Sydney vs Ulaanbaatar in December

Sydney is the better pick in December — 91 vs 28 on SeasonMap's comfort score. Sydney is warm, a little rain, clean air, while Ulaanbaatar is freezing, dry, poor air quality.

Sydney vs UlaanbaatarDecember climate, side by side

SydneyUlaanbaatar
Comfort score91/100 (S)28/100 (F)
Feels-like high26°C-17°C
Avg high / low24° / 18°-12° / -23°
Rainfall54 mm4 mm
Rainy days91
Humidity72%70%
Air quality (AQI)49122

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

Sydney vs Ulaanbaatar in December — FAQ

Is December better in Sydney or Ulaanbaatar?
Sydney is the better pick in December — 91 vs 28 on SeasonMap's comfort score. Sydney is warm, a little rain, 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 / 18°C low with about 54 mm of rain; Ulaanbaatar averages -12°C high / -23°C low with about 4 mm.