Buenos Aires Weather History
Argentina · South America · Weather data 1976–today
Buenos Aires sits 3853km from the equator, 10m above sea level. That combination gives it a climate with hot, humid summers, mild winters, and rain year round (Humid subtropical climate). Its record high is 38.1°C, set 2022-01-14, its record low -0.9°C, set 1984-06-27.
Data through September 19, 2026.
Frequently asked questions about the weather in Buenos Aires
What is the hottest temperature ever recorded in Buenos Aires?
The highest temperature in this record for Buenos Aires is 38.1°C, measured on 2022-01-14. That is a recorded daily value from Buenos Aires's own series covering 1976 to 2025, not an estimate or a regional average.
What is the coldest temperature ever recorded in Buenos Aires?
The lowest temperature in this record for Buenos Aires is -0.9°C, measured on 1984-06-27. Together with the heat record above, that spans the full range this city has actually experienced across 1976 to 2025.
How much rain does Buenos Aires get a year?
Buenos Aires averages 1013mm of precipitation a year, spread across roughly 93 days with at least 1mm. That average is taken over 33 complete calendar years, so one exceptionally wet or dry year does not set the figure.
What was the wettest day on record in Buenos Aires?
On 1990-02-03, 145.9mm fell on Buenos Aires, the highest single-day total in this series. For scale, that is roughly 14% of what the city receives in an average full year, in one day.
How many hours of sunshine does Buenos Aires get a year?
Buenos Aires averages 3501 sunshine hours a year, which works out to about 9.6 hours a day across the whole year. Sunshine hours measure the time direct sunlight actually reaches the ground, not simply how long it is light.
How warm are summers and how cold are winters in Buenos Aires?
Across the summer months Buenos Aires averages a daytime high near 26.7°C, while winter nights average 8.3°C. The seasons here are set from Buenos Aires's position relative to the equator rather than a fixed northern-hemisphere calendar.
What is the strongest wind recorded in Buenos Aires?
The strongest wind speed recorded in Buenos Aires is 64 km/h, on 2000-05-16. That is the daily maximum sustained wind rather than the peak gust, which typically runs higher still.
