Seasons and nature · Kanto
Showa Kinen Park Cosmos Festival
国営昭和記念公園 コスモスまつり
Over four million cosmos across four flower fields in Tokyo's largest national park.
Expected window
Expected window. The organiser has not published dates for this edition yet. This window comes from the previous edition or tradition, and the dates can move. Confirm at the official source before booking travel around it.
- Dates
- Sat 11 Sep to Sun 24 Oct 2027
- Date status
- Expected window, from the previous edition or tradition. Not yet confirmed.
- Venue
- National Showa Memorial Park (Showa Kinen Park)
- City
- Tachikawa
- Prefecture
- Tokyo
- Region
- Kanto
- Category
- Seasons and nature
- When it runs
- Season follows bloom or growth; dates announced close to the season, previous window in the record
- Checked
- Fri 23 Oct 2026 against the official source
About this event
The Cosmos Festival fills Showa Kinen Park's flower hill and Harappa fields with more than four million cosmos, including yellow Lemon Bright and pink-and-white Sensation fields that peak in succession. The park's official event page gives the 2026 festival as 12 September to 25 October; the 2027 edition is expected on the same mid-September to late-October frame.
Booking
Booked around the event: hotels, passes, transfers and eSIM. Booking links for this event are added after the product checks pass.
Official source: https://www.showakinen-koen.jp/event/56303/. Dates checked Fri 23 Oct 2026.