September sits between the seasons, giving a full range of climates and sceneries to see the best of America. The light starts to shift, the air settles, and the sites are stress-free. You'll catch the end of summer in some places or the first signs of fall in others. But whatever the vibe, you'll notice event calendars becoming more active (especially during Labor Day weekend) and the ideal conditions to dive into arts, history, shopping, culture, food, and nature.
Whether you're after coastal breezes, mountain drives, glacier tours, quiet trails, or last-chance swims, this list covers the best places to visit in September in the US.
12 Best Places to Visit in September in the US
1. Aspen, Colorado (Cool)
Average temperature: 40°F - 71°F
As summer fades, Aspen transforms into one of the most visually striking destinations to go in September as aspens (the tree the city was named for) give the hillsides a golden glow. While it's technically the off-season and there's no skiing yet, you can bask in fewer crowds, quiet trails, open roads, and easy brunch reservations.
Drive Independence Pass or Castle Creek Road for showstopping foliage, or catch the sunrise over Snowmass during the 50th annual Balloon Festival. Aspen Filmfest also happens this month, screening independent works ahead of the in-demand festival circuit. Daytime temps are crisp, and nighttime can get frosty, so packing layers is recommended. If you're after autumn beauty without chaotic tourism, this Colorado hideaway is hard to beat.
2. Boston, Massachusetts (Mild)
Average temperature: 59°F - 73°F
Known as one of the best US cities to visit in September, Boston blends early fall weather with summer's social energy. Cooler evenings and lighter crowds make it the perfect time to roam the Freedom Trail or catch a game at Fenway Park while the Red Sox close out the season.
On weekends, you can visit the Seaport Summer Market for food trucks and artisanal goods on the waterfront before it closes for the year. September also hosts the Boston Arts Festival, an open-air gallery of live music and local talent. After exploring historic sites like Faneuil Hall or the Old North Church, grab a table in the North End for pasta and cannoli, or head to the harbor for oysters and skyline views.
3. Leavenworth, Washington (Cool)
Average temperature: 75°F - 92°F
There's a little bit of Germany tucked into the Cascades, and you'll find it in Leavenworth, Washington. This small mountain town rebranded in the 1960s as a Bavarian village to draw visitors in with alpine architecture, beer halls, and seasonal festivals.
September is one of the best times to visit, thanks to the Autumn Leaf Festival, a decades-old celebration of fall colors with parades, live music, food vendors, and family-friendly events. It's one of the more charming destinations to go in September if you want comfy weather, mountain drives, and a dose of small-town character. Outside of town, you can explore hiking and biking trails, float the Wenatchee River, or make a scenic two-hour drive back to Seattle.
4. Savannah, Georgia (Warm)
Average temperature: 55°F - 80°F
Savannah may be Georgia's oldest city, but it stays fresh with lively energy and southern charm, especially in September. Much of the city's original design and architecture, dating back to its founding in 1733, are still around to give you a peek at America's past before the Revolutionary War. You can even get a head start on the spooky season by joining one of the city's famed ghost tours that take you down mossy-oaked cobblestone streets.
There's lots of nature, too, like nearby Tybee Island, where late summer weather is great for dolphin sightings. You might also enjoy a leisurely ride down the Savannah River on a sightseeing riverboat cruise. Whatever way you see the city, take time to explore the region's deep roots in jazz during the Savannah Jazz Festival, a celebration of local music with free concerts in Forsyth Park near the end of the month.
5. Lexington, Kentucky (Mild)
Average temperature: 58°F - 78°F
When it comes to places to travel in September, Lexington brings out the best of Kentucky's equestrian nature. Horse lovers flock to the city this time of year for events like the Keeneland Yearling Sale, the English-style 2025 Mustang Classic, as well as polo matches and other races. Beyond the track and arena, horse farm tours offer a slower-paced way to admire these animals up close.
Lexington is also a popular stop along the Kentucky Bourbon Trail, with local distilleries offering tours and tastings. For a change of pace, witness the geological wonders of Red River Gorge, or visit the Shaker Village of Pleasant Hill, where a preserved 19th-century Shaker community offers quiet trails, farm-to-table dining, and a hint of early American life.
6. Juneau, Alaska (Cool)
Average temperature: 55°F - 75°F
Alaska is one of the best states to visit in September because it gives you a window into its wild and wintry terrain while conditions are still relatively mild. The capital, Juneau, is the perfect hub for sightseeing opportunities, as you can take glacier hikes, go whale watching, and pan for gold.
Mendenhall Glacier is a quick drive from downtown, where you can walk the trails or kayak on the lake. Humpback whales are still migrating through local waters, and bear sightings are common on guided excursions into the backcountry. For panoramic views, ride the Mount Roberts Tramway or take to the skies for a flight over the ice fields. Downtown Juneau also has plenty to do with museums, fresh seafood restaurants, and historic landmarks.
7. Sedona, Arizona (Hot & Scenic)
Average temperature: 70°F - 95°F
September turns Sedona into an inviting destination as Arizona's summer heat breaks and nearby red rock trails are prime for hiking. With endless high desert vistas at your disposal, you can plan a Jeep tour through the backcountry or take snapshots of one-of-a-kind natural formations like Cathedral Rock and Devil’s Bridge. If you pack a jacket for the cooler nights, you can also take in long stargazing sessions without light pollution under the dark desert skies.
The month also brings Restaurant Week Sedona, where top spots across town offer special menus. Plus, several ongoing music festivals fill the red rock landscape with live performances of various genres. Sedona also has a strange side that every visitor should see, which is defined by energy vortexes, metaphysical shops, and spiritual landmarks like the Chapel of the Holy Cross.
Related: Arizona (and the Southwest in general) is also a great destination in the spring, when the heat hasn't hit its peak yet. If you're planning ahead, check out these top places to visit in April in the US.
8. Knoxville, Tennessee (Mild)
Average temperature: 65°F - 85°F
Nashville might get much of the spotlight as Tennessee's country music capital, but Knoxville's where much of the story starts. Known as the Cradle of Country Music, this was the early stomping ground for legends like Dolly Parton, Roy Acuff, and Chet Atkins. And today, local shows, open-air concerts, and downtown venues keep the scene alive. And country isn't the only music to enjoy here, as Knoxville is also home to the South's oldest symphony.
September is a great time to visit thanks to mild weather, a very walkable downtown, and a packed events calendar that includes the HoLa Festival celebrating Latin American food, music, and dance. With the exciting shopping of Market Square, live jazz on warm nights, and hilly greenway paths, Knoxville is one of the best places to go in USA in September for a good balance of American culture and nature.
9. Burlington, Vermont (Cool)
Average temperature: 52°F - 68°F
New England is known for its fall colors, and in Burlington, you'll see some of the best, with Vermont's maple trees starting to turn by mid-September. Plus, the lake, the light, and the gentle air make it a solid place to settle in for the season. Get some of the best views by taking a sunset cruise on Lake Champlain, go apple picking for tasty McIntosh and Honeycrisp varieties, or check out the South End Art Hop, a weekend of pop-up shows from local creatives. The food scene leans fresh and local, with cozy cafes and farm-to-table restaurants serving Vermont cheeses, maple-glazed entrees, cider, and seasonal produce.
10. St. Petersburg, Florida (Hot)
Average temperature: 75°F - 89°F
If you're looking for top vacation spots in USA in September, St. Petersburg offers one of Florida's more comfortable options. The summer heat lingers, but humidity drops to make for the best beach days in the area. You can also relax by swimming, dining on the waterfront, and taking sunset walks without battling tough temperatures. When you need shade, explore the flamingo-sprinkled paths of Sunken Gardens or paddle through mangroves at Weedon Island Preserve.
St. Pete is also an art paradise defined by The Dalí Museum's impressive collection of Salvador Dalí's surreal work, mural-lined streets, immersive art shows, and plenty of indie galleries to browse. You'll also find small concert venues and haunted walking tours that keep things interesting while soaking up the Florida sun.
11. Austin, Texas (Hot)
Average temperature: 68°F - 87°F
There’s a shift in the air in Austin, TX, in September when late summer days feel lighter, nights get cooler, and the city settles into a heavier cultural calendar that serves up many things to do. Known as an art and movie hub, this Texas getaway offers outdoor concerts, underground film screenings, and galleries to excite the mind. The food scene is as big and loud as ever, with many options ranging from smoked brisket to taco trucks to Eastern European beer gardens.
Texas' prized football season also kicks off this time of year, so you’ll catch Longhorn pride in action with festive tailgates and packed stadiums. And if you want a break from the city’s buzz, it’s easy to get to nature by kayaking Lady Bird Lake, hiking the Greenbelt, or getting views from Mount Bonnell.
12. Santa Barbara, California (Mild)
Average temperature: 58°F - 77°F
What makes Santa Barbara one of the best places to visit in USA in September? The summer warmth lingers, but the crowds thin for effortless beach days, hikes, and wine tastings without the rush. It's a good time of year to wander the rose gardens near the historic Mission or get panoramic views of red-tile roofs and mountain ridgelines. The Lower State area adds to the coastal charm with tasting rooms and art galleries. Eating is refreshing and filling with several refined spots for local seafood, wood-fired pizza, and natural wines at your disposal.
In September, Santa Barbara serves up indie film screenings, botanical bird walks, and some of the clearest skies of the year. Compared to LA and San Diego, it’s a different kind of SoCal escape that’s smaller, slower, and easy to sink into.
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