Come witness summer unravel into fall during September in Door County. The days are still a bit warm while the nights are getting cooler. After Labor Day weekend, the crowds of peak season start to wane, creating a vibe that’s more relaxed and easygoing. Many will be planning their trips to see the foliage of the area. If that’s true of you, September is a great time of year to have a weekend getaway or spend a week admiring the outdoor wonders of Door County.

What’s the Weather Like?
The weather this time of year is dreamy for just about any outdoor activity. Daytime highs hover in the upper 60s to low 70s. The mornings are cool and fresh, while evening temps dip into the 50s.
When visiting Door County in September, layering is your friend. Pack easy clothes that you can layer for all temperatures. Short sleeves will keep you cool during the day, while sweaters and light jackets are necessary for cooler nights spent by the lake or firepit. A water-repellant jacket isn’t a bad idea for spontaneous fall showers that may roll in. Don’t forget to pack comfortable walking shoes so you can explore hiking trails, local markets, and festivals happening in Door County this September.
Things to Do in Door County This September
September festivities in Door County start off with AutumnFest and the Classic Auto Show in Baileys Harbor. This festival happens on September 13 and features an impressive lineup of classic cars, arts and crafts vendors, food and live music in the park!
Just a few days later, book lovers and writers will be gathering on Washington Island for the 13th Annual Washington Island Literary Festival, running September 18–21. If you’re a lover of all things literature, you won’t want to miss this event! Noteworthy authors and passionate readers gather for days of workshops, readings and book discussions in this beautiful area. Attending this festival in Door County will leave you feeling inspired as you celebrate the art of storytelling. Taking the ferry to the island is part of the experience!
Then, on September 20, the Harvest Fest & Street Art Auction takes over downtown Sturgeon Bay. This event marks the beginning of fall in Door County. Amazing art and food are lined up along the streets. Celebrate the harvest ingathering with live music, family friendly fun, and the street auction where uniquely decorated chairs and benches go to the highest bidder. It’s a joyful and exciting festival that shows the heart of this Door County community and welcomes in the harvest season.

September at The Ashbrooke
When your travels bring you to Door County in September, why not treat yourself to a luxury stay at The Ashbrooke? This adult-only hotel features beautiful rooms and suites that keep you central to these amazing events in Door County and much more. Toast to autumn with a glass of wine by the firepit. Soak your cares away in the hot tub. The Ashbrooke is where you’ll find prime accommodations in Door County. Slow down and savor each moment of September in Door County by reserving your stay at The Ashbrooke Hotel today.