Uzumasa, Ukyo Ward, Kyoto City
Uzumasa Onsen
A neighbourhood bathhouse known for groundwater from the Atago foothills, heated over a wood-fired boiler. Sunday morning hours and a mist sauna make it a useful local stop, though a legally classified natural hot spring has not been confirmed.
Check before bathing
- Opening hours
- Usually 15:00–24:00, with morning bathing on Sundays from 07:00 to 11:00. Closed on the first and third Wednesdays of the month.
- Tattoo policy
- The current directory information reviewed does not confirm a tattoo policy. Ask the bath before visiting.
Spring & water temperature
- Spring-source temperature
- Not published.
- Bathing temperature
- Not published.
- Spring source
- Groundwater from the Oku-Saga and Mount Atago area, according to the current association page.
- Spring classification
- Groundwater is confirmed; a legally classified natural hot spring and current spring analysis are not confirmed.
- pH
- Not published.
- Flow rate
- Not published.
- Water handling
- The bath pumps groundwater and heats it slowly over a wood-fired boiler. The cold bath also uses the same groundwater. The water's origin does not by itself establish natural-spring status.
Groundwater use and wood-fired heating are confirmed; detailed pool-treatment conditions are not published.
How to read a bath profile
Spring-source temperature and actual bathing temperature are kept separate. Each score is shown independently for comparison rather than collapsed into one overall score.
