Detroit
September
Weather in Detroit for September 2025
Your guide to Detroit weather in September - trends and predictions
In general, the average temperature in Detroit at the beginning of September is 27.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22 °F by the end of September.
The climate of Detroit in September is notably wet, with an average of 12 rainy days.
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18
Dry days
12
Rainy days
0
Snow days
25°/16°
Temperatures
14 km/h
Avg max wind
68 %
Avg humidity
Detroit in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  25° | 2 26° | 3  31° | 4  31° | 5  32° | 6  26° | 7 23° |
| 8 21° | 9 26° | 10 26° | 11 27° | 12  25° | 13  24° | 14 25° |
| 15 27° | 16 27° | 17 25° | 18 23° | 19 24° | 20 26° | 21 28° |
| 22 26° | 23 22° | 24 23° | 25  23° | 26 24° | 27 21° | 28  19° |
| 29 22° | 30 22° |
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Temperatures trend during September in Detroit
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Mist | 25° /15° | 0.4 mm | 6 | |
| Sept. 2 | Mist | 26° /14° | 0 mm | 7 | |
| Sept. 3 | Overcast | 31° /17° | 0 mm | 7 | |
| Sept. 4 | Partly cloudy | 31° /18° | 0 mm | 8 | |
| Sept. 5 | Thundery outbreaks possible | 32° /20° | 0 mm | 7 | |
| Sept. 6 | Light rain shower | 26° /17° | 4.7 mm | 6 | |
| Sept. 7 | Light rain shower | 23° /15° | 2.1 mm | 5 | |
| Sept. 8 | Overcast | 21° /11° | 0 mm | 6 | |
| Sept. 9 | Partly cloudy | 26° /13° | 0 mm | 7 | |
| Sept. 10 | Overcast | 26° /16° | 0 mm | 7 | |
| Sept. 11 | Mist | 27° /15° | 0.7 mm | 6 | |
| Sept. 12 | Moderate or heavy rain shower | 25° /16° | 3.6 mm | 7 | |
| Sept. 13 | Cloudy | 24° /15° | 0 mm | 6 | |
| Sept. 14 | Cloudy | 25° /15° | 0 mm | 6 | |
| Sept. 15 | Cloudy | 27° /16° | 0 mm | 6 | |
| Sept. 16 | Mist | 27° /15° | 0.1 mm | 7 | |
| Sept. 17 | Overcast | 25° /15° | 0.9 mm | 6 | |
| Sept. 18 | Light rain shower | 23° /15° | 0.4 mm | 6 | |
| Sept. 19 | Mist | 24° /16° | 0 mm | 6 | |
| Sept. 20 | Thundery outbreaks possible | 26° /17° | 1.3 mm | 6 | |
| Sept. 21 | Cloudy | 28° /18° | 0 mm | 7 | |
| Sept. 22 | Thundery outbreaks possible | 26° /18° | 6.2 mm | 6 | |
| Sept. 23 | Mist | 22° /15° | 5.8 mm | 5 | |
| Sept. 24 | Cloudy | 23° /15° | 0 mm | 5 | |
| Sept. 25 | Light rain | 23° /17° | 1.3 mm | 5 | |
| Sept. 26 | Light rain shower | 24° /15° | 0.3 mm | 6 | |
| Sept. 27 | Light rain shower | 21° /14° | 1.2 mm | 5 | |
| Sept. 28 | Moderate or heavy rain with thunder | 19° /16° | 8.6 mm | 4 | |
| Sept. 29 | Fog | 22° /16° | 0.2 mm | 5 | |
| Sept. 30 | Mist | 22° /16° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Detroit in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Detroit forecast closer to your planned date for the most up-to-date weather information.
Detroit in September - FAQ
What are the expected maximum and minimum temperatures in Detroit during September?
During September, expect a variety of temperatures with highs around 25° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Detroit during September?
In September, Detroit can expect light to moderate rainfall, totaling 43.4 mm across approximately 12 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Detroit during September?
The average wind speed in Detroit during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Detroit
Explore the daily rainfall trends and prepare for Detroits September weather 💧
UV exposure in Detroit during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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