What is the weather like in Buenos Aires vs Santiago in September?

In September, Buenos Aires averages 19°C high / 12°C low with about 66 mm of rain; Santiago averages 21°C high / 5°C low with about 42 mm.

Buenos Aires vs Santiago in September

Buenos Aires and Santiago are nearly tied in September — 86 vs 83 on SeasonMap's comfort score. Buenos Aires is nice, a little rain, clean air; Santiago is nice, a little rain.

Buenos Aires vs Santiago — September climate, side by side

	Buenos Aires	Santiago
Comfort score	86/100 (A)	83/100 (A)
Feels-like high	17°C	20°C
Avg high / low	19° / 12°	21° / 5°
Rainfall	66 mm	42 mm
Rainy days	6	6
Humidity	74%	66%
Air quality (AQI)	34	96

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Buenos Aires vs Santiago in September — FAQ

Is September better in Buenos Aires or Santiago?: Buenos Aires and Santiago are nearly tied in September — 86 vs 83 on SeasonMap's comfort score. Buenos Aires is nice, a little rain, clean air; Santiago is nice, a little rain.
What is the weather like in Buenos Aires vs Santiago in September?: In September, Buenos Aires averages 19°C high / 12°C low with about 66 mm of rain; Santiago averages 21°C high / 5°C low with about 42 mm.