Visiting Argentina in March: Weather, Events & Travel Tips

March marks the beginning of autumn in Argentina and represents one of the country’s most rewarding travel windows. The southern hemisphere’s summer is winding down, conditions become more manageable, and one of the country’s signature annual events takes place in the wine country.

Buenos Aires in March

The capital is noticeably more comfortable in March than the January–February peak. Average highs drop to around 26–28°C, humidity decreases, and the city is fully alive — residents are back from summer holidays, theatres reopen their seasons, and the street life in neighbourhoods like Palermo Soho and San Telmo returns to its normal rhythm.

March is a strong month for Buenos Aires tango. Milongas (tango dance events) run throughout the month, and the pre-autumn period is considered by many regular visitors to be the best time for experiencing the city’s culture without summer heat or winter grey.

Mendoza: Vendimia Season

The Fiesta Nacional de la Vendimia (National Grape Harvest Festival) runs in early March in Mendoza and is one of Argentina’s most significant cultural events. The main ceremony — the Gran Vendimia — takes place at the outdoor Anfiteatro Frank Romero Day and involves an elaborate theatrical production with thousands of performers. Tickets for the main show sell out well in advance.

Beyond the festival itself, March is the month when the Mendoza valley’s vineyards are actively harvesting. Many wineries — Zuccardi, Achaval Ferrer, Rutini, and others — offer harvest experience visits where you can pick grapes alongside the winery team. These need to be booked directly with the winery, usually weeks ahead.

Patagonia in March

Early March is still good for trekking in Patagonia. El Chaltén trails remain open and the landscapes take on early autumn colours — the lenga beech trees begin turning red and orange, which many photographers and hikers consider the most photogenic time of year. By mid-to-late March, weather in Patagonia becomes more variable and some accommodation in El Chaltén begins to close for the season.

El Calafate has a longer season — Perito Moreno Glacier is accessible year-round, so March remains a solid choice here. Lake-based activities in Bariloche also continue through March.

Northwest Argentina in March

The wet season continues in the northwest through March, with the Quebrada de Humahuaca and Salinas Grandes road potentially affected by rain. The landscapes are green and dramatic in this period. Most years the roads are passable but it’s worth checking conditions locally before driving.

Patagonia Autumn Colours

The window for autumn foliage in Patagonia is roughly mid-March to late April. The lenga beech forests around El Chaltén, Bariloche, and the Carretera Austral in Chile turn a full range of yellows, oranges, and deep reds. This is worth factoring into your timing if you’re combining Patagonia with Buenos Aires and Mendoza.

Practical Notes for March

• Mendoza Vendimia: Book accommodation in Mendoza for the first weekend of March as early as possible — the city fills up.
• Patagonia window: Plan Patagonia for early March if you want both good trekking and autumn colours. Late March sees trail closures begin.
• Buenos Aires arts: The Teatro Colón season typically begins in March or April. Check the official programme for current year dates.
• Crowds: March sees fewer foreign tourists than January or February, and prices for accommodation typically reflect this.
• Asado culture: March is one of the best months to experience Argentine asado (barbecue) culture — the heat has eased enough for extended outdoor gatherings, and the new harvest Malbec from Mendoza pairs naturally with the country’s signature grilled meats.
• Currency and cash: The same practical considerations as any other month — USD cash remains useful for casa de cambio exchanges.