Grand Traverse County (Traverse City)
September
Weather in Grand Traverse County for September 2025
Your guide to Grand Traverse County weather in September - trends and predictions
In general, the average temperature in Grand Traverse County at the beginning of September is 21.9 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 22.1 °F by the end of September.
Grand Traverse County experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 19.7 mm.
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Temperatures
Rain 🌧️
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24
Dry days
6
Rainy days
0
Snow days
25°/13°
Temperatures
16 km/h
Avg max wind
65 %
Avg humidity
Grand Traverse County in September average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  20° | 2  21° | 3 25° | 4 27° | 5 29° | 6 16° | |
| 7 15° | 8  21° | 9 23° | 10 27° | 11 29° | 12 31° | 13 30° |
| 14 30° | 15 31° | 16 30° | 17  27° | 18  28° | 19 28° | 20  26° |
| 21 25° | 22 20° | 23 20° | 24 21° | 25 21° | 26 23° | 27 26° |
| 28 24° | 29 19° | 30 21° |
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Temperatures trend during September in Grand Traverse County
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 | Patchy rain possible | 20° /14° | 0.4 mm | 5 | |
| Sept. 2 | Sunny | 21° /11° | 0 mm | 6 | |
| Sept. 3 | Sunny | 25° /11° | 0 mm | 7 | |
| Sept. 4 | Sunny | 27° /12° | 0 mm | 7 | |
| Sept. 5 | Sunny | 29° /13° | 0.5 mm | 7 | |
| Sept. 6 | Light rain shower | 16° /10° | 7.6 mm | 4 | |
| Sept. 7 | Patchy rain possible | 15° /9° | 0.5 mm | 4 | |
| Sept. 8 | Partly cloudy | 21° /7° | 0 mm | 6 | |
| Sept. 9 | Sunny | 23° /14° | 0 mm | 6 | |
| Sept. 10 | Sunny | 27° /11° | 0 mm | 7 | |
| Sept. 11 | Patchy rain possible | 29° /17° | 0.1 mm | 6 | |
| Sept. 12 | Sunny | 31° /16° | 0 mm | 8 | |
| Sept. 13 | Sunny | 30° /16° | 0 mm | 7 | |
| Sept. 14 | Partly cloudy | 30° /15° | 0 mm | 8 | |
| Sept. 15 | Sunny | 31° /17° | 0 mm | 8 | |
| Sept. 16 | Sunny | 30° /16° | 0 mm | 8 | |
| Sept. 17 | Overcast | 27° /16° | 0 mm | 6 | |
| Sept. 18 | Mist | 28° /13° | 0 mm | 6 | |
| Sept. 19 | Partly cloudy | 28° /16° | 0 mm | 7 | |
| Sept. 20 | Moderate rain at times | 26° /17° | 6.8 mm | 6 | |
| Sept. 21 | Fog | 25° /16° | 0 mm | 6 | |
| Sept. 22 | Light rain shower | 20° /14° | 3.9 mm | 5 | |
| Sept. 23 | Sunny | 20° /12° | 0 mm | 6 | |
| Sept. 24 | Overcast | 21° /8° | 0 mm | 5 | |
| Sept. 25 | Fog | 21° /14° | 0 mm | 5 | |
| Sept. 26 | Fog | 23° /11° | 0 mm | 5 | |
| Sept. 27 | Partly cloudy | 26° /10° | 0 mm | 7 | |
| Sept. 28 | Mist | 24° /9° | 0 mm | 5 | |
| Sept. 29 | Fog | 19° /10° | 0 mm | 4 | |
| Sept. 30 | Fog | 21° /9° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Grand Traverse County 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 Grand Traverse County forecast closer to your planned date for the most up-to-date weather information.
Grand Traverse County in September - FAQ
What are the expected maximum and minimum temperatures in Grand Traverse County during September?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Grand Traverse County during September?
Expect minimal rainfall in Grand Traverse County during September, with a total of 19.7 mm over approximately 6 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Grand Traverse County during September?
The average wind speed in Grand Traverse County during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Grand Traverse County
Explore the daily rainfall trends and prepare for Grand Traverse Countys September weather 💧
UV exposure in Grand Traverse County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Grand Traverse County?Get accurate weather forecasts for Grand Traverse County, located at latitude 44.763 and longitude -85.621. Stay updated with localized weather information tailored for Grand Traverse County.
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