Argentina (Buenos Aires)
September
Weather in Argentina for September 2025
Your guide to Argentina weather in September - trends and predictions
In general, the average temperature in Argentina at the beginning of September is 15 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 17.7 °C by the end of September.
The climate of Argentina in September is notably wet, with an average of 11 rainy days, and a total of 87.1 mm of precipitation.
Is September a good time to visit Argentina? check out the best time to travel to Argentina page.
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Temperatures
Rain 🌧️
More
19
Dry days
11
Rainy days
0
Snow days
17°/11°
Temperatures
23 km/h
Avg max wind
72 %
Avg humidity
Argentina in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  16° | 2  17° | 3  15° | 4  15° | 5 12° | 6 15° | 7  15° |
| 8 16° | 9 17° | 10  18° | 11  16° | 12 15° | 13 15° | 14 17° |
| 15  19° | 16 21° | 17 17° | 18 18° | 19 17° | 20  18° | 21  20° |
| 22 19° | 23 17° | 24 17° | 25 16° | 26 14° | 27 17° | 28 20° |
| 29 20° | 30 20° |
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Temperatures trend during September in Argentina
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Partly cloudy | 16° /10° | 1.1 mm | 5 | |
| 2 Sept. | Heavy rain | 17° /10° | 19 mm | 5 | |
| 3 Sept. | Moderate rain | 15° /10° | 21.8 mm | 5 | |
| 4 Sept. | Overcast | 15° /9° | 0.1 mm | 4 | |
| 5 Sept. | Partly cloudy | 12° /7° | 0 mm | 4 | |
| 6 Sept. | Partly cloudy | 15° /9° | 0 mm | 5 | |
| 7 Sept. | Light rain shower | 15° /11° | 7.4 mm | 4 | |
| 8 Sept. | Partly cloudy | 16° /9° | 0.1 mm | 5 | |
| 9 Sept. | Overcast | 17° /11° | 0 mm | 5 | |
| 10 Sept. | Sunny | 18° /12° | 0.4 mm | 5 | |
| 11 Sept. | Moderate or heavy rain shower | 16° /12° | 13 mm | 5 | |
| 12 Sept. | Overcast | 15° /10° | 0 mm | 4 | |
| 13 Sept. | Partly cloudy | 15° /9° | 0 mm | 5 | |
| 14 Sept. | Partly cloudy | 17° /9° | 0 mm | 6 | |
| 15 Sept. | Cloudy | 19° /10° | 0 mm | 6 | |
| 16 Sept. | Sunny | 21° /13° | 0 mm | 6 | |
| 17 Sept. | Light rain shower | 17° /12° | 4.4 mm | 5 | |
| 18 Sept. | Partly cloudy | 18° /12° | 0.4 mm | 6 | |
| 19 Sept. | Patchy rain possible | 17° /12° | 3 mm | 5 | |
| 20 Sept. | Light drizzle | 18° /12° | 1.6 mm | 5 | |
| 21 Sept. | Fog | 20° /14° | 0.3 mm | 6 | |
| 22 Sept. | Patchy rain possible | 19° /14° | 4 mm | 5 | |
| 23 Sept. | Patchy rain possible | 17° /13° | 0.1 mm | 5 | |
| 24 Sept. | Partly cloudy | 17° /13° | 0 mm | 6 | |
| 25 Sept. | Cloudy | 16° /12° | 0 mm | 5 | |
| 26 Sept. | Light rain shower | 14° /11° | 7.1 mm | 4 | |
| 27 Sept. | Partly cloudy | 17° /10° | 0 mm | 6 | |
| 28 Sept. | Partly cloudy | 20° /11° | 0 mm | 6 | |
| 29 Sept. | Light drizzle | 20° /13° | 0.3 mm | 5 | |
| 30 Sept. | Sunny | 20° /13° | 3 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Argentina 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 Argentina forecast closer to your planned date for the most up-to-date weather information.
Argentina in September - FAQ
What are the expected maximum and minimum temperatures in Argentina 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 Argentina during September?
Moderate rainfall is anticipated in Argentina during September, with a total of 87.1 mm spread over approximately 11 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Argentina during September?
The average wind speed in Argentina during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Argentina in September?
As you prepare for your trip to Argentina in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Argentina, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Argentina
Explore the daily rainfall trends and prepare for Argentinas September weather 💧
UV exposure in Argentina during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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