murmurOnahama Suwa Shrine Grand Festival
Iwaki City · Onahama Suwa Shrine and central Onahama
Dates and details can change. Always check the official website before you go.
Iwaki Tourism and Town Planning Bureau · Last checked: Oct 11, 2026
Dates
Dates confirmed with official sources
- 2026
- May 2–3, 2026 （Ended） Eve: purification rite at 19:00. Main day: ceremony from 8:00, return to the shrine at 16:00
- 2027
- Dates have not been announced yet. Please check the official website.
- Usual timing
- Usually early May
- How the date is set
- Announced each year Usually in early May
- Venue
- Onahama Suwa Shrine and central Onahama
- City
- Iwaki City, Fukushima
About
Each May, Onahama Suwa Shrine in Iwaki carries its portable shrines through the port district. On the eve, men in loincloths plunge into the shrine's purification pond and pray for a safe festival. On the main day, the Senkan mikoshi, weighing about 2 tonnes, and a second large mikoshi tour Onahama, and lucky food offerings and white folding fans are tossed from above. Fan-throwing and a roadside rite are also held at the Iwaki LaLaMew roadside station and Aquamarine Park. In 2026 the eve fell on May 2 and the main festival on May 3.
Sources
- OfficialIwaki Tourism and Town Planning Bureau kankou-iwaki.or.jp
- OfficialFukushima Prefectural Tourism & Products Association (Fukushima Travel) www.tif.ne.jp
Last checked: Oct 11, 2026. Event information is based on official announcements, but changes may not always be reflected here. Please check each official website for accurate details.
Other events this month
On the day, see what locals are murmuring on the murmur map
murmur is an app that shows short, anonymous posts on a map, right where they were written. On festival day, open the map around the venue and see what people nearby are saying.