Ask a longtime Door County visitor when their favorite time of year is and many, if not most. will say September. The summer crowds thin after Labor Day, the lodging rates soften, parking in the village centers becomes effortless again, and the county itself seems to exhale.
The days are still warm enough for a beach afternoon or a kayak on the bay, the evenings cool to the kind of temperature that makes a fire pit feel exactly right, and the markets make the shift from cherries to apples.
The fall color hasn’t peaked yet, but the first hints are popping up along the bluffs by mid-month, and the harvest festivals that anchor the September calendar give the whole month a festive, community-rooted energy that feels completely different from the summer rush.
September is also when Door County is most fully itself. The people who are here in September are not first-timers following a crowd. They know what they came for. And what they came for is one of the finest shoulder seasons of any destination in the Midwest, at a fraction of the cost and difficulty of the summer months.
Table of Contents
- Sister Bay Marina Fest: September 5-6
- Baileys Harbor Autumnfest: September 12
- Sturgeon Bay Harvest Fest: September 18-19
- Theater: Peninsula Players and Northern Sky
- Fall Color and Scenic Drives
- Apple Season and the Farm Markets
- Outdoor Adventures in September
- Lighthouses
- Wineries and Craft Beer
- Where to Eat in September
- The Fish Boil
- Where to Stay
- Planning Tips for September 2026
- More Door County Guides Worth Reading
Sister Bay Marina Fest: September 5-6
Marina Fest in Sister Bay on September 5 and 6 is the unofficial start of the Door County autumn season and one of the most enjoyable community celebrations on the calendar. The festival runs both days at the Sister Bay Marina with live music, a boat parade on the bay, children’s activities, food and beverage vendors, and the kind of festive waterfront energy that Sister Bay does better than anyone.
It is the last major summer-scale celebration before the county shifts into fall festival mode, and there is a particular warmth to it that comes from knowing it marks a transition. The summer regulars are here for one last weekend. The fall visitors are getting ready for their trips. For a day or two, the village feels like it belongs entirely to the people who love it most.
Marina Fest is free to attend and the waterfront location at the Sister Bay Marina makes it one of the most scenic festival settings in the county. For everything else Sister Bay has to offer beyond Marina Fest, see our complete Sister Bay guide.
Baileys Harbor Autumnfest: September 12
Baileys Harbor Autumnfest, held September 12, is one of the most enjoyable and distinctive fall festivals in Door County, built around the Pin Ups and Pistons classic car and motorcycle show that runs along County Road F at Kendall Park and Town Hall.
The combination of gleaming vintage vehicles and classic-style models creates a visual atmosphere unlike any other festival in the county. The Hey Hey 5K run, held in the morning at Door County Brewing Co., is a popular opener for runners who want to earn their Autumnfest experience before the food vendors and music kick in.
Arts and crafts vendors run from 9 a.m. to 4 p.m. Live music fills Kendall Park from 11 a.m. to 3 p.m. Awards for the car and motorcycle show are presented at 3 p.m.
Check the Baileys Harbor guide and local event listings for the confirmed 2026 date before planning your visit.
Sturgeon Bay Harvest Fest: September 18-19
Harvest Fest on September 18 and 19 in downtown Sturgeon Bay is one of the finest fall festivals in the county, running along Third Avenue with a program that manages to feel both festive and genuinely community-rooted. The Old Bolts Classic Car Show is the visual centerpiece, with gleaming classics and restored vehicles parked along the avenue and filling Martin Park throughout the day.
The craft fair, food vendors, and downtown shopping specials give the festival substance beyond the car show. Live music runs throughout. The stein-holding contest brings an Oktoberfest dimension to a distinctly Wisconsin fall celebration.
The Bass Around the Bay street art auction at Martin Park is one of the most distinctive elements of Harvest Fest and one of the most overlooked. Throughout the summer, local artists painted and decorated a collection of sculptural bass that were displayed on city streets across both sides of downtown. Harvest Fest is their final public display before the online auction closes, and the opportunity to walk among the installations and speak with the artists before bidding closes gives the festival an arts and culture dimension that extends well beyond the classic cars and food trucks.
For more on Sturgeon Bay year-round, see our Sturgeon Bay guide.
Theater: Peninsula Players and Northern Sky
September is one of the finest months for theater in Door County, with both companies running strong programming into the fall and the cooler temperatures making the outdoor and indoor venues genuinely comfortable in a way that peak summer heat sometimes does not allow.
Peninsula Players Theatre runs Tuesday through Sunday through October 18, 2026, with Moon Over Buffalo closing September 6 and Murder Girl opening September 9. Murder Girl is one of the most anticipated productions of the 2026 season and arrives just as the summer crowds thin, which means September is actually one of the easier months to secure good seats for a Saturday evening performance.
The theater’s wooded waterfront campus between Fish Creek and Egg Harbor takes on a different character in September, with the trees beginning their turn and the pre-show bonfire making for a perfect fall evening.
Book at peninsulaplayers.com or call (920) 868-3287.
Northern Sky Theater transitions from its summer outdoor amphitheater season in Peninsula State Park to the indoor Gould Theater in Fish Creek for fall programming.
The intimate indoor venue is especially well suited for a cool September evening and gives the fall season a different theatrical character from the summer shows under the trees.
Check the current fall schedule at northernskytheater.com.
Fall Color and Scenic Drives
Door County’s fall foliage typically peaks in mid-October, but September is when the first traces of color begin appearing along the backroads and bluffs, and the combination of those early hints with the green that still dominates creates a landscape that is beautiful in a more subtle way than the full peak.
The limestone escarpment above Green Bay, visible from the Eagle Trail in Peninsula State Park and from the Ellison Bluff State Natural Area, is particularly striking in this transitional period. Highway 57 along the Lake Michigan side from Baileys Harbor through Jacksonport is one of the finest fall drives in the county, with the lake visible through the thinning forest and the orchards heavy with late-season apples.
The Door County color typically comes about a week behind the inland Wisconsin peak given the moderating influence of the water on both sides of the county. Early to mid-October is when the most significant color arrives, but a late September visit will catch the orchards at their most productive and the first color on the bluffs in what is genuinely one of the finest times of year to be here.
Apple Season and the Farm Markets
September is apple season in Door County, and the markets that spent the summer overflowing with tart cherries shift their focus to the apple harvest.
Seaquist Orchards north of Sister Bay has approximately 1,000 acres of orchard and is the largest apple operation in the county, with its market stocked through the harvest with fresh apples, apple cider, apple jams, and orchard products.
Wood Orchard Market in Egg Harbor shifts from cherry products to apple varieties through September and into October, with fresh-pressed cider joining the farm market staples.
The Sturgeon Bay Farmers Market continues Saturdays from 8 a.m. to noon through the fall, with the September markets typically the most abundantly stocked of the season.
The apple harvest also means the wineries and cider producers are at their most active. Island Orchard Cider in Ellison Bay produces its hard cider from locally grown apples, and the September harvest is when the connection between the orchards and the glass is most direct and most worth tasting.
The full Door County wine trail is covered in our Door County wineries guide.
Outdoor Adventures in September
September is one of the finest outdoor months in Door County. The summer heat has broken, the trails are less crowded than they were in July and August, and the combination of comfortable temperatures and early fall scenery makes hiking and cycling particularly rewarding.
Peninsula State Park in Fish Creek is at its most accessible in September. The Eagle Trail along the limestone blufftops, Eagle Tower with its views 253 feet above Green Bay, and the paved bike trail through the park all feel different and distinctly better with fewer visitors and the first hints of fall color in the canopy. Bike rentals are available from Nor Door Sport and Cyclery outside the park entrance. The golf course at Peninsula State Park Golf Course runs through the fall season with September offering some of the finest playing conditions of the year. A Wisconsin State Park vehicle sticker is required at $28 for Wisconsin plates and $50 for out-of-state.
Potawatomi State Park in Sturgeon Bay is in peak season for mountain biking through September, with the off-road trails open through October 31 and the fall color beginning to build through the forest. The restored observation tower delivers panoramic views 225 feet above Green Bay that are particularly striking as the leaves begin to turn.
Newport State Park at the northern tip of the county, Wisconsin’s only designated wilderness state park and a certified International Dark Sky Park, is one of the finest September hiking destinations in the state, with 11 miles of Lake Michigan shoreline and a dark sky quality that makes it exceptional for stargazing as the nights grow longer.
For kayaking and water adventures in September, see our complete Door County kayaking guide.
Lighthouses
September is one of the best months for lighthouse touring in Door County, with every station still accessible and the Lighthouse Passport Days event running on select weekends through October.
Cana Island Lighthouse near Baileys Harbor remains open daily through October with tower climbs available.
Eagle Bluff Lighthouse inside Peninsula State Park offers guided tours daily through mid-October from 11 a.m. to 3 p.m.
The Lighthouse Passport Days event organized by the Door County Maritime Museum opens all 11 county beacons on select fall weekends, including normally inaccessible stations like Sherwood Point and Chambers Island.
Our complete Door County lighthouses guide covers all 11 stations and Passport Days dates.
Wineries and Craft Beer
The Door County wine trail is running through the harvest season with most wineries open into October.
Lautenbach’s Orchard Country Winery and Market in Fish Creek has the orchards at their most productive through September, with apple cider joining the cherry wine lineup and the farm market side well stocked with fall products.
Door County Brewing Co. in Baileys Harbor hosts the Hey Hey 5K start for Autumnfest and its taproom in the converted granary is one of the most enjoyable fall afternoon destinations in the county.
Shipwrecked Brew Pub in Egg Harbor has the second-floor bay view deck available into fall, making it one of the finest spots for watching the seasonal transition over a cold pint.
See our complete Door County wineries guide for the full trail.
Where to Eat in September
Most Door County restaurants stay open through September, and the combination of thinner crowds and full menus makes this one of the easier and more enjoyable months to dine well without the summer waits. Reservations are still recommended for the most popular spots on weekends, but the urgency is considerably lower than the peak summer months.
CHOP in Sister Bay is open Thursday through Saturday from 4:30 p.m. with hand-cut certified Angus beef and fresh seafood, and the fall menu additions that arrive in September make it worth a visit for returning guests who have been in the summer before.
Trattoria Dal Santo in Sturgeon Bay is open Tuesday through Saturday from 5 p.m. and is as good in September as any other month.
The White Gull Inn in Fish Creek is running its full breakfast and fish boil schedule through the fall.
For the complete dining landscape, see our Door County restaurants guide.
For the best morning meal options across the county, the Door County breakfast guide covers every village.
The Fish Boil
Door County fish boils run through the fall season, and September is one of the finest months to experience them. The dramatic boilover over an outdoor fire, the fresh Lake Michigan whitefish, the red potatoes and onions, and the cherry pie for dessert are all at their best when the evening air is cool enough that the fireball and the heat of the outdoor setting feel genuinely inviting rather than just theatrical.
The White Gull Inn in Fish Creek runs the most celebrated boil in the county through the fall season.
Pelletier’s Restaurant and Fish Boil at Founder’s Square in Fish Creek runs nightly with boilovers at 5, 6, and 7 p.m.
The Old Post Office Restaurant in Ephraim hosts boils Monday through Saturday with Eagle Harbor views that are stunning in the fall light.
Where to Stay
September lodging in Door County is considerably more available and more affordable than the peak summer months, and the shoulder season pricing at many properties makes this one of the best value windows of the entire year.
The harvest festival weekends, particularly Marina Fest on September 5-6 and Harvest Fest on September 18-19, see higher demand and should be booked in advance. Everything else in September is generally more flexible.
For camping, Peninsula State Park‘s 468 family campsites are considerably easier to book in September than in peak summer, and a fall camping weekend in the park is one of the most rewarding Door County experiences available at any time of year. Book at wisconsin.goingtocamp.com.
For resort amenities, The Landmark Resort in Egg Harbor offers 294 suites with bluff views and full resort facilities. Country House Resort in Sister Bay with its 1,100 feet of private Green Bay shoreline is a natural fit for a September waterfront stay.
Door County fills up faster than most people expect, especially through Labor Day. If you have dates in mind, it’s worth checking availablity now.
Check our complete Door County lodging guide or browse Door County properties on VRBO, search rooms across Door County on Expedia, check current availablity on Booking.com, or explore what’s available on Hotels.com.
Planning Tips for September 2026
Do not assume every restaurant is still open. September is when some smaller and more seasonal operations begin to wind down their hours or close for the season. Calling ahead or checking current hours online before making a specific dinner plan is always worth the two minutes it takes, particularly for the northern villages and the Lake Michigan side.
Pack for variable weather. September afternoons in Door County can still reach the mid-70s, but mornings and evenings cool quickly, and a day that starts warm can end with a jacket needed. Layers are the right approach. A light rain jacket is worth packing as September tends to have more variable weather than the drier heart of summer.
Book the harvest festival weekends in advance. Marina Fest on September 5-6 and Harvest Fest on September 18-19 both draw significant crowds and the best lodging in those villages goes quickly for those specific weekends. Everywhere else in September is considerably more flexible and forgiving for last-minute planning.
Check Passport Days dates before you go. If seeing Door County’s lighthouses, including the normally inaccessible stations like Sherwood Point and Chambers Island, is on your list, checking the Lighthouse Passport Days schedule and booking the guided tours in advance is essential. The most popular lighthouse tours fill quickly. For the complete picture of what September and the broader fall season offer, our Door County festivals guide covers every event through October.
More Door County Guides Worth Reading
September is Door County at its most approachable, and these guides will help you plan every dimension of a fall visit.
For the outdoor foundation of any September trip, The Complete Guide to Peninsula State Park covers every trail, campground, beach, tower, lighthouse, and theater experience in Wisconsin’s most visited state park. The fall season there is genuinely worth a dedicated visit. Its companion, the Potawatomi State Park guide, covers the most underrated park in the county with the same depth.
For the lighthouse experiences that are at their most complete in September and October, the Door County Lighthouses guide covers all 11 beacons and the Passport Days events that open the most remote ones. For the harvest culture that defines Door County’s September character, the Door County wineries guide covers the full trail and the orchard stops worth building a day around.
For the dining that makes a fall visit memorable, the Door County Fish Boil guide covers the full tradition and every operator running through the season. And for planning where to stay across every village and every price range, the Where to Stay in Door County guide is the most complete lodging reference available.
