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

In December, Buenos Aires averages 28°C high / 19°C low with about 77 mm of rain; Ulaanbaatar averages -13°C high / -26°C low with about 3 mm.

Buenos Aires vs Ulaanbaatar in December

Buenos Aires is the better pick in December — 83 vs 29 on SeasonMap's comfort score. Buenos Aires is hot, a little rain, clean air, while Ulaanbaatar is freezing, dry, poor air quality.

Buenos Aires vs Ulaanbaatar — December climate, side by side

	🇦🇷 Buenos Aires	🇲🇳 Ulaanbaatar
Comfort score	83/100 (A)	29/100 (F)
Feels-like high	30°C	-18°C
Avg high / low	28° / 19°	-13° / -26°
Rainfall	77 mm	3 mm
Rainy days	8	1
Humidity	64%	66%
Air quality (AQI)	32	122

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

Month by month

Buenos Aires vs Ulaanbaatar in December — FAQ

Is December better in Buenos Aires or Ulaanbaatar?: Buenos Aires is the better pick in December — 83 vs 29 on SeasonMap's comfort score. Buenos Aires is hot, a little rain, clean air, while Ulaanbaatar is freezing, dry, poor air quality.
What is the weather like in Buenos Aires vs Ulaanbaatar in December?: In December, Buenos Aires averages 28°C high / 19°C low with about 77 mm of rain; Ulaanbaatar averages -13°C high / -26°C low with about 3 mm.