What is the weather like in Gangtok vs Kathmandu in September?

In September, Gangtok averages 22°C high / 17°C low with about 694 mm of rain; Kathmandu averages 29°C high / 20°C low with about 438 mm.

Gangtok vs Kathmandu in September

Gangtok is the better pick in September — 60 vs 50 on SeasonMap's comfort score. Gangtok is warm, soaked, clean air, while Kathmandu is hot, soaked, muggy air.

Gangtok vs Kathmandu — September climate, side by side

	🇮🇳 Gangtok	🇳🇵 Kathmandu
Comfort score	60/100 (C)	50/100 (D)
Feels-like high	24°C	33°C
Avg high / low	22° / 17°	29° / 20°
Rainfall	694 mm	438 mm
Rainy days	28	29
Humidity	91%	90%
Air quality (AQI)	40	63

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

Month by month

Gangtok vs Kathmandu in September — FAQ

Is September better in Gangtok or Kathmandu?: Gangtok is the better pick in September — 60 vs 50 on SeasonMap's comfort score. Gangtok is warm, soaked, clean air, while Kathmandu is hot, soaked, muggy air.
What is the weather like in Gangtok vs Kathmandu in September?: In September, Gangtok averages 22°C high / 17°C low with about 694 mm of rain; Kathmandu averages 29°C high / 20°C low with about 438 mm.