What is the weather like in Acadia National Park vs Mackinac Island in August?

In August, Acadia National Park averages 21°C high / 14°C low with about 91 mm of rain; Mackinac Island averages 23°C high / 16°C low with about 76 mm.

Acadia National Park vs Mackinac Island in August

Mackinac Island is the better pick in August — 89 vs 85 on SeasonMap's comfort score. Mackinac Island is warm, a little rain, clean air, while Acadia National Park is nice, rainy, clean air.

Acadia National Park vs Mackinac Island — August climate, side by side

	🇺🇸 Acadia National Park	🇺🇸 Mackinac Island
Comfort score	85/100 (A)	89/100 (A)
Feels-like high	22°C	24°C
Avg high / low	21° / 14°	23° / 16°
Rainfall	91 mm	76 mm
Rainy days	9	9
Humidity	83%	77%
Air quality (AQI)	37	39

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

Month by month

Acadia National Park vs Mackinac Island in August — FAQ

Is August better in Acadia National Park or Mackinac Island?: Mackinac Island is the better pick in August — 89 vs 85 on SeasonMap's comfort score. Mackinac Island is warm, a little rain, clean air, while Acadia National Park is nice, rainy, clean air.
What is the weather like in Acadia National Park vs Mackinac Island in August?: In August, Acadia National Park averages 21°C high / 14°C low with about 91 mm of rain; Mackinac Island averages 23°C high / 16°C low with about 76 mm.