Climate almanac
Buenos Aires
Buenos Aires F.D., Argentina · -34.61°, -58.38°
What is the weather like in Buenos Aires in September?
In September, Buenos Aires is typically 64°F (18°C) during the day and 53°F (12°C) at night. The month brings about 2.7 in (68 mm) of precipitation in total.
- Average high64°F (18°C)
- Average low53°F (12°C)
- Precipitation2.7 in (68 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)