What is the weather like in Mackinac Island vs Yellowstone National Park in September?

In September, Mackinac Island averages 20°C high / 12°C low with about 71 mm of rain; Yellowstone National Park averages 17°C high / 1°C low with about 59 mm.

Mackinac Island vs Yellowstone National Park in September

Mackinac Island and Yellowstone National Park are nearly tied in September — 82 vs 84 on SeasonMap's comfort score. Mackinac Island is nice, a little rain, clean air; Yellowstone National Park is cool, a little rain, clean air.

Mackinac Island vs Yellowstone National Park — September climate, side by side

	Mackinac Island	Yellowstone National Park
Comfort score	82/100 (A)	84/100 (A)
Feels-like high	20°C	14°C
Avg high / low	20° / 12°	17° / 1°
Rainfall	71 mm	59 mm
Rainy days	10	11
Humidity	78%	59%
Air quality (AQI)	41	43

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

Mackinac Island vs Yellowstone National Park in September — FAQ

Is September better in Mackinac Island or Yellowstone National Park?: Mackinac Island and Yellowstone National Park are nearly tied in September — 82 vs 84 on SeasonMap's comfort score. Mackinac Island is nice, a little rain, clean air; Yellowstone National Park is cool, a little rain, clean air.
What is the weather like in Mackinac Island vs Yellowstone National Park in September?: In September, Mackinac Island averages 20°C high / 12°C low with about 71 mm of rain; Yellowstone National Park averages 17°C high / 1°C low with about 59 mm.