Buenos Aires Weather in October
What's the weather like in Buenos Aires (Puntarenas) in October 2025?
The climate in Buenos Aires during October can be summarized as warm, humid and very wet.
October is in the fall / autumn in Buenos Aires and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a muggy 25°C (76°F), whilst at night 18°C (63°F) is normal.
| Daytime temperature | 24.6°C 76.2°F |
|---|---|
| Nightly temperature | 17.5°C 63.4°F |
| Average temperature | 21°C 69.8°F |
| Daily sunshine | 6.1 hrs |
| Avg rainfall | 544 mm 21.4 ins |
| Rainy days | 23 days |
| Sea temperature | 28.6°C 83.4°F |
| Humidity | 85% |
| Windspeed | 9.4kph 6 mph |
On average October is the wettest month of the year in Buenos Aires with around 544mm 21.4 inches of rain making it a very wet time to visit. This rainfall is typically spread over 23 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.1 hours of sunshine per day.
October temperatures in Buenos Aires
October rainfall
October hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Buenos Aires in October 2025.
Other monthly averages
Best places to visit in October
Buenos Aires weather stats
| Hottest month: | May | 25.4°C 77.7°F |
|---|---|---|
| Driest month: | January | 40mm 1.6ins |
| Sunniest month: | March | 7.6hrs |
| Coldest month: | January | 24.1°C 75.4°F |
| Wettest month: | October | 544mm 21.4ins |
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