ArgentinaAverage weather for Buenos Aires in December
It's hot in December in Buenos Aires with an average temperature of 31°C. Temperatures this month range from a low of 27°C to a high of 35°C. At night, you can expect temperatures between 14°C and 20°C.
Start of December
The month of December starts in Buenos Aires with hot temps, averaging around 30°C during the day and nights around 16°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers.
Mid December
By mid-December, daytime temps stay steady at around 30°C, with nights around 17°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
Since it cools down at night, it’s a good idea to wear layers.
End of December
By the end of December, the average daytime temperature in Buenos Aires is around 33°C, while nighttime temps are about 19°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
Because temperatures drop in the evening, wearing layers is recommended.
In December, there is an average of 47 mm of precipitation, spread over 6 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Buenos Aires in December |
New York | ||
|---|---|---|---|
 Average temperature |
31°C | 9°C | |
 Max. temperature |
35°C | 12°C | |
| Min. temperature |
27°C | -5°C | |
 Total precipitation |
47 mm | 133 mm | |
| Rainy days |
6 days | 17 days | |
November
UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is December a good time to visit Buenos Aires?
December is a good month to be in Buenos Aires for sunny weather. You’ll have high temperatures and not too much rain.
Temperature records
With 41°C in 2022, Buenos Aires reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 16°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 6°C to a highest value of 26°C.
Check out the climate of Buenos Aires for all months and discover the best travel time
Curious about the weather in other parts of Argentina? Check out the climate and weather for spots like Patagonia, Ushuaia, Mendoza, or explore other destinations in Argentina.
Daily Temperature in December in Buenos Aires
This chart shows the average daily high and low temperatures in December for Buenos Aires, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in December in Buenos Aires
The chart below shows the average daily precipitation in December for Buenos Aires, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for December, you can expect about 6 days of precipitation in Buenos Aires.
Daily UV index in December in Buenos Aires
This chart shows the average daily UV index in December in Buenos Aires, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in December in Buenos Aires over the years
This chart shows the average temperature in December in Buenos Aires, measured in degrees Celsius, over the past few years.
Total precipitation in December in Buenos Aires over the years
This chart shows the average precipitation in December in Buenos Aires, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in December for Buenos Aires
Click on any day in December to get detailed info about the usual weather on that day in Buenos Aires. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in December in Buenos Aires
Have you been to Buenos Aires in December?
Share your weather experience in December in Buenos Aires.
Average weather in Buenos Aires by month
Click on a month below to see detailed weather info for Buenos Aires. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Buenos Aires for all months at once
