Kunimi Onsen
Semboku, Akita Prefecture, Japan
- Location
- Semboku, Akita Prefecture, Japan
- Water type
- thermal
- Temperature
- 40 °C
- pH
- 7.3
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Balancing
LowHigh
Rich in trace elements — gentle on the skin.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesCalcium
Kunimi Onsen is located in Semboku, Akita Prefecture, Japan. The thermal water reaches around 40°C, used in an indoor bath, an outdoor rotenburo-style bath and a sauna.
Insider tip — Kunimi Onsen lies in Akita Prefecture's mountainous interior, an area renowned for its deep snows, virgin beech forests, and centuries-old onsen traditions. The clear, mildly alkaline thermal water is gentler on the skin than the volcanic springs further south, making it suitable for long, meditative soaks. The surrounding Tohoku landscape transforms dramatically across seasons, from dense summer greenery to heavy winter snowpack that isolates the valley for months. This is rural Japan at its most authentic, where the rhythm of bathing follows the agricultural calendar.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).