Buenos Aires
December
Weather in Buenos Aires for December 2025
Your guide to Buenos Aires weather in December - trends and predictions
So far, December 2025 in Buenos Aires is slightly warmer than the historical average by 1.9 °C.
The forecast for the upcoming days in Buenos Aires predicts a temperature of 27.9 °C, which is slightly above the historical average.
In general, the average temperature in Buenos Aires at the beginning of December is 24 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 26.7 °C by the end of December.
The climate of Buenos Aires in December is notably wet, with an average of 13 rainy days, and a total of 75.2 mm of precipitation.
Temperatures
Rain 🌧️
18
Dry days
13
Rainy days
0
Snow days
25°/18°
Temperatures
25 km/h
Avg max wind
64 %
Avg humidity
Buenos Aires Weather December
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Temperatures trend during December in Buenos Aires
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December weather in Buenos Aires day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Light rain shower | 21° /18° | 16.6 mm | 7 | |
| 2 Dec. |  Mist | 24° /15° | 0 mm | 8 | |
| 3 Dec. | Patchy rain possible | 23° /14° | 0 mm | 8 | |
| 4 Dec. |  Sunny | 25° /17° | 0 mm | 9 | |
| 5 Dec. | Sunny | 27° /19° | 2.5 mm | 9 | |
| 6 Dec. | Light rain shower | 25° /18° | 4.1 mm | 8 | |
| 7 Dec. | Light rain shower | 23° /15° | 0.8 mm | 8 | |
| 8 Dec. |  Partly cloudy | 22° /17° | 0 mm | 8 | |
| 9 Dec. | Partly cloudy | 23° /17° | 0.2 mm | 7 | |
| 10 Dec. | Partly cloudy | 26° /18° | 0.5 mm | 9 | |
| 11 Dec. |  Overcast | 28° /19° | 0.3 mm | 8 | |
| 12 Dec. | Sunny | 30° /20° | 0 mm | 9 | |
| 13 Dec. | Patchy rain possible | 28° /21° | 3.6 mm | 8 | |
| 14 Dec. | Patchy rain possible | 25° /18° | 7.2 mm | 8 | |
| 15 Dec. | Patchy rain possible | 27° /16° | 0.6 mm | 2.4 | |
| 16 Dec. | Sunny | 25° /16° | 0 mm | 3.2 | |
| 17 Dec. | Sunny | 28° /18° | 0 mm | 3.4 | |
| 18 Dec. | Sunny | 31° /22° | 0 mm | 3.4 | |
| 19 Dec. | Sunny | 32° /22° | 0 mm | 0.7 | |
| 20 Dec. | Patchy rain possible | 25° /21° | 1.8 mm | 8 | |
| 21 Dec. | Patchy rain possible | 29° /22° | 0.5 mm | 8 | |
| 22 Dec. | Sunny | 29° /18° | 0 mm | 9 | |
| 23 Dec. | Sunny | 31° /23° | 0 mm | 10 | |
| 24 Dec. | Sunny | 31° /24° | 0 mm | 10 | |
| 25 Dec. |  Moderate rain | 28° /22° | 17.7 mm | 9 | |
| 26 Dec. | Sunny | 24° /17° | 0 mm | 9 | |
| 27 Dec. | Sunny | 25° /18° | 0 mm | 9 | |
| 28 Dec. | Sunny | 26° /19° | 0 mm | 9 | |
| 29 Dec. | Sunny | 27° /18° | 0 mm | 8 | |
| 30 Dec. | Sunny | 29° /18° | 0 mm | 8 | |
| 31 Dec. | Partly cloudy | 28° /20° | 0 mm | 8 | |
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Important Notice
Our weather forecast for Buenos Aires in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Buenos Aires forecast closer to your planned date for the most up-to-date weather information.
Change Month
Buenos Aires in December - FAQ
What are the expected maximum and minimum temperatures in Buenos Aires during December?
During December, expect a variety of temperatures with highs around 25° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Buenos Aires during December?
Moderate rainfall is anticipated in Buenos Aires during December, with a total of 75.2 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Buenos Aires during December?
The average wind speed in Buenos Aires during December is 25 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Buenos Aires
Explore the daily rainfall trends and prepare for Buenos Airess December weather 💧
Typically, Buenos Aires has 13 rainy days in December with a total of 75.2 mm of rainfall.
UV exposure in Buenos Aires during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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