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

In September, Katmai National Park averages 11°C high / 7°C low with about 139 mm of rain; Yosemite National Park averages 19°C high / 6°C low with about 28 mm.

Katmai National Park vs Yosemite National Park in September

Yosemite National Park is the better pick in September — 93 vs 75 on SeasonMap's comfort score. Yosemite National Park is nice, dry, clean air, while Katmai National Park is cool, rainy, clean air.

Katmai National Park vs Yosemite National Park — September climate, side by side

	🇺🇸 Katmai National Park	🇺🇸 Yosemite National Park
Comfort score	75/100 (B)	93/100 (S)
Feels-like high	10°C	16°C
Avg high / low	11° / 7°	19° / 6°
Rainfall	139 mm	28 mm
Rainy days	18	5
Humidity	87%	49%
Air quality (AQI)	24	42

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

Month by month

Katmai National Park vs Yosemite National Park in September — FAQ

Is September better in Katmai National Park or Yosemite National Park?: Yosemite National Park is the better pick in September — 93 vs 75 on SeasonMap's comfort score. Yosemite National Park is nice, dry, clean air, while Katmai National Park is cool, rainy, clean air.
What is the weather like in Katmai National Park vs Yosemite National Park in September?: In September, Katmai National Park averages 11°C high / 7°C low with about 139 mm of rain; Yosemite National Park averages 19°C high / 6°C low with about 28 mm.