Weather in Argentina in September

Spring arrives in Argentina with a burst of energy and colors in September. A trip to this South American country during this month means being surrounded by blossoming flowers and renewed life. Here is our guide to the weather in Argentina in September, with tips from our local travel experts.

Discover Argentina in September

September in Argentina offers a combination of mild temperatures, reduced rainfall, and the blossoming of nature. It is an ideal time to explore the diverse landscapes and vibrant culture of this South American gem.

Benefits of visiting Argentina in September

Your choice to visit Argentina in February depends on your preferences and the type of experience you're after, with both advantages and disadvantages to consider. Here are some benefits:

September is the start of spring

As you set foot in Argentina in September, you step into the enchanting embrace of the beginning of spring. The landscapes, once adorned with winter hues, burst into a riot of colors as flowers bloom, and trees regain their vibrancy. Experience the magic of Buenos Aires, where parks and boulevards come alive with blossoms, creating a lively and invigorating atmosphere. 

It’s a great time to see the greenery at Iguazu Falls

Spring is a great time to see the mesmerizing transformation of iconic destinations like Iguazu Falls as you visit Argentina in September. The lush greenery surrounding the falls becomes more vibrant, enhancing the already awe-inspiring spectacle. 

On your spring trip, you can traverse the walkways that lead you to breathtaking viewpoints, surrounded by flourishing flora. September provides you with the opportunity to marvel at the sheer beauty of Iguazu Falls amidst the lush, verdant landscapes.

It is a good time to see the penguins

If you plan your trip to Argentina in September, particularly to spots like Punta Tombo, you may witness the charming spectacle of penguin watching. This is the time when Magellanic penguins return to their nesting sites after months at sea. 

Walk among these adorable creatures as they go about their daily lives, providing you with a unique and heartwarming encounter with wildlife. 

Downsides of visiting Argentina in September

Visiting Argentina in September has some unique considerations as it marks the transition from winter to spring in the Southern Hemisphere. While the weather generally improves during this month, there are still some downsides to be aware of:

The weather can be unpredictable

September is a transitional month, and weather conditions can be somewhat unpredictable. While temperatures generally rise, you might still experience occasional cold days or rain, particularly in the earlier part of the month.

There is still snow in some regions

In higher-altitude areas and mountainous regions, it's possible to encounter lingering snow in early September. This can affect access to certain outdoor activities and trekking routes.

Not a good time for skiing

If you were hoping to experience winter sports, be aware that the ski season in the Andes typically winds down in September. Ski resorts may start closing, and snow conditions can become less reliable.

Ready for a September escapade? Delve into additional suggestions for the greatest September travel destinations.

Weather in Argentina in September

September marks the beginning of spring in the Southern Hemisphere, bringing a delightful transition from the cooler months to warmer, more pleasant temperatures.

Temperatures and humidity in North, Central, and Southern Argentina

Here is the weather in Argentina in September, categorized by geographical region:

North Argentina

In September, northern Argentina experiences a transition from winter to spring. Temperatures begin to rise, ranging from 10°C to 20°C (50°F to 68°F), bringing milder and more pleasant conditions.

You’ll find the weather in Argentina in September brings a vibrant and lush environment in the northern parts of the country. Humidity levels are moderate, ranging from 30% to 50%, 

Central Argentina

Central Argentina sees the onset of spring in September, with temperatures gradually warming up. Cities such as Cordoba and Mendoza in central Argentina experience temperatures between 5°C to 15°C (41°F to 59°F). 

The climate becomes more temperate, providing comfortable conditions for outdoor activities. Humidity levels start to increase slightly, ranging from 30% to 50%

Southern Argentina

Southern Argentina also witnesses the end of winter and the beginning of spring in September. Southern regions like Bariloche and Neuquén witness a gradual warming in September, with temperatures ranging from 0°C to 10°C (32°F to 50°F). While temperatures may still be cool, the region experiences a shift towards milder weather. 

Temperatures around Buenos Aires

Buenos Aires, located in the eastern part of central Argentina, experiences temperatures around 10°C to 20°C (50°F to 68°F) in September. Residents and visitors can anticipate a comfortable climate, suitable for outdoor activities. Humidity levels may rise slightly, ranging from 40% to 60%.

Traveling to Buenos Aires? Don't miss the opportunity to choose the best places to stay in the city.

Temperatures in Patagonia

Patagonia, situated in the southern part of Argentina, sees a rise in temperatures during September, ranging from 0°C to 10°C (32°F to 50°F). While the weather may still be cool, the region sees a gradual shift towards milder conditions. 

The landscapes of Patagonia transform as spring unfolds, as humidity levels remain relatively low, ranging from 20% to 40%,

What about crowds and costs in September?

September brings the arrival of spring in Argentina, signaling the return of milder temperatures and blooming landscapes. Tourist crowds gradually increase as the country transitions to a more comfortable climate. 

Accommodation and travel costs may see a slight uptick compared to the winter months, but they generally remain reasonable. September can be a good time to plan your trip as it offers a balance between the emergence of springtime beauty and the affordability of travel.

Not sure when to travel? Arm yourself with info on when to go to Argentina around the year.

Best places to see in September

Here’s our selection of the finest places to include in your travel plans to take advantage of the weather in Argentina in September:

Buenos Aires

The capital city comes alive with blossoming flowers and pleasant temperatures in spring. You can explore iconic neighborhoods like Palermo, visit parks such as Bosques de Palermo, and enjoy outdoor activities.

Mendoza

Famous for its vineyards and wine production, Mendoza is stunning in spring with its vineyards in full bloom. Take a wine tour, enjoy outdoor activities in the Andes, and visit the Aconcagua Provincial Park.

Bariloche

Located in the Andes in the Patagonian region, Bariloche is a picturesque destination with lakes and mountains. In spring, you can witness the landscape coming to life with vibrant colors. Enjoy hiking, water sports, and the renowned chocolate in the city.

Considering visiting Argentina in September? Dive into our inspirational Argentina itineraries to start planning your perfect trip.

Best things to do in September

September is a great time to explore Argentina, and here’s our pick of the best things to do during your trip. For more inspiration, see our guide to the best things to do in Argentina.

Discover Salto del Tabaquillo

September provides an excellent opportunity to discover the hidden gem of Salto del Tabaquillo in Argentina. Nestled in the scenic Quebrada de San Vicente, this waterfall is surrounded by lush greenery and offers a refreshing natural retreat. Here you can hike through the subtropical forest, following the trails that lead to the waterfall. 

Hike in Quebrada de las Conchas

September marks the arrival of spring in Argentina, and it's the perfect time to hike through the stunning landscapes of Quebrada de las Conchas. Located in the Calchaquí Valley, this geological wonder showcases unique rock formations, such as the iconic Amphitheater and the Garganta del Diablo. 

Visit the Reserva Natural Otamendi

Nature enthusiasts can delve into the biodiversity of Argentina by visiting the Reserva Natural Otamendi in September. Located near Buenos Aires, this natural reserve is a haven for birdwatching and wildlife observation. 

Explore the diverse ecosystems, including wetlands, forests, and grasslands, as you encounter a variety of bird species and native wildlife.

Find even more ideas for your autumn adventure with our guide to the best places to travel in September.

Explore the Iberá Wetlands

September offers a wonderful opportunity to explore the Iberá Wetlands, one of the world's largest freshwater wetlands and a haven for wildlife. As spring unfolds, the wetlands come alive with blooming vegetation and abundant birdlife. Take boat tours to navigate through the waterways, spot caimans and capybaras, and appreciate the natural beauty of this ecologically rich region.

See the spring blossoms in Buenos Aires

In September, Buenos Aires bursts into color as spring blossoms adorn the city's parks and boulevards. You can take a stroll through the iconic Palermo Parks, visit the historic Rose Garden, and enjoy the vibrant atmosphere of the city awakening from winter. 

Witness the Jacaranda trees in full bloom, casting a purple hue over the streets. The mild spring weather makes it an ideal time to embrace the outdoor culture of Buenos Aires, from picnics in the parks to exploring the city's architectural and cultural gems.

Planning your trip to Argentina

Eager to explore Argentina? Let our tailor-made trip service spare you the hours of research needed for your dream vacation. Rely on us for planning and booking. Our journeys, carefully crafted by local travel experts, can be fully tailored to suit your preferences.

• Andean Triangle - Chile, Bolivia and Argentina (16 days): Commence your South American adventure in Santiago, explore the Atacama Desert, visit Bolivia's salt flat, and continue to Argentina, exploring Salta and Buenos Aires.
• The Great Lakes and Glaciers of Argentina (10 days): Experience Argentina's stunning outdoors, from Patagonian landscapes to Bariloche's lakes and the awe-inspiring Perito Moreno Glacier.
• Unforgettable Argentina (16 days): Discover Argentina's highlights in two weeks, from Buenos Aires to Iguazu Falls, then south to Puerto Madryn, Ushuaia, and El Calafate.

Or browse our other Argentina itineraries for more inspiration.

Events and festivals in September

Here are some of the events and festivals you can experience in Argentina in February:

Festival Internacional de Jazz de Buenos Aires

Buenos Aires welcomes jazz enthusiasts in September with the Festival Internacional de Jazz, featuring international and local jazz artists in a series of concerts, performances, and events that celebrate the diverse and dynamic world of jazz music.

Festival Nacional de la Música del Litoral

Resistencia, Chaco, hosts the Festival Nacional de la Música del Litoral in September, a celebration of the music traditions of the Litoral region with performances, dance, and cultural events that showcase the vibrant musical heritage of the area.

Fiesta Nacional del Olivo

Coronel Suárez, Buenos Aires, celebrates the Fiesta Nacional del Olivo in September, a festival honoring the olive tree and its products with tastings, agricultural exhibitions, and cultural activities that highlight the importance of olives in the local economy.

Fiesta Nacional de la Yerba Mate

Apóstoles, Misiones, hosts the Fiesta Nacional de la Yerba Mate in September, a festival that pays tribute to Argentina's beloved yerba mate through cultural events, mate tastings, and activities that showcase the cultural and economic significance of this traditional beverage.