Bar Harbor vs Yellowstone National Park in September

Bar Harbor and Yellowstone National Park are nearly tied in September — 81 vs 84 on SeasonMap's comfort score. Bar Harbor is nice, rainy, clean air; Yellowstone National Park is cool, a little rain, clean air.

Bar Harbor vs Yellowstone National ParkSeptember climate, side by side

Bar HarborYellowstone National Park
Comfort score81/100 (A)84/100 (A)
Feels-like high19°C14°C
Avg high / low19° / 11°17° / 1°
Rainfall93 mm59 mm
Rainy days711
Humidity81%59%
Air quality (AQI)3743

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

Bar Harbor vs Yellowstone National Park in September — FAQ

Is September better in Bar Harbor or Yellowstone National Park?
Bar Harbor and Yellowstone National Park are nearly tied in September — 81 vs 84 on SeasonMap's comfort score. Bar Harbor is nice, rainy, clean air; Yellowstone National Park is cool, a little rain, clean air.
What is the weather like in Bar Harbor vs Yellowstone National Park in September?
In September, Bar Harbor averages 19°C high / 11°C low with about 93 mm of rain; Yellowstone National Park averages 17°C high / 1°C low with about 59 mm.