What is the weather like in Hong Kong vs Ulaanbaatar in September?

In September, Hong Kong averages 31°C high / 26°C low with about 262 mm of rain; Ulaanbaatar averages 17°C high / 2°C low with about 43 mm.

Hong Kong vs Ulaanbaatar in September

Ulaanbaatar is the better pick in September — 78 vs 47 on SeasonMap's comfort score. Ulaanbaatar is cool, a little rain, clean air, while Hong Kong is sweltering, soaked, muggy air.

Hong Kong vs Ulaanbaatar — September climate, side by side

	🇭🇰 Hong Kong	🇲🇳 Ulaanbaatar
Comfort score	47/100 (F)	78/100 (B)
Feels-like high	37°C	14°C
Avg high / low	31° / 26°	17° / 2°
Rainfall	262 mm	43 mm
Rainy days	20	8
Humidity	84%	64%
Air quality (AQI)	84	36

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

Month by month

Hong Kong vs Ulaanbaatar in September — FAQ

Is September better in Hong Kong or Ulaanbaatar?: Ulaanbaatar is the better pick in September — 78 vs 47 on SeasonMap's comfort score. Ulaanbaatar is cool, a little rain, clean air, while Hong Kong is sweltering, soaked, muggy air.
What is the weather like in Hong Kong vs Ulaanbaatar in September?: In September, Hong Kong averages 31°C high / 26°C low with about 262 mm of rain; Ulaanbaatar averages 17°C high / 2°C low with about 43 mm.