Weiss Onsen
Rankoshi, Hokkaido, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Rankoshi, Hokkaido, Japan
- Water type
- sulfurous
- Temperature
- 44 °C
- pH
- 6.5
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Bio-active
LowHigh
Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Weiss Onsen, in Rankoshi on Hokkaido, draws on sulfurous water at 44°C amid the rural landscape of northern Japan, with an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Weiss Onsen lies in the Rankoshi district of Hokkaido south of the Niseko volcanic range, where sulfurous spring water emerges at high temperature from volcanic strata near the surface. The milky white color of the water and its pungent sulfur aroma are the hallmarks of a genuinely volcanic onsen, and guests commonly use the outdoor bath to gaze at the silhouette of Mount Yotei across the valley. The name Weiss — German for white — refers to the characteristic cloudy appearance of the spring. Winter soaks with snowfall drifting onto steaming water are among the quintessential Hokkaido onsen experiences.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 44 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sulfurous water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).