What is the weather like in Kathmandu vs San Francisco in September?

In September, Kathmandu averages 29°C high / 20°C low with about 438 mm of rain; San Francisco averages 22°C high / 14°C low with about 3 mm.

Kathmandu vs San Francisco in September

San Francisco is the better pick in September — 96 vs 50 on SeasonMap's comfort score. San Francisco is nice, dry, clean air, while Kathmandu is hot, soaked, muggy air.

Kathmandu vs San Francisco — September climate, side by side

	🇳🇵 Kathmandu	🇺🇸 San Francisco
Comfort score	50/100 (D)	96/100 (S)
Feels-like high	33°C	21°C
Avg high / low	29° / 20°	22° / 14°
Rainfall	438 mm	3 mm
Rainy days	29	1
Humidity	90%	75%
Air quality (AQI)	63	35

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

Month by month

Kathmandu vs San Francisco in September — FAQ

Is September better in Kathmandu or San Francisco?: San Francisco is the better pick in September — 96 vs 50 on SeasonMap's comfort score. San Francisco is nice, dry, clean air, while Kathmandu is hot, soaked, muggy air.
What is the weather like in Kathmandu vs San Francisco in September?: In September, Kathmandu averages 29°C high / 20°C low with about 438 mm of rain; San Francisco averages 22°C high / 14°C low with about 3 mm.