What is the weather like in Channel Islands National Park vs Yosemite National Park in September?

In September, Channel Islands National Park averages 19°C high / 17°C low with about 5 mm of rain; Yosemite National Park averages 19°C high / 6°C low with about 28 mm.

Channel Islands National Park vs Yosemite National Park in September

Yosemite National Park is the better pick in September — 93 vs 89 on SeasonMap's comfort score. Yosemite National Park is nice, dry, clean air, while Channel Islands National Park is nice, dry, clean air.

Channel Islands National Park vs Yosemite National Park — September climate, side by side

	🇺🇸 Channel Islands National Park	🇺🇸 Yosemite National Park
Comfort score	89/100 (A)	93/100 (S)
Feels-like high	19°C	16°C
Avg high / low	19° / 17°	19° / 6°
Rainfall	5 mm	28 mm
Rainy days	1	5
Humidity	82%	49%
Air quality (AQI)	34	42

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

Month by month

Channel Islands National Park vs Yosemite National Park in September — FAQ

Is September better in Channel Islands National Park or Yosemite National Park?: Yosemite National Park is the better pick in September — 93 vs 89 on SeasonMap's comfort score. Yosemite National Park is nice, dry, clean air, while Channel Islands National Park is nice, dry, clean air.
What is the weather like in Channel Islands National Park vs Yosemite National Park in September?: In September, Channel Islands National Park averages 19°C high / 17°C low with about 5 mm of rain; Yosemite National Park averages 19°C high / 6°C low with about 28 mm.