What is the weather like in San Francisco vs Yosemite National Park in September?

In September, San Francisco averages 22°C high / 14°C low with about 3 mm of rain; Yosemite National Park averages 19°C high / 6°C low with about 28 mm.

San Francisco vs Yosemite National Park in September

San Francisco and Yosemite National Park are nearly tied in September — 96 vs 93 on SeasonMap's comfort score. San Francisco is nice, dry, clean air; Yosemite National Park is nice, dry, clean air.

San Francisco vs Yosemite National Park — September climate, side by side

	🇺🇸 San Francisco	🇺🇸 Yosemite National Park
Comfort score	96/100 (S)	93/100 (S)
Feels-like high	21°C	16°C
Avg high / low	22° / 14°	19° / 6°
Rainfall	3 mm	28 mm
Rainy days	1	5
Humidity	75%	49%
Air quality (AQI)	35	42

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

Month by month

San Francisco vs Yosemite National Park in September — FAQ

Is September better in San Francisco or Yosemite National Park?: San Francisco and Yosemite National Park are nearly tied in September — 96 vs 93 on SeasonMap's comfort score. San Francisco is nice, dry, clean air; Yosemite National Park is nice, dry, clean air.
What is the weather like in San Francisco vs Yosemite National Park in September?: In September, San Francisco averages 22°C high / 14°C low with about 3 mm of rain; Yosemite National Park averages 19°C high / 6°C low with about 28 mm.