Buenos Aires Weather in September

What's the weather like in Buenos Aires (Cauca) in September 2024?

The climate in Buenos Aires during September can be summarized as hot, humid and wet.

September is in the fall / autumn in Buenos Aires and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a muggy 29°C (85°F), whilst at night 17°C (63°F) is normal.

Buenos Aires weather averages (imperial / metric)
Daytime temperature 29.4°C 84.9°F
Nightly temperature 17.4°C 63.3°F
Average temperature 23.4°C 74.1°F
Daily sunshine 6 hrs
Avg rainfall 178 mm 7 ins
Rainy days 12 days
Sea temperature 27.1°C 80.8°F
Humidity 75%
Windspeed 9.7kph 6 mph

On average September is the 6th driest month of the year in Buenos Aires with around 178mm 7 inches of rain making it a wet time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 6 hours of sunshine per day.

September temperatures in Buenos Aires

Buenos Aires average temperature in September

September rainfall

Buenos Aires average rain in September

September hourly sunshine

Buenos Aires average rain in September

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 September 2024.

Other monthly averages

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Buenos Aires weather stats

Buenos Aires weather statistics
Hottest month: March 29.2°C 84.6°F
Driest month: July 98mm 3.9ins
Sunniest month: September 6hrs
Coldest month: October 28.1°C 82.6°F
Wettest month: October 308mm 12.1ins
Map showing location of Buenos Aires (3.01503, -76.64275) Buenos Aires map pin © Google

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