Lake Michigan (MI)
September
Weather in Lake Michigan, Michigan for September 2027
Your guide to Lake Michigan weather in September - trends and predictions
In general, the average temperature in Lake Michigan at the beginning of September is 21.1 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 18.9 °C by the end of September.
Lake Michigan experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 262 mm.
Is September a good time to visit Lake Michigan? check out the best time to travel to Lake Michigan page.
✨ Is September a good time to visit Lake Michigan? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
22
Dry days
8
Rainy days
0
Snow days
21°/15°
Temperatures
22 km/h
Avg max wind
75 %
Avg humidity
Lake Michigan Weather September
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Temperatures trend during September in Lake Michigan
See the weather trend as well as the moving average line
September weather in Lake Michigan day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Overcast | 23° /16° | 0 mm | 5 | |
| Sept. 2 |  Light rain | 21° /15° | 3 mm | 3 | |
| Sept. 3 |  Heavy rain | 22° /15° | 55.2 mm | 5 | |
| Sept. 4 | Heavy rain | 21° /15° | 92 mm | 4 | |
| Sept. 5 |  Moderate rain | 22° /16° | 10.7 mm | 4 | |
| Sept. 6 |  Patchy rain possible | 20° /13° | 0.9 mm | 5 | |
| Sept. 7 | Light rain | 19° /13° | 3.3 mm | 4 | |
| Sept. 8 | Patchy rain possible | 21° /13° | 2.2 mm | 4 | |
| Sept. 9 | Light rain | 22° /17° | 5 mm | 4 | |
| Sept. 10 | Overcast | 21° /15° | 0 mm | 5 | |
| Sept. 11 |  Cloudy | 21° /14° | 0 mm | 5 | |
| Sept. 12 |  Sunny | 23° /15° | 0 mm | 5 | |
| Sept. 13 | Moderate rain | 23° /17° | 20.7 mm | 5 | |
| Sept. 14 | Sunny | 23° /15° | 0.1 mm | 6 | |
| Sept. 15 | Moderate rain | 24° /16° | 12.9 mm | 4 | |
| Sept. 16 | Sunny | 22° /16° | 0 mm | 4 | |
| Sept. 17 | Overcast | 21° /15° | 0.1 mm | 4 | |
| Sept. 18 |  Partly cloudy | 21° /15° | 0.4 mm | 4 | |
| Sept. 19 | Overcast | 20° /14° | 0.8 mm | 4 | |
| Sept. 20 |  Moderate rain at times | 21° /16° | 6.1 mm | 4 | |
| Sept. 21 | Moderate rain | 19° /14° | 23.2 mm | 3 | |
| Sept. 22 | Moderate or heavy rain shower | 19° /14° | 7.6 mm | 3 | |
| Sept. 23 | Light rain | 19° /14° | 7 mm | 5 | |
| Sept. 24 | Moderate or heavy rain shower | 19° /13° | 6.6 mm | 4 | |
| Sept. 25 | Overcast | 18° /15° | 0.9 mm | 4 | |
| Sept. 26 | Overcast | 18° /13° | 0 mm | 4 | |
| Sept. 27 | Sunny | 19° /13° | 0 mm | 5 | |
| Sept. 28 | Sunny | 19° /13° | 0 mm | 4.9 | |
| Sept. 29 | Partly cloudy | 18° /11° | 0 mm | 4.9 | |
| Sept. 30 | Light rain | 20° /15° | 3.2 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Lake Michigan 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 Lake Michigan forecast closer to your planned date for the most up-to-date weather information.
Change Month
Lake Michigan in September - FAQ
What are the expected maximum and minimum temperatures in Lake Michigan during September?
During September, expect a variety of temperatures with highs around 21° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Lake Michigan during September?
Significant rainfall exceeding 262 mm is expected in Lake Michigan during September, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Lake Michigan during September?
The average wind speed in Lake Michigan during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Lake Michigan
Explore the daily rainfall trends and prepare for Lake Michigans September weather 💧
Typically, Lake Michigan has 8 rainy days in September with a total of 262 mm of rainfall.
UV exposure in Lake Michigan during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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