Buenos Aires vs Ulaanbaatar in December

Buenos Aires is the better pick in December — 86 vs 28 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 UlaanbaatarDecember climate, side by side

Buenos AiresUlaanbaatar
Comfort score86/100 (A)28/100 (F)
Feels-like high29°C-17°C
Avg high / low27° / 19°-12° / -23°
Rainfall69 mm4 mm
Rainy days71
Humidity66%70%
Air quality (AQI)32122

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

Buenos Aires vs Ulaanbaatar in December — FAQ

Is December better in Buenos Aires or Ulaanbaatar?
Buenos Aires is the better pick in December — 86 vs 28 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 27°C high / 19°C low with about 69 mm of rain; Ulaanbaatar averages -12°C high / -23°C low with about 4 mm.