What is the weather like in Mackinac Island vs Milwaukee in September?

In September, Mackinac Island averages 20°C high / 12°C low with about 71 mm of rain; Milwaukee averages 24°C high / 15°C low with about 85 mm.

Mackinac Island vs Milwaukee in September

Milwaukee is the better pick in September — 90 vs 82 on SeasonMap's comfort score. Milwaukee is warm, rainy, clean air, while Mackinac Island is nice, a little rain, clean air.

Mackinac Island vs Milwaukee — September climate, side by side

	Mackinac Island	Milwaukee
Comfort score	82/100 (A)	90/100 (S)
Feels-like high	20°C	24°C
Avg high / low	20° / 12°	24° / 15°
Rainfall	71 mm	85 mm
Rainy days	10	7
Humidity	78%	75%
Air quality (AQI)	41	44

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

Mackinac Island vs Milwaukee in September — FAQ

Is September better in Mackinac Island or Milwaukee?: Milwaukee is the better pick in September — 90 vs 82 on SeasonMap's comfort score. Milwaukee is warm, rainy, clean air, while Mackinac Island is nice, a little rain, clean air.
What is the weather like in Mackinac Island vs Milwaukee in September?: In September, Mackinac Island averages 20°C high / 12°C low with about 71 mm of rain; Milwaukee averages 24°C high / 15°C low with about 85 mm.