NOAA GHCND · LIVE

Buenos Aires Weather in May

In May, Buenos Aires averages a high of 19°C (67°F) and a low of 11°C (53°F), from 53 years of daily records (1971–2025).

19°C
Average high
67°F
11°C
Average low
53°F
30°C
Record high
87°F · May 15, 1972
0°C
Record low
32°F · May 4, 1971

What May Is Like in Buenos Aires

  • The May heat record, 30°C (87°F) on May 15, 1972, has stood for 53 years.
  • 5 of the 10 warmest Mays on record in Buenos Aires have come since 2011.
  • The coldest May reading, 0°C (32°F) on May 4, 1971, has not been matched in 54 years.
  • May in Buenos Aires has become 0.6°C (1.0°F) warmer on average: the 2011–2025 average against 1970–1989.

At least 1 mm of rain falls on 27% of May days.

Average daytime high in Buenos Aires, every May since 1971
14°C19°C23°C19801990200020102020May 1971: 18.3°CMay 1972: 20.4°CMay 1973: 18.2°CMay 1974: 19.2°CMay 1975: 19.6°CMay 1976: 19.2°CMay 1977: 17.8°CMay 1978: 19.1°CMay 1979: 19.9°CMay 1980: 20.3°CMay 1981: 21.6°CMay 1982: 20.8°CMay 1983: 18.6°CMay 1984: 18.4°CMay 1985: 20.4°CMay 1986: 18.6°CMay 1987: 17.2°CMay 1988: 16.9°CMay 1989: 20.1°CMay 1990: 18.9°CMay 1991: 20.9°CMay 1992: 19.1°CMay 1993: 18.6°CMay 1994: 20.6°CMay 1995: 19.7°CMay 1996: 20.4°CMay 1997: 21.3°CMay 1998: 19.6°CMay 1999: 19.3°CMay 2000: 18.0°CMay 2001: 17.7°CMay 2002: 21.2°CMay 2003: 19.6°CMay 2004: 17.6°CMay 2005: 18.7°CMay 2007: 17.1°CMay 2008: 19.2°CMay 2010: 20.3°CMay 2011: 19.6°CMay 2012: 20.2°CMay 2013: 19.8°CMay 2014: 18.7°CMay 2015: 20.9°CMay 2016: 15.4°CMay 2017: 19.8°CMay 2018: 20.1°CMay 2019: 19.9°CMay 2020: 20.2°CMay 2021: 18.5°CMay 2022: 18.1°CMay 2023: 21.2°CMay 2024: 16.4°CMay 2025: 21.1°C
Warmest: 1981 (21.6°C)Latest: 2025 (21.1°C)10-year averageLong-run average (19.3°C)

Look Up a Day in May

See the weather in Buenos Aires on any May date, year by year.

Source: NOAA GHCN-Daily, Buenos Aires Observ (1971–2025); Aeroparque Jorge Newbery (1973–2025). Averages cover 1971–2025. How we compute this

← PreviousBuenos Aires in AprilNext →Buenos Aires in June

Buenos Aires Weather by Month

📬 Free weekly newsletter

This week in weather history.

Five notable weather anniversaries from the week ahead — deadliest tornadoes, record temps, historic storms — every Sunday. No spam, unsubscribe anytime.

4,200+ readers · Sunday delivery