Detroit Weather in September
23.2°C high · 12.5°C low · 90 mm rain · 6.7h sun
Sep is a warm month in Detroit — not peak season, but a good time to avoid crowds.
September at a glance
| Metric | Value |
|---|---|
| Average high | 23.2°C |
| Average low | 12.5°C |
| Rainfall | 90 mm |
| Sunshine | 6.7 hours/day |
| Daylight | 12.3 hours |
What to pack in September
Pack comfortable clothes with a light layer for evenings for Detroit in September.
Detroit weather by month
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Frequently asked questions
What is the weather in Detroit in September?
Highs of 23.2°C and lows of 12.5°C, with about 90 mm of rain and 6.7 hours of sunshine per day.
Is September a good time to visit Detroit?
Sep is a warm month in Detroit — not peak season, but a good time to avoid crowds.
What to do in Detroit · Best time to visit Detroit
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.