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Palacio del Congreso and the city from above, Buenos Aires

Southern Cone itinerary — March 2027

For the Southern Cone trip (Buenos Aires & Santiago), March 2027 is mixed for weather comfort. Daytime highs run from about 27°C / 81°F to 29°C / 84°F across the stops. Plan around 7–9 days for the full Buenos Aires & Santiago loop.

In this order — about 7–9 days:

  1. Buenos Aires4 nightsArgentina
  2. Santiago3 nightsChile
  • Route noteReserve the longest intercity leg first and keep transfer days free of timed sights.
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By TripSapien Research · Updated May 20, 2026

1

Buenos Aires

Buenos Aires in March

Temp

81°F / 64°F

27°C / 17.7°C

Rain

7d

4.7in · 120mm

Light

12.3h

Sea

74.8°F

23.8°C

March eases into late summer, a good month for Tigre trains and outdoor tables after rain clears.

City overview

Buenos Aires is a Rio de la Plata port city whose identity comes from immigrant theatres, political plazas, tango halls, and apartment-lined barrios rather than one monumental old core. Recoleta and Palermo carry the leafy cafe-and-gallery stay, San Telmo and La Boca keep the tango and port history visible, and Puerto Madero adds the glass-and-dockland skyline beside the Costanera Sur reserve.

Food & drink

Buenos Aires eating revolves around asado, bife de chorizo, choripán, empanadas, milanesa, fugazzeta pizza, dulce de leche, and late-night helado. Mercado de San Telmo, Don Julio in Palermo, Güerrin on Avenida Corrientes, and neighborhood parrillas around Recoleta and Palermo show the range without leaving the city.

Events & festivals

  • Mar 12 – Mar 14

    Lollapalooza Argentina 2027

    Founded in 2014 as part of the global Lollapalooza brand, it brings together a diverse mix of international superstars and local talent across genres like rock, pop, hip-hop, electronic, and more on multiple stages.

    Source: TripSapien festival dataset

  • Mar 17 – Mar 20

    Buenos Aires St. Patrick's Day Parade

    Associated occasion: St.

    Planning lead · projected date · Source: TripSapien festival dataset

Holidays & observances

  • Mar 24Day of Remembrance for Truth and JusticePublic holiday
  • Mar 25Maundy ThursdayBank holiday
  • Mar 26Good FridayPublic holiday

Top sights

Ranked for March suitability using weather, setting, ratings, and review volume.

Map of Buenos Aires with pinned top attractions (1 through 10)
  1. 1Teatro Colón
  2. 2El Ateneo Grand Splendid
  3. 3Museo Nacional de Bellas Artes
  4. 4MALBA
  5. 5Caminito
  6. 6La Bombonera
  7. 7Puente de la Mujer
  8. 8Plaza de Mayo and Casa Rosada
  9. 9Palacio Barolo
  10. 10Recoleta Cemetery
  • Teatro Colón in Buenos Aires1

    Teatro Colón

    4.8indoor

    The opera house opened in 1908 after work by architects Francesco Tamburini, Vittorio Meano, and Jules Dormal, and its horseshoe auditorium is famous for acoustic clarity. It stands beside Plaza Lavalle, a few blocks from the Obelisco and Avenida 9 de Julio.

    Wikipedia
  • El Ateneo Grand Splendid in Buenos Aires2

    El Ateneo Grand Splendid

    4.8indoorOpen daily

    The Grand Splendid theatre opened in 1919, hosted tango and cinema, and became a bookshop in 2000 without losing the frescoed ceiling, balconies, or stage cafe. It stands on Avenida Santa Fe in Recoleta.

    Wikipedia
  • Museo Nacional de Bellas Artes in Buenos Aires3

    Museo Nacional de Bellas Artes

    4.8indoorClosed Mon

    The national fine-arts museum moved in 1933 into a former Recoleta pumping station adapted by architect Alejandro Bustillo. Its rooms hold Argentine painting, European masters, and sculpture beside Plaza Francia.

Show 7 more sights
  • 4MALBA
  • 5Caminito
  • 6La Bombonera
  • 7Puente de la Mujer
  • 8Plaza de Mayo and Casa Rosada
  • 9Palacio Barolo
  • 10Recoleta Cemetery

Getting around

Use a SUBE card for Subte lines, colectivos, commuter trains, and airport buses; Line D is useful for Palermo and Recoleta, while Line A follows Avenida de Mayo. Taxis and rideshares are practical after late dinners, and La Boca is better reached by bus or taxi than by a long walk from San Telmo.

Full things to do in Buenos Aires, March 2027
2

Santiago

Santiago in March

Temp

84°F / 51°F

28.9°C / 10.6°C

Rain

1d

0.2in · 6mm

Light

12.2h

March is warm and stable, good for Lastarria walks and Andes views before winter smog builds.

City overview

Santiago fills Chile central valley between the Andes and the coastal range, with the Mapocho River, hill parks, vineyards, and a long east-west metro spine shaping most visits. The useful first map is Santiago Centro for civic monuments, Lastarria and Bellavista for culture and nightlife, Providencia for transit and food, and Las Condes or Vitacura for the modern business edge.

Food & drink

Santiago food moves between completo hot dogs, pastel de choclo, cazuela, empanadas de pino, humitas, churrasco sandwiches, seafood, and Chilean wine. Mercado Central, La Vega, Fuente Alemana, Barrio Italia, Bellavista, and Providencia wine bars give the clearest first route.

Events & festivals

  • Mar 12 – Mar 14

    Lollapalooza Chile 2027

    If August is too long to wait for the flagship Lollapalooza (and you’re dying to take a trip to Chile) head to this South American edition.

    Source: TripSapien festival dataset

Holidays & observances

  • Mar 26Good FridayPublic holiday
  • Mar 28Easter SundayPublic holiday

Top sights

Ranked for March suitability using weather, setting, ratings, and review volume.

Map of Santiago with pinned top attractions (1 through 10)
  1. 1Cerro San Cristóbal
  2. 2Costanera Center and Sky Costanera
  3. 3Cerro Santa Lucía
  4. 4La Moneda Palace
  5. 5Mercado Central and La Vega
  6. 6Plaza de Armas
  7. 7Metropolitan Cathedral of Santiago
  8. 8Museo Chileno de Arte Precolombino
  9. 9La Chascona
  10. 10Barrio Lastarria and GAM
  • Cerro San Cristóbal in Santiago1

    Cerro San Cristóbal

    4.7outdoor

    The hill rises above Bellavista and Providencia with a funicular, cable car, sanctuary, pools, and the largest views across the basin. Smog and winter haze can limit the Andes panorama.

    Wikipedia
  • Costanera Center and Sky Costanera in Santiago2

    Costanera Center and Sky Costanera

    4.7outdoorOpen daily

    The tower in Providencia is the tallest building in South America and has an observation deck above a large mall. It gives a practical weather check for Andes visibility.

  • Cerro Santa Lucía in Santiago3

    Cerro Santa Lucía

    4.6outdoor

    The small central hill was remade in the 19th century with terraces, fountains, stairs, and viewpoints. It is a short walk from Lastarria and the Universidad Católica metro stop.

    Wikipedia
Show 7 more sights
  • 4La Moneda Palace
  • 5Mercado Central and La Vega
  • 6Plaza de Armas
  • 7Metropolitan Cathedral of Santiago
  • 8Museo Chileno de Arte Precolombino
  • 9La Chascona
  • 10Barrio Lastarria and GAM

Neighborhoods

Getting around

Metro de Santiago and RED buses use the Bip! card, with Line 1 tying Centro, Providencia, and Las Condes together. Air quality and long distances make metro-first planning smarter than relying on taxis across the whole basin.

Full things to do in Santiago, March 2027

Planning the Southern Cone route?

Add your dates and we'll pace all 2 cities — every place checked for closures, limited hours, and booking needs in March.

Weather by month for the Southern Cone trip

In March, the Southern Cone trip runs daytime highs from 27°C / 81°F to 29°C / 84°F, with nights down to about 11°C / 52°F at the coolest stop. Climate averages show about 7 rainy days at the rainiest stop. Weighed across both stops, March is mixed for weather comfort.

The most comfortable months across Buenos Aires & Santiago are November, April and September, based on average daytime temperatures and rainfall at every stop. March 2027 is mixed for weather comfort.

Comfort by month — pick one to open that month's plan.

IdealMarch

Common questions about the Southern Cone trip

When is the best time to do the Southern Cone trip?
The most comfortable months across Buenos Aires, Santiago are November, April and September, based on average daytime temperatures and rainfall at each stop. March is mixed for weather comfort — see the per-stop weather below for the climate averages in March 2027.
How many days do you need for the Southern Cone trip?
A comfortable Southern Cone trip runs about 7–9 days, allowing roughly Buenos Aires 4, Santiago 3 nights plus travel between stops. Add a day if you want a slower pace or extra day trips.
What's the route for the Southern Cone trip?
The classic order is Buenos Aires & Santiago. Each city below has its own March weather, any available event listings, and a top-sights list.

Ready to plan the Southern Cone trip?

Turn this route into a day-by-day plan for March 2027, every stop checked for closures and booking needs on your exact dates.

This trip in other months

Each city this month

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