Buenos Aires Weather in March
In March, Buenos Aires averages a high of 27°C (80°F) and a low of 18°C (65°F), from 54 years of daily records (1971–2025).
27°C
Average high
80°F
18°C
Average low
65°F
38°C
Record high
100°F · March 22, 1980
6°C
Record low
43°F · March 31, 1977
What March Is Like in Buenos Aires
- The March heat record, 38°C (100°F) on March 22, 1980, has stood for 45 years.
- The coldest March reading, 6°C (43°F) on March 31, 1977, has not been matched in 48 years.
- A typical March brings 4.7 days above 30°C (86°F).
- March 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 31% of March days.
Warmest: 2023 (30.4°C)Latest: 2025 (27.7°C)10-year averageLong-run average (26.6°C)
Look Up a Day in March
See the weather in Buenos Aires on any March 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