Buenos Aires, Argentina Weather
Buenos Aires hourly forecast: next 24 hours
Today's high of 63°F (17°C) is right in line with the typical August high of 61°F (16°C).
Current conditions in detail
Buenos Aires weather tomorrow (Monday, August 17)
Tomorrow in Buenos Aires looks partly cloudy, with a high of 56° and an overnight low of 50°. There is a 85% chance of rain - plan accordingly. Winds top out near 21 mph, and the UV index reaches 4 (moderate).
Buenos Aires 14-day forecast
About the weather in Buenos Aires
Buenos Aires has a humid subtropical climate, marked by hot, humid summers and generally mild winters. Average daytime highs range from about 57°F (14°C) in July to around 83°F (28°C) in January, and the city records roughly 91 days of measurable precipitation a year.
Buenos Aires weather: quick facts
- Hottest month: January - highs near 83°F (28°C)
- Coldest month: July - highs near 57°F (14°C)
- Record high: 102°F (39°C) · Record low: 29°F (-1°C) (2015–2024)
- Wettest month: March (8 rainy days) · Sunniest: December (12.4 h sun/day)
- Climate type: humid subtropical - hot, humid summers and generally mild winters
Temperatures through the year
The warmest stretch of the year centers on January. Highs average 83°F (28°C) and overnight lows stay near 69°F (21°C). The coolest month is July, with typical highs of 57°F (14°C) and lows around 46°F (8°C). Based on 2015–2024 weather data, temperatures have reached as high as 102°F (39°C) and dropped as low as 29°F (-1°C).
Rain, sun and snow
March is usually the wettest month. It brings about 4.7 inches (118 mm) of rain over 8 days, while June is the driest. December brings the most sunshine, averaging 12.4 hours of sun a day.
Season by season
Spring (September through November)
Spring in Buenos Aires is mild and warm, with daytime highs averaging 70°F (21°C) and nights around 56°F (13°C); expect showers on roughly 23 days across the season.
Summer (December through February)
Summer in Buenos Aires runs hot, with daytime highs averaging 82°F (28°C) and nights around 68°F (20°C); expect showers on roughly 23 days across the season.
Fall (March through May)
Fall in Buenos Aires brings comfortable warmth, with daytime highs averaging 70°F (21°C) and nights around 59°F (15°C); expect showers on roughly 23 days across the season.
Winter (June through August)
Winter in Buenos Aires is crisp but comfortable, with daytime highs averaging 59°F (15°C) and nights around 47°F (8°C); expect showers on roughly 22 days across the season.
Average temperatures in Buenos Aires by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 83° | 69° | 9 | 3.2 in | 12.0 h/day | 67% |
| February | 82° | 68° | 7 | 3.0 in | 11.4 h/day | 69% |
| March | 77° | 65° | 8 | 4.7 in | 10.5 h/day | 73% |
| April | 71° | 60° | 8 | 4.2 in | 8.5 h/day | 76% |
| May | 63° | 52° | 6 | 2.9 in | 7.6 h/day | 79% |
| June | 59° | 47° | 7 | 1.9 in | 7.5 h/day | 80% |
| July | 57° | 46° | 8 | 2.9 in | 7.5 h/day | 80% |
| August | 61° | 48° | 6 | 2.4 in | 8.1 h/day | 77% |
| September | 64° | 51° | 6 | 2.7 in | 9.0 h/day | 74% |
| October | 69° | 55° | 9 | 3.3 in | 10.1 h/day | 71% |
| November | 76° | 62° | 8 | 3.4 in | 11.5 h/day | 67% |
| December | 81° | 66° | 8 | 3.3 in | 12.4 h/day | 64% |