Is Buenos Aires Getting Hotter?

Short answer: yes. Buenos Aires's average temperature has climbed roughly 1 degrees since the 1960s. That puts it in the lower half among the world's major cities for total warming. Here is what 65 years of data actually shows.

The warming hasn't been steady. The first half of the record saw a change of roughly 0.4 degrees, while the second half has already added 0.7 degrees. The acceleration is unmistakable.

Buenos Aires has warmed 0.6 degrees less than the average city in our global dataset, though still well above the pre-industrial baseline.

Among the world's major cities, Buenos Aires's warming rate places it below the average. Here is how Buenos Aires stacks up against other global cities.

Temperature data on this page comes from the Global Historical Climatology Network version 4 (GHCN v4), maintained by NOAA's National Centers for Environmental Information. GHCN v4 contains monthly mean temperature data for over 25,000 stations across the globe, with records dating back to the 18th century for some stations. The data has been quality-controlled and homogenised using the Pairwise Homogeneity Algorithm to remove artificial discontinuities from station moves, equipment changes, and observation practice changes.

Buenos Aires's primary station is Aeroparque Jorge Newbery, with records spanning 1961-2025. The "change" figures compare each decade's average to the 1960s baseline. Note that some of the warming in large cities is attributable to the urban heat island effect rather than regional climate change alone. The figures shown here include both components, as they represent what the city actually experiences.

NASA GISTEMP analysis, which processes GHCN v4 data, is a product of NASA Goddard Institute for Space Studies. It is produced as a US Government work and is in the public domain.