What's on in Seoul in September 2026
Festivals, pop-ups, free events and deals in Seoul in September 2026, from our guides. Dates are checked against official sources; each line links to the full guide with stations, Korean names and maps.
Events and dates
- SEP 4–NOV 1Seoul Outdoor Library (closes Nov 1, 2026): 3 free reading spots, hours and how to get there
Seoul Plaza · Free, no booking
- SEP 18–NOV 19Step into 40 K-dramas for free at HiKR Ground
HiKR Ground, 4F · Free entry
Seoul guides from September 2026
- TRAVEL TIPOctober's busiest days in Seoul, and how to dodge themENDED
- FREE VIEWHaneul Observatory: a free night view from Seoul City Hall
Seoul City Hall main building, 8F–9F · Free, no booking