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

In September, Buenos Aires averages 19°C high / 12°C low with about 66 mm of rain; Ulaanbaatar averages 17°C high / 2°C low with about 43 mm.

Buenos Aires vs Ulaanbaatar in September

Buenos Aires is the better pick in September — 86 vs 78 on SeasonMap's comfort score. Buenos Aires is nice, a little rain, clean air, while Ulaanbaatar is cool, a little rain, clean air.

Buenos Aires vs Ulaanbaatar — September climate, side by side

	🇦🇷 Buenos Aires	🇲🇳 Ulaanbaatar
Comfort score	86/100 (A)	78/100 (B)
Feels-like high	17°C	14°C
Avg high / low	19° / 12°	17° / 2°
Rainfall	66 mm	43 mm
Rainy days	6	8
Humidity	74%	64%
Air quality (AQI)	34	36

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

Month by month

Buenos Aires vs Ulaanbaatar in September — FAQ

Is September better in Buenos Aires or Ulaanbaatar?: Buenos Aires is the better pick in September — 86 vs 78 on SeasonMap's comfort score. Buenos Aires is nice, a little rain, clean air, while Ulaanbaatar is cool, a little rain, clean air.
What is the weather like in Buenos Aires vs Ulaanbaatar in September?: In September, Buenos Aires averages 19°C high / 12°C low with about 66 mm of rain; Ulaanbaatar averages 17°C high / 2°C low with about 43 mm.