What is the weather like in Isle Royale National Park vs Milwaukee in September?

In September, Isle Royale National Park averages 16°C high / 13°C low with about 84 mm of rain; Milwaukee averages 24°C high / 15°C low with about 85 mm.

Isle Royale National Park vs Milwaukee in September

Milwaukee is the better pick in September — 90 vs 81 on SeasonMap's comfort score. Milwaukee is warm, rainy, clean air, while Isle Royale National Park is cool, rainy, clean air.

Isle Royale National Park vs Milwaukee — September climate, side by side

	🇺🇸 Isle Royale National Park	🇺🇸 Milwaukee
Comfort score	81/100 (A)	90/100 (S)
Feels-like high	14°C	24°C
Avg high / low	16° / 13°	24° / 15°
Rainfall	84 mm	85 mm
Rainy days	10	7
Humidity	81%	75%
Air quality (AQI)	37	44

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

Month by month

Isle Royale National Park vs Milwaukee in September — FAQ

Is September better in Isle Royale National Park or Milwaukee?: Milwaukee is the better pick in September — 90 vs 81 on SeasonMap's comfort score. Milwaukee is warm, rainy, clean air, while Isle Royale National Park is cool, rainy, clean air.
What is the weather like in Isle Royale National Park vs Milwaukee in September?: In September, Isle Royale National Park averages 16°C high / 13°C low with about 84 mm of rain; Milwaukee averages 24°C high / 15°C low with about 85 mm.