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Climate · Buenos Aires

Buenos Aires in December

Warm and mostly dry, as the days hold steady.

Typical weather, averaged over 30 years

December in Buenos Aires is warm: highs near 83°F, lows near 65°F. Rain falls on about two days a week, and daylight holds at about 14 hours 26 minutes.December in Buenos Aires is warm: highs near 28°C, lows near 18°C. Rain falls on about two days a week, and daylight holds at about 14 hours 26 minutes.

High
83°F28°Caverage
Low
65°F18°Caverage
Wet days
2a week · 26% of days
Daylight
14h 26mon average

Is December a good time to visit Buenos Aires?

A good month, just outside Buenos Aires's best months, which run in two parts: March to April, or October to November.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How December sits in the year

week by week

Temperature

Highs near 83°F in December, against 59°F to 85°F through the year.Highs near 28°C in December, against 15°C to 29°C through the year.

Chance of a wet day

26% of days in December, against 20% to 31% through the year.

Cloud cover

31% cover in December, against 30% to 51% through the year.

Daylight

14h 26m in December, against 9h 52m to 14h 26m through the year.

Week by week, lightly smoothed, with December shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. November77°25°low 61°low 16°2 wet days a weekRain on about two days a week.
  2. December83°28°low 65°low 18°2 wet days a weekRain on about two days a week.
  3. January85°29°low 69°low 21°2 wet days a weekRain on about two days a week.

Where Buenos Aires sits, in December

America/Argentina/Buenos Aires
this place
typical high in December 40°F4°C95°F35°C
Sunrise, mid-December
5:35 AMsets 8:02 PM
Above the sea
30 mlow-lying
Latitude
34.6°Ssouthern hemisphere
Nearest of ours
Anisacate643 km north-west

The land around Buenos Aires, shaded by its typical high in December, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Argentina in December

high · low · wet days
See December on the planning mapThe whole year in Buenos Aires

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Buenos Aires. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.