Buenos Aires in September
Spring arrives
- Temperature
- 11–20°C
- Crowds
- Moderate
- Prices
- $$$
+Warm days and blossoms begin.
–Weather can still change quickly.
September is spring: parks bloom and patios open.
Buenos Aires vs Medellín in September
Buenos Aires and Medellín are close in September. Buenos Aires averages 11–20°C with moderate crowds; Medellín 18–28°C with moderate crowds.
By Daan · Last reviewed October 2026
Buenos Aires and Medellín
The verdict for September
- WeatherVery similar8/10 vs 7.5/10
- CrowdsVery similarModerate vs Moderate
- PricesVery similar$$$ vs $$$
- OverallVery similar7.3/10 vs 6.9/10
Medellín in September
Warm and calm
- Temperature
- 18–28°C
- Crowds
- Moderate
- Prices
- $$$
+Good weather and calmer than August.
–Rain increases later.
September is a calm month with mixed weather and good value.
Scores and crowd levels are my own judgement; temperatures are monthly averages. Higher scores are better: quieter, cheaper and more pleasant.
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