20 Best Things To Do in DC with Kids September 2025, According to Mommy Poppins Editors

Back-to-school doesn't mean family fun has to stop! September is packed with fabulous, family-friendly things to do in DC and all month long.
We jump into fall this month, and with the start of September comes harvest fairs, pumpkin festivals, and other fall festivals across our area.
There are also some fun and unique events happening throughout the month, such as the Kensington Train Show, Homecoming at President Lincoln's Cottage, and the Clemyjontri Park Open House. And you won't want to miss two new shows—The Very Hungry Caterpillar at Imagination Stage and Cirque du Soleil: Luzia in Tysons Corner!
We have so many more great events listed below for your family in September, but don't forget to check our family activity calendar every day, as we're always adding more events.
More Things To Do in DC This September With Kids:
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Places featured in this article:
Fairfax City Hall
Under the Big Top, Tysons II
Walter E Washington Convention Center
Dulles Town Center
The Kennedy Center for the Performing Arts
All 8 Wards
St. Andrews Ukranian Orthodox Cathedral
Joint Base Andrews Air Force Base
President Lincoln's Cottage
H Street
Lake Accotink Park
Flying Circus Aerodrome
Harford County Equestrian Center
Downtown Wheaton