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Yawatahama Onsen

Yawatahama, Ehime (Shikoku), Japan
Yawatahama Onsen
Location
Yawatahama, Ehime (Shikoku), Japan
Water type
bicarbonate
Temperature
40 °C
pH
8

Water profile

Thermicity
Sedative
40 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Restorative
LowHigh

Loaded with major ions — the essential minerals (Ca, Mg).

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesSodiumCalcium

Yawatahama Onsen is a thermal facility in Yawatahama city, Ehime Prefecture on Shikoku Island, a historic fishing port on the Uwa Sea facing the Bungo Channel where siliceous geothermal waters from the Shikoku basement rocks provide a restorative bathing experience in a city celebrated for its mandarin orange production and vibrant morning market culture. The city's onsen tradition is integral to the daily life of Yawatahama's fishing and farming communities, with the local sento public bath serving as a social gathering place in the tradition of Japanese communal thermal culture. The combination of siliceous thermal bathing, abundant fresh seafood from the Uwa Sea, and the scenic coastal landscape of the Sadamisaki Peninsula — Japan's longest and narrowest cape — makes Yawatahama a rewarding destination on the lesser-traveled western coast of Shikoku.

Insider tip — Yawatahama Onsen sits near the fishing port of Yawatahama on Ehime's western Shikoku coast, overlooking Uwa Sea. Bicarbonate-rich thermal waters rise from sedimentary strata beneath the coastal plain. The port town setting means fresh citrus and local seafood are within easy reach after a soak.
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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 bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).