Historical Weather in Buenos Aires, Argentina
See 55+ years of weather history for any date in Buenos Aires going back to 1970.
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Monthly Climate Averages
Historical temperature and precipitation averages for Buenos Aires, Argentina, based on 55+ years of weather data.
Temperatures shown in Celsius with Fahrenheit in parentheses. Rainfall in millimetres, snowfall in centimetres.
Buenos Aires Weather by Month
5 of the 10 warmest Januarys on record in Buenos Aires have come since 2011.
Buenos Aires set its coldest February reading on record recently: 8°C (47°F) on February 17, 2023.
The March heat record, 38°C (100°F) on March 22, 1980, has stood for 45 years.
The coldest April reading, 3°C (37°F) on April 19, 1971, has not been matched in 54 years.
The May heat record, 30°C (87°F) on May 15, 1972, has stood for 53 years.
The coldest June reading, -2°C (28°F) on June 15, 1981, has not been matched in 44 years.
The July heat record, 30°C (86°F) on July 29, 1979, has stood for 46 years.
The coldest August reading, -2°C (28°F) on August 1, 1991, has not been matched in 34 years.
September 2024 was the 2nd warmest September in 50 years of records, 1.8°C (3.2°F) above the long-run average.
October 2024 was the 2nd warmest October in 50 years of records, 1.9°C (3.5°F) above the long-run average.
The coldest November reading, 3°C (37°F) on November 13, 1978, has not been matched in 47 years.
The coldest December reading, 6°C (42°F) on December 5, 1971, has not been matched in 54 years.
Source: NOAA GHCN-Daily, Buenos Aires Observ (1971–2025); Aeroparque Jorge Newbery (1973–2025). Records through 2025.