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

Buenos Aires in August: Weather, Average temperature and Climate

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

Weather in Buenos Aires in August 2025

Good Weather
Mild
☀️
Sunny
🌊
Cold water
Are you considering a trip to Buenos Aires in August? Well, the weather is usually on your side with an average maximum temperature of +61°F and about 12 sunny days. Just keep in mind that there may be some rain, with an average of 7 rainy days and 58 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+61°F
Avg. max. temperature
+30°F
Min.
+90°F
Max.
58 mm
Total precipitation
74%
Avg. humidity
3 m/s
Avg. wind
12 ☀️
Sunny Days
10 ⛅️
Cloudy
7 🌦
Rainy
Our opinion: Buenos Aires has good weather in August.

Average temperature in Buenos Aires in August

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

The temperature in August is +61°F on average, with a range between a maximum of +77°F during the day and a minimum of +39°F at night.

The average maximum temperature goes down 33% by the end of the month, compared with the beginning of the month, from +73°F to +61°F.

Is Buenos Aires warm or cold in August?

Buenos Aires is typically mild in August.

Maximum temperatures go up compared to the previous month from +57°F to +61°F. The minimum temperature also goes up from +46°F to +48°F.

Pack a light jacket as it will be warm in the day and cool in the evenings.

August is one of the coolest months in Buenos Aires, here is the comparison with other months:

Water temperature in Buenos Aires in August

Water in Buenos Aires in August is Cold. It varies from +52°F to +57°F, with an average of +54°F. This is almost similar to the air temperature, which averages +61°F.

The water temperature in August is one of the coldest of the entire 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 August?

We would not recommend swimming in Buenos Aires in August, the water is very cold (+54°F on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
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
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.

Climate in Buenos Aires in August

Buenos Aires weather looks like this, on average, in August and the surrounding months.
JulyAugustSeptember
Avg. temperature
+57°F+61°F+64°F
Min. temperature
+28°F+30°F+32°F
Max. temperature
+88°F+90°F+88°F
Rainfall
51 mm58 mm69 mm
Wind
3 m/s3 m/s4 m/s
Avg. water temperature
+53°F+54°F+57°F
Humidity
76%74%72%
Air pressure
1018 HPa1018 HPa1017 HPa
Sunny days
111211
Cloudy days
12109
Rainy days
778
Snowy days
000

August often has better weather than July. It’s getting warmer as August arrives. The average maximum temperature goes up from +57°F to +61°F during the day. Prepare for more rain. Average rainfall goes from 51 mm to 58 mm. It feels drier, as humidity decreases from 76% to 74%. The average wind speed doesn’t change much during August, staying around 3 m/s. The good news is there are likely to be more sunny days in August, from 11 to 12.

September brings much the same weather, it remains good.

Wind

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

The average wind speed is 5 m/s getting up to 11 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 August, going from 2 m/s to 3 m/s over the course of the month.

Rain

Amount of rainfall in mm during August in Buenos Aires based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in August stands at 23%, leading to total precipitation of around 54 mm. The maximum amount of rainfall per day is around 19 mm, which is considered light rain. On average, there are about 7 rainy days during August, so prepare to bring an umbrella.
Here’s how August 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 August in Buenos Aires?

This is the weather in Buenos Aires in August 2023:
1 August
☀️
+74°F
2 August
☀️
+78°F
3 August
☀️
+60°F
4 August
☀️
+62°F
5 August
☀️
+59°F
6 August
☁️
+65°F
7 August
☁️
+60°F
8 August
☀️
+56°F
9 August
☀️
+61°F
10 August
☁️
+63°F
11 August
☀️
+60°F
12 August
☀️
+53°F
13 August
☀️
+60°F
14 August
☀️
+72°F
15 August
☀️
+71°F
16 August
☀️
+73°F
17 August
🌧️
+62°F
18 August
🌧️
+61°F
19 August
☀️
+56°F
20 August
☀️
+52°F
21 August
☀️
+60°F
22 August
☀️
+62°F
23 August
☀️
+57°F
24 August
☀️
+58°F
25 August
☀️
+58°F
26 August
☀️
+57°F
27 August
☀️
+55°F
28 August
☀️
+57°F
29 August
☀️
+60°F
30 August
☀️
+67°F
31 August
☀️
+61°F
In August 2023 Buenos Aires had 26 sunny days, 3 cloudy days, and 2 rainy days. The average maximum temperature was +61°F, with an absolute maximum of +77°F and a minimum of +52°F. The average humidity was 70%, with a maximum of 97% and a minimum of 36%. The average wind speed was 5 m/s, with a maximum of 12 m/s and a minimum of 0 m/s.
Are you planning a trip in August?

Climate Change Over the Years

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

The climate in Buenos Aires in August 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 August:

Is August a good time to visit Buenos Aires?

August 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 August?

August has mild temperatures in Buenos Aires. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Can you swim in Buenos Aires in August?

Swimming in Buenos Aires in August is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.

Is Buenos Aires rainy in August?

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

Is it sunny in Buenos Aires in August?

The amount of sunny days in Buenos Aires during August 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.