Kathmandu vs Ulaanbaatar in September

Ulaanbaatar is the better pick in September — 82 vs 55 on SeasonMap's comfort score. Ulaanbaatar is cool, a little rain, clean air, while Kathmandu is hot, soaked, very humid.

Kathmandu vs UlaanbaatarSeptember climate, side by side

KathmanduUlaanbaatar
Comfort score55/100 (D)82/100 (A)
Feels-like high30°C14°C
Avg high / low25° / 20°17° / 4°
Rainfall424 mm39 mm
Rainy days297
Humidity89%64%
Air quality (AQI)6336

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

Kathmandu vs Ulaanbaatar in September — FAQ

Is September better in Kathmandu or Ulaanbaatar?
Ulaanbaatar is the better pick in September — 82 vs 55 on SeasonMap's comfort score. Ulaanbaatar is cool, a little rain, clean air, while Kathmandu is hot, soaked, very humid.
What is the weather like in Kathmandu vs Ulaanbaatar in September?
In September, Kathmandu averages 25°C high / 20°C low with about 424 mm of rain; Ulaanbaatar averages 17°C high / 4°C low with about 39 mm.