Acadia National Park vs Rocky Mountain National Park in September

Acadia National Park and Rocky Mountain National Park are nearly tied in September — 87 vs 90 on SeasonMap's comfort score. Acadia National Park is nice, rainy, clean air; Rocky Mountain National Park is cool, a little rain, clean air.

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

Acadia National ParkRocky Mountain National Park
Comfort score87/100 (A)90/100 (S)
Feels-like high18°C15°C
Avg high / low18° / 11°18° / 6°
Rainfall93 mm41 mm
Rainy days76
Humidity81%57%
Air quality (AQI)3740

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

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

Is September better in Acadia National Park or Rocky Mountain National Park?
Acadia National Park and Rocky Mountain National Park are nearly tied in September — 87 vs 90 on SeasonMap's comfort score. Acadia National Park is nice, rainy, clean air; Rocky Mountain National Park is cool, a little rain, clean air.
What is the weather like in Acadia National Park vs Rocky Mountain National Park in September?
In September, Acadia National Park averages 18°C high / 11°C low with about 93 mm of rain; Rocky Mountain National Park averages 18°C high / 6°C low with about 41 mm.