Early summer · Weather & things to do
Buenos Aires in December
Buenos Aires warms up: highs climb to 79°F (26°C), from 74°F in November, with lows of 68°F (20°C) and about 3.7 in (94 mm) of rain.
At 89/100 for comfort (the top score of the year), it's one of the best months to visit.
- Avg high
- 79°F (26°C)
- Avg low
- 68°F (20°C)
- Rain
- 3.7 in (94 mm)
- Humidity
- 68%
- Cloud cover
- 43%
- Daylight
- ~14 h 18 min
- Comfort score
- 89/100 · Great
What December feels like
Highs settle around 79°F (26°C), warm enough for short sleeves most of the day.
After dark, temperatures fall to about 68°F (20°C).
Some rain is likely, about 3.7 in (94 mm) in the month, so pack for a shower or two.
Plan around December
December is one of Buenos Aires's best months on the climate data.
- Longest days of the year, about 14 h 18 min of daylight.
- Comfort holds steady from November (87 → 89/100).
- Our Buenos Aires, Mendoza & Iguazú route recommends Mar – May, Sep – Nov, so December falls outside its suggested window.
What to pack for December
- Light, breathable clotheshighs average 79°F
- Sunscreen, sunglasses and a hathigh UV on clear days
- Packable rain jacket or umbrellaabout 3.7 in of rain
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Buenos Aires in December
December is good outdoor weather here, so these picks lean toward the open air.
MALBA
Museum of Latin American art with works by Frida Kahlo, Diego Rivera and Xul Solar.
Caminito
Painted tin-walled street in La Boca, near La Bombonera stadium.
Why now December scores 89/100 for comfort, good conditions for being outside.
Café Tortoni
Ornate cafe on Avenida de Mayo open since 1858, with evening tango shows.
El Ateneo Grand Splendid
Bookstore inside a 1919 theater, with a cafe on the former stage.
Florería Atlántico
Cocktail bar hidden behind a flower shop, with drinks built on immigrant traditions.
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Buenos Aires in December: quick answers
Is December a good time to visit Buenos Aires?
Yes. On the climate data it's one of the best months, scoring 89/100. Expect highs of 79°F (26°C) and 3.7 in (94 mm) of rain. Our Buenos Aires, Mendoza & Iguazú route recommends Mar – May, Sep – Nov, so December is outside its suggested window.
How hot is Buenos Aires in December?
Average highs are 79°F (26°C) and average lows 68°F (20°C), making it the 3rd-warmest month by daytime highs.
Does it rain a lot in Buenos Aires in December?
Some: about 3.7 in (94 mm) of rain falls across December on average, the 6th-driest month of the year. The annual total is about 43.5 in (1104 mm).
What should I pack for Buenos Aires in December?
Bring light, breathable clothes (highs average 79°F), sunscreen, sunglasses and a hat (high UV on clear days), packable rain jacket or umbrella (about 3.7 in of rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Buenos Aires
Planning Buenos Aires in December?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.