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.
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