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Buenos Aires in December: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Buenos Aires in December will be like? Take a look at our weather guide for Buenos Aires, based on historical data.
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December

Weather in Buenos Aires in December 2024

Good Weather
Warm
☀️
Sunny
Weather for Buenos Aires in December is typically good with an average maximum temperature of +81°F during the day, and approximately 15 sunny days monthly. Typically, there are about 6 rainy days with the total average precipitation that falls in December around 85 mm. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.
Good to know:
  • December is usually the driest month of the year in Buenos Aires

Average weather

☀️
+81°F
Avg. max. temperature
+48°F
Min.
+102°F
Max.
85 mm
Total precipitation
65%
Avg. humidity
3 m/s
Avg. wind
15 ☀️
Sunny Days
10 ⛅️
Cloudy
6 🌦
Rainy
Our opinion: Buenos Aires has good weather in December.

Average temperature in Buenos Aires in December

Here are the expected maximum, average and minimum temperatures in Buenos Aires for December based on the historical data.
Last Year
Historical Data

Going from a maximum of +100°F during the day to a minimum of +55°F during the night, the temperature in December averages around +86°F.

The average maximum temperature goes up 28% by the end of the month, compared with the beginning of the month, from +73°F to +86°F.

Is Buenos Aires warm or cold in December?

Buenos Aires is typically warm in December.

Maximum temperatures go up compared to the previous month from +75°F to +81°F. The minimum temperature also goes up from +61°F to +66°F.

It’s generally warm, but pack a long-sleeve shirt for evenings.

December is one of the warmest months in Buenos Aires, here is the comparison with other months:

Climate in Buenos Aires in December

Buenos Aires weather looks like this, on average, in December and the surrounding months.
NovemberDecemberJanuary
Avg. temperature
+75°F+81°F+82°F
Min. temperature
+43°F+48°F+52°F
Max. temperature
+95°F+102°F+106°F
Rainfall
97 mm85 mm88 mm
Wind
3 m/s3 m/s3 m/s
Humidity
68%65%66%
Air pressure
1012 HPa1010 HPa1010 HPa
Sunny days
131515
Cloudy days
111010
Rainy days
666
Snowy days
000

December weather is still as good as in November. It’s getting warmer as December arrives. The average maximum temperature goes up from +75°F to +81°F during the day. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 97 mm to 85 mm. It feels drier, as humidity decreases from 68% to 65%. The average wind speed doesn’t change much during December, staying around 3 m/s. The good news is there are likely to be more sunny days in December, from 13 to 15.

January brings much the same weather, it remains good.

Wind

Wind speed in Buenos Aires in December based on historical data.
Last Year
Historical Data

The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Buenos Aires is gradually increasing during December, going from 3 m/s to 5 m/s over the course of the month.

Rain

Amount of rainfall in mm during December in Buenos Aires based on historical data.
Last Year
Historical Data
Total precipitation in December is about 102 mm, with a 29% chance of rain on a typical day. The maximum amount of rainfall per day is around 27 mm, which is moderate rain. On average, there are about 9 rainy days during December, so prepare to bring an umbrella.
Here’s how December is compared with other months in the amount of precipitation, total mm:
Buenos Aires wettest month is October, where a typical day has a 23% chance of precipitation and 104 mm of rainfall per day. June, on the other hand, is the driest month with a mere 13% chance of precipitation and 49 mm of rainfall per day.

How was the weather last December in Buenos Aires?

This is the weather in Buenos Aires in December 2023:
1 December
☁️
+74°F
2 December
☀️
+79°F
3 December
☀️
+78°F
4 December
☀️
+88°F
5 December
☀️
+94°F
6 December
☀️
+95°F
7 December
☀️
+93°F
8 December
☀️
+96°F
9 December
☀️
+100°F
10 December
☀️
+84°F
11 December
☀️
+99°F
12 December
☀️
+81°F
13 December
☀️
+82°F
14 December
☀️
+91°F
15 December
☀️
+83°F
16 December
☀️
+74°F
17 December
☁️
+76°F
18 December
☁️
+80°F
19 December
☀️
+84°F
20 December
☀️
+84°F
21 December
☀️
+82°F
22 December
☀️
+87°F
23 December
🌧️
+82°F
24 December
🌧️
+75°F
25 December
☀️
+75°F
26 December
☀️
+83°F
27 December
☀️
+87°F
28 December
☀️
+86°F
29 December
☀️
+86°F
30 December
☀️
+97°F
31 December
☀️
+87°F
In December 2023 Buenos Aires had 26 sunny days, 3 cloudy days, and 2 rainy days. The average maximum temperature was +86°F, with an absolute maximum of +100°F and a minimum of +73°F. The average humidity was 58%, with a maximum of 95% and a minimum of 23%. The average wind speed was 4 m/s, with a maximum of 12 m/s and a minimum of 0 m/s.
Are you planning a trip in December?

Climate Change Over the Years

This is how Buenos Aires climate has changed over the last 43 years.

The climate in Buenos Aires in December has not changed that much over the last 43 years.

The average temperature was the lowest in 1984 (+77°F) and the highest in 2013 (+90°F). The driest year was 2021 with only 17 mm of rainfall, and the wettest year was 2019 with 264 mm.

FAQ

Frequently asked questions about the weather in Buenos Aires in December:

Is December a good time to visit Buenos Aires?

December is a really good time to go to Buenos Aires. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Buenos Aires.

Can you sunbathe in Buenos Aires in December?

December is warm in Buenos Aires. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is Buenos Aires rainy in December?

Buenos Aires is often rainy in December. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Buenos Aires in December?

The amount of sunny days in Buenos Aires during December varies; prepare for a mix of clouds and sun.

Monthly weather in Buenos Aires

Source of the data

For this page, we’ve looked at the typical weather in Buenos Aires, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.