Isle Royale National Park vs Mackinac Island: which is better, month by month

Isle Royale National Park beats Mackinac Island in 7 of 12 months — its lead peaks in November (58 vs 42) — while Mackinac Island wins August; they are within 3 points in the other 4 months.

Each place is scored under the lens that suits its type — they are different kinds of destination, so the scores are each place at its own best. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.

Isle Royale National Park

🇺🇸 United States · continental climate

Best month
July 87/100
Months won
7 of 12

Mackinac Island

🇺🇸 United States · continental climate

Best month
August 89/100
Months won
1 of 12

Isle Royale National Park vs Mackinac Island — all 12 months

MonthIsle Royale National ParkMackinac IslandWinnerGap
January38Ffreezing, a little rain, clean air28Ffreezing, a little rain, clean airIsle Royale National Park10
February41Ffreezing, a little rain, clean air36Ffreezing, a little rain, clean airIsle Royale National Park5
March54Dfreezing, a little rain, clean air46Ffreezing, a little rain, clean airIsle Royale National Park8
April63Cfreezing, rainy, clean air55Dcold, rainy, clean airIsle Royale National Park8
May75Bcold, a little rain, clean air74Bcool, a little rain, clean airTie1
June79Bcold, a little rain, clean air79Bnice, rainy, muggy airTie0
July87Acool, a little rain, clean air87Awarm, a little rain, clean airTie0
August85Anice, a little rain, clean air89Awarm, a little rain, clean airMackinac Island4
September81Acool, rainy, clean air82Anice, a little rain, clean airTie1
October71Bcold, a little rain, clean air62Ccool, rainy, clean airIsle Royale National Park9
November58Dfreezing, a little rain, clean air42Fcold, a little rain, clean airIsle Royale National Park16
December43Ffreezing, a little rain, clean air30Ffreezing, a little rain, clean airIsle Royale National Park13

A month is a tie when the two are within 3 points. The widest gap is November (58 vs 42). Tap a month for that month's temperature, rain, humidity and air quality side by side.