Buenos Aires Weather in December: Climate, Temperature & Travel Tips
Avg 23.1°C · 107mm rain — December is summer in Buenos Aires.
- Avg high
- 27.6 °C
- Avg low
- 18.6 °C
- Avg
- 23.1 °C
- Precipitation
- 107 mm
Source: Open-Meteo Archive 2014–2023 · 10-year climate normals
Climate Overview
December in Buenos Aires, Argentina brings summer conditions: average temperature 23.1°C, average high 27.6°C, average low 18.6°C. Monthly rainfall averages 107mm, making it a moderate-rainfall time of year.
Conditions are pleasant for most travel activities.
What to Pack
- Short sleeves and light pants; sunglasses
- Light shoes or sandals
- A light rain jacket as backup
Best Things to Do
- Walking tours and city exploration
- Parks and outdoor cafes
- Seasonal food and night markets (where applicable)
Pros and Cons of Visiting in December
Pros:
- Pleasant temperatures for walking and outdoor sightseeing
Cons:
- Peak season — expect higher prices and more crowds
Climate source: Open-Meteo Archive (2014–2023).
Colour = avg temperature · blue = cool · orange = warm
- 1 January 24.6°C
- 2 February 23.3°C
- 3 December 23.1°C
- 1 July 11.4°C
- 2 June 12.4°C
- 3 August 13.2°C
FAQ
01 What is the average temperature in Buenos Aires in December? +
The average is 23.1°C, with a high of 28°C and a low of 19°C.
02 What is Buenos Aires like to visit in December? +
It is summer in Buenos Aires, which is ideal for outdoor exploration.
03 Does it rain often in Buenos Aires during December? +
Average rainfall is 107mm, which is moderate.
04 What should I pack for Buenos Aires in December? +
Short sleeves and light pants; sunglasses; Light shoes or sandals.
05 Is December a peak travel season for Buenos Aires? +
Generally yes — book accommodations and flights well in advance.
06 Where does this climate data come from? +
Monthly averages computed from Open-Meteo Archive 2014–2023 daily observations.
- Sources
- Open-Meteo Archive 2014-2023
- Updated
- 2026-04-17