What is the weather like in Buenos Aires vs San Martín de los Andes in September?

In September, Buenos Aires averages 19°C high / 12°C low with about 66 mm of rain; San Martín de los Andes averages 10°C high / 3°C low with about 102 mm.

Buenos Aires vs San Martín de los Andes in September

Buenos Aires is the better pick in September — 86 vs 67 on SeasonMap's comfort score. Buenos Aires is nice, a little rain, clean air, while San Martín de los Andes is cold, rainy, clean air.

Buenos Aires vs San Martín de los Andes — September climate, side by side

	Buenos Aires	San Martín de los Andes
Comfort score	86/100 (A)	67/100 (C)
Feels-like high	17°C	7°C
Avg high / low	19° / 12°	10° / 3°
Rainfall	66 mm	102 mm
Rainy days	6	12
Humidity	74%	81%
Air quality (AQI)	34	29

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

Buenos Aires vs San Martín de los Andes in September — FAQ

Is September better in Buenos Aires or San Martín de los Andes?: Buenos Aires is the better pick in September — 86 vs 67 on SeasonMap's comfort score. Buenos Aires is nice, a little rain, clean air, while San Martín de los Andes is cold, rainy, clean air.
What is the weather like in Buenos Aires vs San Martín de los Andes in September?: In September, Buenos Aires averages 19°C high / 12°C low with about 66 mm of rain; San Martín de los Andes averages 10°C high / 3°C low with about 102 mm.