climate with hot summers (December to February) where temperatures can reach 30-40°C (86-104°F), and mild winters (June to August) with temperatures around 10-20°C (50-68°F). The rainy season is from December to March, particularly in Misiones Province near the Iguazu Falls.
Central Argentina (Buenos Aires and The Pampas):
The central region has a temperate climate with hot, humid summers (December to February) with temperatures of 25-35°C (77-95°F), and cool winters (June to August) with temperatures ranging from 5-15°C (41-59°F). Rainfall is moderate, with showers throughout the year. The best time to visit Buenos Aires is from March to May.
Andes Mountains:
The Andes experience cold winters (June to August) with snow in the higher elevations, ideal for skiing around Bariloche. Summer temperatures (December to February) vary widely, from cool (15-20°C / 59-68°F) in the mountains to warm (25-30°C / 77-86°F) in the foothills, such as in Mendoza. If you are after the colourful foliage in the Lake District, go between March and May.
Patagonia and Tierra del Fuego:
The southern region has a cool to cold climate, with mild summers (December to February) bringing 10-20°C (50-68°F), and harsh winters (June to August) with temperatures dropping to -5 to 5°C (23-41°F). The weather in Patagonia can be unpredictable, with strong winds year-round. The best time to visit Patagonia and Tierra del Fuego is from December to February when the region experiences mild temperatures and long daylight hours.
Required clothing
Argentina's diverse climate means that clothing needs vary by region and season.
Northern Argentina:
Lightweight clothing is ideal for the subtropical north, especially during hot and humid summers. Opt for breathable fabrics, sun hats, and sunscreen. For the rainy season (December to March), pack a light waterproof jacket and sturdy shoes.
Central Argentina (Buenos Aires and The Pampas):
Light layers are recommended for summer (December to February), with cooler evenings in Buenos Aires. During winter (June to August), a warm jacket, sweaters, and closed shoes are advisable, as temperatures can drop significantly.
Andes Mountains:
The Andes require versatile clothing, including warm layers, a waterproof jacket, and sturdy footwear for hiking or skiing. Even in summer, evenings can be cool, so thermal layers and a hat are useful.
Patagonia and Tierra del Fuego:
The southern region is known for its unpredictable weather and strong winds. Pack warm, windproof, and waterproof clothing, including thermal layers, gloves, scarves, and a good quality jacket. Sturdy, waterproof shoes are essential for hiking and exploring outdoor areas.
Regardless of the season, comfortable walking shoes are recommended for city exploring, and a swimsuit may come in handy if visiting thermal springs or coastal areas.
Geography
Argentina is the eighth-largest country in the world and the second-largest in South America, covering approximately 2.78 million square km (1.07 million square miles). It shares borders with Chile to the west, Bolivia and Paraguay to the north, Brazil and Uruguay to the northeast, and the Atlantic Ocean to the east, giving it a diverse and dynamic landscape.
The Andes Mountains form the natural border with Chile and include Aconcagua, the highest peak in the Western Hemisphere, standing at 6,962 metres (22,841 feet). This mountain range offers stunning scenery, ski resorts, and trekking routes, including the Seven Colours Hill in Purmamarca.
In the south, Patagonia stretches from the Andes to the Atlantic, showcasing glacial landscapes, windswept steppes, and the coastal beauty of the Valdés Peninsula, a haven for wildlife enthusiasts. At the southernmost tip, Tierra del Fuego is often called the "End of the World", featuring the southernmost city, Ushuaia, as a gateway to Antarctica.
The central region is dominated by the fertile Pampas, known as Argentina's agricultural heartland, where vast plains support the country's famed cattle ranching and agriculture industries. To the northwest, the Lake District blends alpine charm with crystal-clear lakes and dense forests, particularly around Bariloche, a popular destination for outdoor activities.
In the northeast, near the border with Brazil, the Iguazu Falls are one of the New Seven Natural Wonders of the World, surrounded by lush subtropical rainforest. The country also boasts the Paraná River, one of South America's major waterways, and a long Atlantic coastline with beaches and resorts, such as Mar del Plata.
