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

In September, Sydney averages 20°C high / 13°C low with about 73 mm of rain; Ulaanbaatar averages 17°C high / 2°C low with about 43 mm.

Sydney vs Ulaanbaatar in September

Sydney is the better pick in September — 89 vs 78 on SeasonMap's comfort score. Sydney is nice, a little rain, clean air, while Ulaanbaatar is cool, a little rain, clean air.

Sydney vs Ulaanbaatar — September climate, side by side

	🇦🇺 Sydney	🇲🇳 Ulaanbaatar
Comfort score	89/100 (A)	78/100 (B)
Feels-like high	19°C	14°C
Avg high / low	20° / 13°	17° / 2°
Rainfall	73 mm	43 mm
Rainy days	7	8
Humidity	66%	64%
Air quality (AQI)	45	36

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

Month by month

Sydney vs Ulaanbaatar in September — FAQ

Is September better in Sydney or Ulaanbaatar?: Sydney is the better pick in September — 89 vs 78 on SeasonMap's comfort score. Sydney is nice, a little rain, clean air, while Ulaanbaatar is cool, a little rain, clean air.
What is the weather like in Sydney vs Ulaanbaatar in September?: In September, Sydney averages 20°C high / 13°C low with about 73 mm of rain; Ulaanbaatar averages 17°C high / 2°C low with about 43 mm.