Washington event calendar
Events in Washington in September 2026
For Washington in September 2026, check public holidays, seasonal conditions, and venue hours before locking the plan. Tripsapien turns the event list into a trip you can validate by date.
Dated picks
Event list
No dated events are in the current feed yet. Use the full guide to validate hours, closures, and neighborhoods for the places you are planning.
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).