ColombiaThe weather in September in Buenos Aires
It's hot in September in Buenos Aires with an average temperature of 34°C. Temperatures this month range from a low of 33°C to a high of 35°C. At night, you can expect temperatures between 24°C and 25°C.
Looking for sun? September isn’t a good month to be in Buenos Aires. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Buenos Aires, Colombia. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 39°C in 2015, Buenos Aires reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 27°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 19°C to a highest value of 28°C.
Rainfall amount
In September, there is an average of 136 mm of precipitation, spread over 18 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
Daily weather in September for Buenos Aires
Click on any day in September to get detailed info about the usual weather on that day in Buenos Aires. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Buenos Aires | New York | |
|---|---|---|
| Average temperature | 34°C | 27°C |
| Max. temperature | 35°C | 31°C |
| Min. temperature | 24°C | -5°C |
| Total precipitation | 136 mm | 57 mm |
| Rainy days | 18 days | 9 days |
Start of September
The month of September starts in Buenos Aires with hot temps, averaging around 34°C during the day and nights around 24°C.
Mid September
By mid-September, daytime temps stay steady at around 34°C, with nights around 25°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of September
By the end of September, the average daytime temperature in Buenos Aires is around 34°C, while nighttime temps are about 24°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
Find affordable trips to Buenos Aires
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
The hurricane season in Buenos Aires runs from June to November.
Check out the climate of Buenos Aires for all months and discover the best travel time
Curious about the weather in other parts of Colombia? Check out the climate and weather for spots like Cartagena, Bogotá, Medellín, or explore other destinations in Colombia.
Temperature charts
These charts show the average temperatures in September in Buenos Aires, Colombia. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Buenos Aires
Temperature in September in Buenos Aires over the years
Precipitation charts
These charts show the average amount of precipitation in September in Buenos Aires, Colombia. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Buenos Aires
Total precipitation in September in Buenos Aires over the years
Daily UV index in September in Buenos Aires
This chart shows the average daily UV index in September in Buenos Aires, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Buenos Aires
Have you been to Buenos Aires in September?
Share your weather experience in September in Buenos Aires.
Average weather in Buenos Aires by month
Click on a month below to see detailed weather info for Buenos Aires. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.