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

In September, Mackinac Island averages 20°C high / 12°C low with about 71 mm of rain; Madison averages 24°C high / 12°C low with about 114 mm.

Mackinac Island vs Madison in September

Madison is the better pick in September — 89 vs 82 on SeasonMap's comfort score. Madison is warm, rainy, clean air, while Mackinac Island is nice, a little rain, clean air.

Mackinac Island vs Madison — September climate, side by side

	🇺🇸 Mackinac Island	🇺🇸 Madison
Comfort score	82/100 (A)	89/100 (A)
Feels-like high	20°C	24°C
Avg high / low	20° / 12°	24° / 12°
Rainfall	71 mm	114 mm
Rainy days	10	9
Humidity	78%	73%
Air quality (AQI)	41	42

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

Month by month

Mackinac Island vs Madison in September — FAQ

Is September better in Mackinac Island or Madison?: Madison is the better pick in September — 89 vs 82 on SeasonMap's comfort score. Madison is warm, rainy, clean air, while Mackinac Island is nice, a little rain, clean air.
What is the weather like in Mackinac Island vs Madison in September?: In September, Mackinac Island averages 20°C high / 12°C low with about 71 mm of rain; Madison averages 24°C high / 12°C low with about 114 mm.