What is the weather like in Chiang Mai vs Ulaanbaatar in December?

In December, Chiang Mai averages 30°C high / 18°C low with about 8 mm of rain; Ulaanbaatar averages -13°C high / -26°C low with about 3 mm.

Chiang Mai vs Ulaanbaatar in December

Chiang Mai is the better pick in December — 84 vs 29 on SeasonMap's comfort score. Chiang Mai is hot, dry, while Ulaanbaatar is freezing, dry, poor air quality.

Chiang Mai vs Ulaanbaatar — December climate, side by side

	🇹🇭 Chiang Mai	🇲🇳 Ulaanbaatar
Comfort score	84/100 (A)	29/100 (F)
Feels-like high	33°C	-18°C
Avg high / low	30° / 18°	-13° / -26°
Rainfall	8 mm	3 mm
Rainy days	1	1
Humidity	74%	66%
Air quality (AQI)	79	122

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

Month by month

Chiang Mai vs Ulaanbaatar in December — FAQ

Is December better in Chiang Mai or Ulaanbaatar?: Chiang Mai is the better pick in December — 84 vs 29 on SeasonMap's comfort score. Chiang Mai is hot, dry, while Ulaanbaatar is freezing, dry, poor air quality.
What is the weather like in Chiang Mai vs Ulaanbaatar in December?: In December, Chiang Mai averages 30°C high / 18°C low with about 8 mm of rain; Ulaanbaatar averages -13°C high / -26°C low with about 3 mm.