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

In August, Isle Royale National Park averages 17°C high / 15°C low with about 68 mm of rain; Mackinac Island averages 23°C high / 16°C low with about 76 mm.

Isle Royale 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 Isle Royale National Park is nice, a little rain, clean air.

Isle Royale National Park vs Mackinac Island — August climate, side by side

	🇺🇸 Isle Royale National Park	🇺🇸 Mackinac Island
Comfort score	85/100 (A)	89/100 (A)
Feels-like high	17°C	24°C
Avg high / low	17° / 15°	23° / 16°
Rainfall	68 mm	76 mm
Rainy days	9	9
Humidity	85%	77%
Air quality (AQI)	40	39

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

Month by month

Isle Royale National Park 🇺🇸 United Statesnice, a little rain, clean air · best July85
Mackinac Island 🇺🇸 United Stateswarm, a little rain, clean air · best August89

Isle Royale National Park vs Mackinac Island in August — FAQ

Is August better in Isle Royale 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 Isle Royale National Park is nice, a little rain, clean air.
What is the weather like in Isle Royale National Park vs Mackinac Island in August?: In August, Isle Royale National Park averages 17°C high / 15°C low with about 68 mm of rain; Mackinac Island averages 23°C high / 16°C low with about 76 mm.