Rocky Mountain National Park vs Yosemite National Park in September

Rocky Mountain National Park and Yosemite National Park are nearly tied in September — 90 vs 93 on SeasonMap's comfort score. Rocky Mountain National Park is cool, a little rain, clean air; Yosemite National Park is nice, dry, clean air.

Rocky Mountain National Park vs Yosemite National ParkSeptember climate, side by side

Rocky Mountain National ParkYosemite National Park
Comfort score90/100 (S)93/100 (S)
Feels-like high15°C16°C
Avg high / low18° / 6°19° / 6°
Rainfall41 mm28 mm
Rainy days65
Humidity57%49%
Air quality (AQI)4042

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

Rocky Mountain National Park vs Yosemite National Park in September — FAQ

Is September better in Rocky Mountain National Park or Yosemite National Park?
Rocky Mountain National Park and Yosemite National Park are nearly tied in September — 90 vs 93 on SeasonMap's comfort score. Rocky Mountain National Park is cool, a little rain, clean air; Yosemite National Park is nice, dry, clean air.
What is the weather like in Rocky Mountain National Park vs Yosemite National Park in September?
In September, Rocky Mountain National Park averages 18°C high / 6°C low with about 41 mm of rain; Yosemite National Park averages 19°C high / 6°C low with about 28 mm.