What is the weather like in Detroit vs Indiana Dunes National Park in September?

In September, Detroit averages 25°C high / 16°C low with about 88 mm of rain; Indiana Dunes National Park averages 24°C high / 16°C low with about 73 mm.

Detroit vs Indiana Dunes National Park in September

Detroit is the better pick in September — 90 vs 84 on SeasonMap's comfort score. Detroit is warm, rainy, clean air, while Indiana Dunes National Park is warm, a little rain, clean air.

Detroit vs Indiana Dunes National Park — September climate, side by side

	🇺🇸 Detroit	🇺🇸 Indiana Dunes National Park
Comfort score	90/100 (S)	84/100 (A)
Feels-like high	24°C	25°C
Avg high / low	25° / 16°	24° / 16°
Rainfall	88 mm	73 mm
Rainy days	6	8
Humidity	73%	75%
Air quality (AQI)	45	43

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

Month by month

Detroit vs Indiana Dunes National Park in September — FAQ

Is September better in Detroit or Indiana Dunes National Park?: Detroit is the better pick in September — 90 vs 84 on SeasonMap's comfort score. Detroit is warm, rainy, clean air, while Indiana Dunes National Park is warm, a little rain, clean air.
What is the weather like in Detroit vs Indiana Dunes National Park in September?: In September, Detroit averages 25°C high / 16°C low with about 88 mm of rain; Indiana Dunes National Park averages 24°C high / 16°C low with about 73 mm.