Buenos Aires weather in 2025
Buenos Aires weather in 2025, with 365 daily observations from Open-Meteo archive data.
Interactive graph
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Use the graph view to inspect 2025 alongside other available years for Buenos Aires.
Year summary
In 2025, Buenos Aires averaged 22.1 C for daily highs and 14.7 C for daily lows.
A 1991-2020 normal is not available for this location yet, so this page compares 2025 with the 2023-2025 archive baseline. The 2025 average daily high was +0.3 C from that baseline, and total precipitation was +151.2 mm from the baseline total.
The warmest month was December, with an average high of 30.4 C, while June had the lowest average low at 6.7 C.
The wettest month was March, totaling 241.7 mm. The hottest day reached 38.7 C on December 31, 2025.
Monthly averages and precipitation
| Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|
| January | 21.7 | 29.4 | 48.8 | 31 |
| February | 21.9 | 29.4 | 117.5 | 28 |
| March | 19.1 | 25.9 | 241.7 | 31 |
| April | 13.6 | 20.6 | 110.4 | 30 |
| May | 12.9 | 18.7 | 199.1 | 31 |
| June | 6.7 | 13.8 | 31.3 | 30 |
| July | 8.2 | 14.3 | 34.1 | 31 |
| August | 9.7 | 16.5 | 124.0 | 31 |
| September | 11.5 | 19.0 | 94.7 | 30 |
| October | 14.8 | 23.1 | 94.8 | 31 |
| November | 15.9 | 24.7 | 89.5 | 30 |
| December | 20.8 | 30.4 | 47.5 | 31 |
Daily records in 2025
| Record | Date | Value |
|---|---|---|
| Hottest day | December 31, 2025 | 38.7 C |
| Coldest night | July 1, 2025 | -0.3 C |
| Wettest day | March 3, 2025 | 89.5 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.