Sleeping Bear Dunes National Lakeshore in September
In September, Sleeping Bear Dunes National Lakeshore averages a high of 69°F and a low of 52°F, with 3.5 inches of precipitation (rain plus melted snow). About 156,000 people visit, the 4th busiest of 12 (moderate). Days are 12 hours 28 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 69° / 52°F
- Precipitation
- 3.5in
- Snow
- 0in
- Daylight
- 12h 28m
- Visitors
- 156,000
- Crowds
- Moderate
Best months for weather and crowds instead: July (very busy) and August (very busy).
Weather 1991–2020 averages at Northport 2W, MI, 17.9 miles from the park's center, 746 ft. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in September
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Isle Royale National Park | 65° / 44° | Moderate | Mild, wet |
| Indiana Dunes National Park | 74° / 56° | Moderate | Mild, wet |
| Cuyahoga Valley National Park | 74° / 52° | Busy | Mild, wet |
| Voyageurs National Park | 66° / 42° | Moderate | Mild, wet |
| Gateway Arch National Park | 81° / 57° | Moderate | Hot |
Closures, reservations and alerts: Sleeping Bear Dunes National Lakeshore on nps.gov
All twelve months at Sleeping Bear Dunes National Lakeshore · National parks to visit in September