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

In September, Buenos Aires averages 19°C high / 12°C low with about 66 mm of rain; Portillo averages 4°C high / -3°C low with about 47 mm.

Buenos Aires vs Portillo in September

Buenos Aires is the better pick in September — 86 vs 79 on SeasonMap's comfort score. Buenos Aires is nice, a little rain, clean air, while Portillo is cold, a little rain, clean air.

Buenos Aires vs Portillo — September climate, side by side

	Buenos Aires	Portillo
Comfort score	86/100 (A)	79/100 (B)
Feels-like high	17°C	3°C
Avg high / low	19° / 12°	4° / -3°
Rainfall	66 mm	47 mm
Rainy days	6	6
Humidity	74%	59%
Air quality (AQI)	34	50

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

Buenos Aires vs Portillo in September — FAQ

Is September better in Buenos Aires or Portillo?: Buenos Aires is the better pick in September — 86 vs 79 on SeasonMap's comfort score. Buenos Aires is nice, a little rain, clean air, while Portillo is cold, a little rain, clean air.
What is the weather like in Buenos Aires vs Portillo in September?: In September, Buenos Aires averages 19°C high / 12°C low with about 66 mm of rain; Portillo averages 4°C high / -3°C low with about 47 mm.