No. 34 · Hokkaido
Hiraiso Onsen
Hiraiso Onsen ranked No. 34 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 Hiraiso Onsen
Facility-level figures; blank town-wide averages are not inferred.
GINRINSOU facility data; the listed spring is Hiraiso Onsen’s second source, not a general Otaru-area average.
- Source temperature
- 51.3°C
- pH
- 7.3
| Facility | Spring | Source data | Supply | Bath type |
|---|---|---|---|---|
| GINRINSOU | Sodium sulfate and chloride spring | Source temperature: 51.3°C pH: 7.3 | Artesian single source; drilled and lifted with a motor pump. The source page does not specify the supply method for each bath. | Large public indoor bath, open-air bath, and private baths in specified guest rooms. |
Destination comparison
What this onsen town offers
History
86/100Spring character
83/100Town culture
45/100Seasonal scenery
96/100Access
68/100Local history
How the town developed
Four seasons
Seasonal conditions and travel rhythm
Plan your stay
Hiraiso 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.
Nearby destinations
Other places in the same prefecture in the published ranking.
Official sources
