No. 79 · Hyogo
Sumoto Onsen
Sumoto Onsen ranked No. 79 in the published 2025 Japan hot-spring destination list. Check bathing options, access and stay details before planning your visit.
Spring information
Water and bathing details for Sumoto Onsen
Facility-level figures; blank town-wide averages are not inferred.
Sumoto Onsen has facility-specific and shared-source information. Awakan explicitly identifies its baths with Sumoto Onsen Uruoi-no-yu and publishes the source test; Yumesenkei describes two distinct sources on its own grounds, without numeric analysis on the cited English page.
| Facility | Spring | Source data | Supply | Bath type |
|---|---|---|---|---|
| Awakan | Alkaline simple spring (Sumoto Onsen Uruoi-no-yu). | Source temperature: 47.0°C (source test dated 2017-06-05) pH: 8.63 (source test dated 2017-06-05) | The operator says both indoor and outdoor baths use Uruoi-no-yu. Its disclosure states water is added to maintain the storage-tank level, heated to maintain temperature, circulated and filtered, and disinfected with solid chlorine. | Two gender-swapping bathing areas: Uzushio public bath with indoor and rock outdoor baths; Panorama public bath with hinoki outdoor bath, jet and relaxation baths, plus a sauna on the second floor. |
| Awaji Yumesenkei | Two on-site sources: Sumoto Onsen and Komoe Onsen; the operator says Komoe is slightly cloudy. Facility-specific spring classification is Not published on cited pages. | Source temperature: Not published on cited pages pH: Not published on cited pages | Both natural springs originate on the hotel grounds; source-to-tub dilution, heating and circulation details are Not published on cited pages. | Tenkyu-no-Shizuku has a panoramic indoor bath, seaside open-air bath and reservable private bath; group-hotel access includes Hotel New Awaji's Tanada-no-yu and Kuniumi-no-yu. |
Destination comparison
What this onsen town offers
History
72/100Spring character
72/100Town culture
73/100Seasonal scenery
74/100Access
69/100Local history
How the town developed
Four seasons
Seasonal conditions and travel rhythm
Plan your stay
Sumoto Onsen: day trip or overnight?
Compare travel time, bath access and the time you want to spend in town.
Day trip
Check the first and last transport connections, then confirm which baths accept day visitors and when they stop admitting guests.
One-night stay
Compare the ryokan’s bath access with public day-use options and the journey back to your next stop.
Stay plus a day bath
Choose one bath experience for your stay and use a day facility for a different source or setting, where the published details support it.
Asama Onsen Day Trip: Hot Plaza Asama, Senki no Yu and Biwanoyu ComparedNearby destinations
Other places in the same prefecture in the published ranking.
Official sources
