Akiu Onsen, Sendai, Miyagi
Akiu Onsen Public Bath
A very affordable, no-frills indoor public bath for a simple soak in Akiu Onsen. It has no outdoor or private bath, and closes on the fourth Wednesday of each month.
Check before bathing
- Opening hours
- 07:30–20:00. Closed on the fourth Wednesday of each month. Adult admission ¥300. The current visitor-centre PDF is the basis for these hours; older search snippets showing a later close are stale.
Spring & water temperature
- Spring-source temperature
- 52.2°C in a recent secondary transcription of the on-site analysis notice.
- Bathing temperature
- No fixed year-round bath temperature published; a recent on-site record of about 42°C is not a fixed specification.
- Spring source
- Akiu Onsen No. 2 and New No. 4 mixed source.
- Spring classification
- Sodium-chloride spring; low salinity, weakly alkaline and high-temperature spring.
- pH
- 8.0 in the recent secondary transcription.
- Flow rate
- Not published for this facility.
- Water handling
- A recent secondary record of the on-site analysis notice describes the indoor public bath as source-flowing, undiluted, unheated, non-circulating and without disinfection. The current first-party day-use list does not publish a full treatment table, so this description is limited to that on-site record.
How to read a bath profile
Spring-source temperature and actual bathing temperature are kept separate. Each score is shown independently for comparison rather than collapsed into one overall score.
