Buenos Aires December — aerial view of the city's dense urban fabric in summer, with the broad Río de la Plata visible in the distance

Buenos Aires · Argentina

December

Summer begins and the city heats up — festive energy before the January exodus, but temperatures are already challenging.

Worth considering

#12 of 12 months

There are better months for Buenos Aires — see the full ranking below.

See when to go instead →

Climate

High

29°C

Low

20°C

Rain

112mm

Sun

9hrs/day

30-year climate normals · Open Meteo ERA5

How December scores in Buenos Aires

Weather
Average
Value
Average
Crowds
Average
Events
Good
Atmosphere
Good

What you gain in December

  • Christmas and New Year's celebrations in Buenos Aires are genuinely festive — the city's European character comes through in the decorations, parrilla dinners on Christmas Eve, and the NYE fireworks over the Río de la Plata from Puerto Madero
  • Long summer days with 9.0 sunshine hours; the city's beach culture reaches the artificial beaches of Costanera Norte and the boat day-trips to Tigre delta and the Paraná river islands
  • The city is at peak liveliness before the January evacuation — restaurants and bars are full in the first half of the month with porteños celebrating the end of the working year

What you sacrifice

  • The heat (29°C average with building humidity) makes daytime sightseeing progressively more taxing through the month; Buenos Aires in the second half of December is firmly summer and acts accordingly
  • Hotels prices are higher than winter or autumn in December — demand from local events and the year-end travel season pushes rates up
  • The restaurant and cultural closures that define January begin in the last week of December, as Buenos Aires begins its annual migration to the coast

How December compares to April (best month)

FactorDecemberApril
Weather
4
9
Value
4
7
Crowds
4
7

December in other destinations

Climate data: 30-year normals (1991–2020) from Open Meteo ERA5 reanalysis. Scores compare months within Buenos Aires, not across destinations. Methodology →