Buenos Aires
September
Weather in Buenos Aires for September 2027
Your guide to Buenos Aires weather in September - trends and predictions
In general, the average temperature in Buenos Aires at the beginning of September is 14.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 18 °C by the end of September.
Buenos Aires experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 75.5 mm.
Is September a good time to visit Buenos Aires? check out the best time to travel to Buenos Aires page.
Temperatures
Rain 🌧️
More
24
Dry days
6
Rainy days
0
Snow days
17°/11°
Temperatures
22 km/h
Avg max wind
72 %
Avg humidity
Buenos Aires Weather September
Move between months or click on a day
Temperatures trend during September in Buenos Aires
See the weather trend as well as the moving average line
September weather in Buenos Aires day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain | 16° /11° | 3.2 mm | 5 | |
| 2 Sept. |  Heavy rain | 17° /11° | 9.6 mm | 5 | |
| 3 Sept. |  Moderate rain | 16° /11° | 11.2 mm | 4 | |
| 4 Sept. |  Overcast | 14° /8° | 0 mm | 4 | |
| 5 Sept. |  Sunny | 12° /7° | 0 mm | 4 | |
| 6 Sept. | Sunny | 12° /7° | 0 mm | 5 | |
| 7 Sept. | Light rain | 14° /9° | 3.7 mm | 4 | |
| 8 Sept. |  Partly cloudy | 15° /9° | 0 mm | 5 | |
| 9 Sept. | Overcast | 17° /11° | 0.2 mm | 4 | |
| 10 Sept. | Sunny | 18° /12° | 0.2 mm | 5 | |
| 11 Sept. |  Moderate or heavy rain shower | 17° /12° | 6.7 mm | 4 | |
| 12 Sept. | Overcast | 14° /10° | 0.1 mm | 4 | |
| 13 Sept. | Partly cloudy | 14° /8° | 0.1 mm | 5 | |
| 14 Sept. | Partly cloudy | 17° /9° | 0.1 mm | 6 | |
| 15 Sept. | Partly cloudy | 18° /10° | 0.1 mm | 5 | |
| 16 Sept. | Sunny | 18° /11° | 0 mm | 6 | |
| 17 Sept. |  Patchy rain possible | 19° /12° | 2.2 mm | 5 | |
| 18 Sept. | Partly cloudy | 18° /13° | 0.2 mm | 5 | |
| 19 Sept. | Light rain | 19° /14° | 2.8 mm | 5 | |
| 20 Sept. | Moderate or heavy rain shower | 19° /13° | 9.2 mm | 4 | |
| 21 Sept. |  Fog | 18° /12° | 0.4 mm | 5 | |
| 22 Sept. | Patchy rain possible | 17° /11° | 2.3 mm | 5 | |
| 23 Sept. | Patchy rain possible | 17° /10° | 0 mm | 4 | |
| 24 Sept. | Partly cloudy | 17° /11° | 0 mm | 5 | |
| 25 Sept. | Overcast | 18° /12° | 0 mm | 4 | |
| 26 Sept. | Light rain | 16° /12° | 3.6 mm | 4 | |
| 27 Sept. | Moderate rain | 17° /11° | 12.7 mm | 4 | |
| 28 Sept. | Patchy rain possible | 19° /12° | 1.7 mm | 5 | |
| 29 Sept. | Light rain | 19° /14° | 3.2 mm | 4 | |
| 30 Sept. | Patchy rain possible | 20° /12° | 2.1 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Buenos Aires in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Buenos Aires forecast closer to your planned date for the most up-to-date weather information.
Change Month
Buenos Aires in September - FAQ
What are the expected maximum and minimum temperatures in Buenos Aires during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Buenos Aires during September?
Moderate rainfall is anticipated in Buenos Aires during September, with a total of 75.5 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Buenos Aires during September?
The average wind speed in Buenos Aires during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Buenos Aires
Explore the daily rainfall trends and prepare for Buenos Airess September weather 💧
Typically, Buenos Aires has 6 rainy days in September with a total of 75.5 mm of rainfall.
Quick links
More Buenos Aires weather pages
You are here
Where is Buenos Aires?Get accurate weather forecasts for Buenos Aires, located at latitude -34.613 and longitude -58.377. Stay updated with localized weather information tailored for Buenos Aires.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.