Events in Washington in September 2027
Washington has 2 sourced events in September 2027. Compare dates, venues, and ticket sources below, then build the rest of your trip around the events you choose.
The Washington calendar for September 2027 leads with these:
- Iliza Shlesinger: Free Nights & WeekendsSep 11DAR Constitution Hall · Source: Ticketmaster
- Iliza ShlesingerSep 11DAR Constitution Hall · Source: SeatGeek
By TripSapien · Updated November 1, 2026
Going to Washington in September?
Add your dates and we'll build the rest of your trip around these events — every place checked for closures and booking needs.
Planning leads
Early leads on events still lining up. Exact dates and details firm up closer to your trip.
- Dates unconfirmed
Library of Congress National Book Festival
Sponsored by the Library of Congress, this festival celebrates books, authors, and reading.
Planning lead · details firm up closer in · Source: seasonal calendar
Holidays, observances & long weekends
Holiday and observance schedules can affect services and venue hours; confirm each place directly.
- Labour Day · publicSep 6
- Long weekendSep 4–Sep 6
Holiday data: date-holidays (ISC/CC-BY-3.0).
Seasonal notes
- National Mall — seasonal note: The National Symphony Orchestra presents each year its Labor Day Capitol Concert on the west lawn of the United States Capitol during the evening of the Sunday before Labor Day (the first Monday of September).
Ready to plan Washington?
Turn these September events into a full Washington plan, every place checked for closures, limited hours, and booking needs on your dates.