Your trips
Organize your trips easily with tabs
New York
Buenos Aires
Any date
+ Search
background

Buenos Aires in December: Weather, Average temperature and Climate

Take a look at past year’s weather for Buenos Aires in December and see if it is worth visiting.
Check flight prices to Buenos Aires on Avionero:
December

Weather in Buenos Aires in December 2024

Good Weather
Warm
☀️
Sunny
🌊
Comfortable water
Are you considering a trip to Buenos Aires in December? Well, the weather is usually on your side with an average maximum temperature of +81°F and about 12 sunny days. Just keep in mind that there may be some rain, with an average of 8 rainy days and 86 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+81°F
Avg. max. temperature
+48°F
Min.
+102°F
Max.
86 mm
Total precipitation
66%
Avg. humidity
3 m/s
Avg. wind
12 ☀️
Sunny Days
5 ⛅️
Cloudy
8 🌦
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

The temperature in December is +79°F on average, with a range between a maximum of +88°F during the day and a minimum of +55°F at night.

The average maximum temperature goes up 6% by the end of the month, compared with the beginning of the month, from +77°F to +79°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:

Water temperature in Buenos Aires in December

Water in Buenos Aires in December is Comfortable. It varies from +68°F to +74°F, with an average of +71°F. The air temperature averaging +81°F is higher than the water temperature.

In December, water temperatures are average relative to the rest of the year:

The warmest water temperatures in Buenos Aires are reached in January, when the average sea temperature rises to +75°F. The coldest water temperatures are in July, with an average of +53°F.

Can you swim in Buenos Aires in December?

The water in Buenos Aires in December is pretty comfortable (+71°F in average). Ideal for swimming, especially in outdoor pools and open water. Suitable for recreational and casual swimmers.
🦭
Cold
Below +61°F
🏄‍♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
Don’t forget a large beach towel or two for drying off.

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 mm86 mm87 mm
Wind
4 m/s3 m/s3 m/s
Avg. water temperature
+67°F+71°F+75°F
Humidity
68%66%66%
Air pressure
1012 HPa1010 HPa1010 HPa
Sunny days
111212
Cloudy days
656
Rainy days
988
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 86 mm. It feels drier, as humidity decreases from 68% to 66%. Winds are calmer in comparison to November, going down from 4 m/s to 3 m/s on average. The good news is there are likely to be more sunny days in December, from 11 to 12.

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 6 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 4 m/s to 4 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
A chance of rain on a typical day in December stands at 45%, leading to total precipitation of around 136 mm. The maximum amount of rainfall per day is around 34 mm, which is moderate rain. December is a pretty wet month with over 14 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
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 32% chance of precipitation and 102 mm of rainfall per day. June, on the other hand, is the driest month with a mere 23% chance of precipitation and 48 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
🌧️
+77°F
2 December
☀️
+82°F
3 December
☀️
+76°F
4 December
☀️
+69°F
5 December
☀️
+72°F
6 December
🌧️
+71°F
7 December
🌧️
+74°F
8 December
☀️
+73°F
9 December
☀️
+74°F
10 December
☀️
+78°F
11 December
☀️
+82°F
12 December
☀️
+87°F
13 December
☀️
+83°F
14 December
☁️
+80°F
15 December
☁️
+83°F
16 December
☀️
+85°F
17 December
🌧️
+84°F
18 December
🌧️
+73°F
19 December
☁️
+67°F
20 December
☁️
+74°F
21 December
☁️
+79°F
22 December
☀️
+77°F
23 December
☀️
+84°F
24 December
☀️
+78°F
25 December
☀️
+76°F
26 December
☀️
+77°F
27 December
☀️
+83°F
28 December
☀️
+86°F
29 December
☀️
+82°F
30 December
☀️
+76°F
31 December
☀️
+78°F
In December 2023 Buenos Aires had 21 sunny days, 5 cloudy days, and 5 rainy days. The average maximum temperature was +79°F, with an absolute maximum of +88°F and a minimum of +68°F. The average humidity was 73%, with a maximum of 98% and a minimum of 37%. The average wind speed was 4 m/s, with a maximum of 11 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 1983 (+67°F) and the highest in 2017 (+72°F). The driest year was 2008 with only 468 mm of rainfall, and the wettest year was 2014 with 1388 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.

Can you swim in Buenos Aires in December?

Yes, the water temperature in Buenos Aires in December is considered moderate and enjoyable for most people, averaging around +71°F.

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.

Other cities in Argentina

Check out the weather for other cities in Argentina.

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, 2023.

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.