Buenos Aires in December
Hot and festive
By Daan · Last reviewed October 2026
The short answer
December is one of the weakest months in Buenos Aires.
December has hot weather and festive season crowds; prices rise towards New Year.
December in detail
What December actually feels like
- Weather
- 18–29°C
- Hot and humid with thunderstorms.
- Crowds
- High
- Expect queues at the headline sights and full terraces in the evening.
- Prices
- $$$$
- Higher rates, especially for central and view rooms.
+Festive decorations and long evenings.
–Heat and higher prices around holidays.
My tip for December
Plan morning sightseeing and keep afternoons cool.
- Rooftops
- Festive season
How December compares
Against the other eleven months
11th of 12 overall in Buenos Aires, 7th for weather, 12th for space, 12th for value. The emptiest month is June; the best value is June.
See all twelve months for Buenos AiresPlan around
What’s on in Buenos Aires in December
- Summer heat
- Hot and humid; some businesses close in January.
December–February
Not set on December?
Months I'd choose over December
Also good in December
Weather
Weather in Buenos Aires in December
In December Buenos Aires averages a high of 29°C (84°F) and a low of 19°C (66°F), with about 123 mm of rain or snow over 9 wet days. The warmest month is January (around 30°C) and the coolest is June (around 16°C); the wettest month is January.
- Average high
- 29°C
- 84°F
- Average low
- 19°C
- 66°F
- Precipitation
- 123 mm
- Wet days
- 9
Climate data: Servicio Meteorológico Nacional. Temperatures are averages of daily highs and lows.
Quick answers
Buenos Aires in December: the questions people ask
- Is December a good time to visit Buenos Aires?
- December is one of the weakest months in Buenos Aires. It ranks 11 of 12 months in Buenos Aires overall (7 for weather, 12 for space, 12 for value). The main upside: Festive decorations and long evenings. The main downside: Heat and higher prices around holidays.
- What is the weather like in Buenos Aires in December?
- Average highs are around 29°C and lows around 19°C. Expect about 123 mm of rain or snow over roughly 9 wet days. Hot and humid with thunderstorms. For comparison, the warmest month is January (around 30°C) and the coolest is June (around 16°C).
- Is Buenos Aires crowded in December?
- Crowds are high. Expect queues at the headline sights and full terraces in the evening. The quietest month is June.
- How expensive is Buenos Aires in December?
- Prices are at level 4 of 5 ($$$$). Higher rates, especially for central and view rooms. The best-value month is June.
- When is the best time to visit Buenos Aires?
- In the CrowdFreeViews month scores, October is the best month overall (December ranks 11 of 12). The quietest month is June and the best value is June.
Still going to Buenos Aires in December?
Book early and plan around the busiest hours — heat and higher prices around holidays.
Find hotels in Buenos AiresAffiliate link