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Buenos Aires Weather by Month
Average temperatures, rainfall and humidity for Buenos Aires, Argentina, month by month, built from OpenWeather’s historical records. Use it to see what a typical Buenos Aires month looks like before you travel — then check the live Buenos Aires forecast for the days ahead.
Warmest month
January
29°C average high
Coolest month
July
8°C average low
Wettest month
April
50 mm of rain
Driest month
June
23 mm of rain
Average temperature and rainfall in Buenos Aires by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 29°C | 20°C | 11°C / 41°C | 36 mm | 66% | 15 km/h |
| February | 29°C | 20°C | 8°C / 39°C | 30 mm | 69% | 14 km/h |
| March | 26°C | 18°C | 2°C / 38°C | 40 mm | 71% | 14 km/h |
| April | 22°C | 15°C | 5°C / 32°C | 50 mm | 75% | 15 km/h |
| May | 18°C | 11°C | 3°C / 27°C | 40 mm | 77% | 13 km/h |
| June | 16°C | 9°C | -2°C / 26°C | 23 mm | 77% | 13 km/h |
| July | 15°C | 8°C | -1°C / 26°C | 33 mm | 78% | 13 km/h |
| August | 17°C | 9°C | 0°C / 29°C | 27 mm | 73% | 14 km/h |
| September | 19°C | 11°C | 2°C / 29°C | 36 mm | 72% | 15 km/h |
| October | 22°C | 13°C | 3°C / 35°C | 44 mm | 70% | 15 km/h |
| November | 25°C | 16°C | 8°C / 35°C | 49 mm | 66% | 16 km/h |
| December | 29°C | 19°C | 8°C / 39°C | 30 mm | 63% | 15 km/h |
Best time to visit Buenos Aires
The most comfortable time to visit Buenos Aires is generally March to April and November, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rainfall is spread evenly across the months, totalling about 437 mm a year.
Travellers who prefer heat should aim for January, when highs average 29°C. April is the month to avoid if rain would spoil your plans — it averages 50 mm, roughly 2× the rainfall of the driest month (June).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Buenos Aires forecast for what is happening now.