What is the weather like in Sydney vs Ulaanbaatar in December?

In December, Sydney averages 24°C high / 19°C low with about 87 mm of rain; Ulaanbaatar averages -13°C high / -26°C low with about 3 mm.

Sydney vs Ulaanbaatar in December

Sydney is the better pick in December — 87 vs 29 on SeasonMap's comfort score. Sydney is warm, rainy, clean air, while Ulaanbaatar is freezing, dry, poor air quality.

Sydney vs Ulaanbaatar — December climate, side by side

	🇦🇺 Sydney	🇲🇳 Ulaanbaatar
Comfort score	87/100 (A)	29/100 (F)
Feels-like high	25°C	-18°C
Avg high / low	24° / 19°	-13° / -26°
Rainfall	87 mm	3 mm
Rainy days	10	1
Humidity	72%	66%
Air quality (AQI)	49	122

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

Month by month

Sydney vs Ulaanbaatar in December — FAQ

Is December better in Sydney or Ulaanbaatar?: Sydney is the better pick in December — 87 vs 29 on SeasonMap's comfort score. Sydney is warm, rainy, clean air, while Ulaanbaatar is freezing, dry, poor air quality.
What is the weather like in Sydney vs Ulaanbaatar in December?: In December, Sydney averages 24°C high / 19°C low with about 87 mm of rain; Ulaanbaatar averages -13°C high / -26°C low with about 3 mm.