Buenos Aires in September
Spring arrives
By Daan · Last reviewed October 2026
The short answer
September is one of the best months to visit Buenos Aires.
September is spring: parks bloom and patios open.
September in detail
What September actually feels like
- Weather
- 11–20°C
- Mild with sunny spells and showers.
- Crowds
- Moderate
- Steady visitor numbers; the main sights are busiest around midday.
- Prices
- $$$
- Mid-range hotel rates.
+Warm days and blossoms begin.
–Weather can still change quickly.
My tip for September
Spend an afternoon in Palermo's parks.
- Parks
- Patios
- Dining
How September compares
Against the other eleven months
2nd of 12 overall in Buenos Aires, 4th for weather, 3rd for space, 3rd for value. The emptiest month is June; the best value is June.
See all twelve months for Buenos AiresNot set on September?
Even stronger months in Buenos Aires
Also good in September
Weather
Weather in Buenos Aires in September
In September Buenos Aires averages a high of 20°C (68°F) and a low of 11°C (52°F), with about 81 mm of rain or snow over 7 wet days. The warmest month is January (around 30°C) and the coolest is June (around 16°C); the wettest month is January.
- Average high
- 20°C
- 68°F
- Average low
- 11°C
- 52°F
- Precipitation
- 81 mm
- Wet days
- 7
Climate data: Servicio Meteorológico Nacional. Temperatures are averages of daily highs and lows.
Quick answers
Buenos Aires in September: the questions people ask
- Is September a good time to visit Buenos Aires?
- September is one of the best months to visit Buenos Aires. It ranks 2 of 12 months in Buenos Aires overall (4 for weather, 3 for space, 3 for value). The main upside: Warm days and blossoms begin. The main downside: Weather can still change quickly.
- What is the weather like in Buenos Aires in September?
- Average highs are around 20°C and lows around 11°C. Expect about 81 mm of rain or snow over roughly 7 wet days. Mild with sunny spells and showers. For comparison, the warmest month is January (around 30°C) and the coolest is June (around 16°C).
- Is Buenos Aires crowded in September?
- Crowds are moderate. Steady visitor numbers; the main sights are busiest around midday. The quietest month is June.
- How expensive is Buenos Aires in September?
- Prices are at level 3 of 5 ($$$). Mid-range hotel rates. The best-value month is June.
- When is the best time to visit Buenos Aires?
- In the CrowdFreeViews month scores, October is the best month overall (September ranks 2 of 12). The quietest month is June and the best value is June.
Ready to book September in Buenos Aires?
Warm days and blossoms begin.
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