No. 38 · Wakayama
Shirahama Onsen
Shirahama Onsen ranked No. 38 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 Shirahama Onsen
Facility-level figures; blank town-wide averages are not inferred.
Named facility records for Shirahama Onsen. Figures marked “Not published” are not treated as town-wide averages.
| Facility | Spring | Source data | Supply | Bath type |
|---|---|---|---|---|
| Saki-no-Yu | Sodium chloride spring, as described by Shirahama Town. The spring supplier publishes a fuller classification; the wording differs, so the two descriptions are kept separate rather than merged. Source: Miyuki spring. | Source temperature: 78.0°C at Miyuki spring; this is the source temperature. pH: 8.2, from the Nanki-Shirahama Tourism Association's Miyuki spring data. | Shirahama Town identifies an open-air source-flowing bath. The seaside pool has been closed since 2 September 2026 because of typhoon conditions and high waves. Details on water addition, heating, circulation and disinfection for each pool are not separately published. | Day-use bath. When fully open, Saki-no-Yu is Shirahama's standout first outdoor bath for its Pacific shoreline setting. As of 7 September 2026, the seaside pool remained closed; check for an official reopening notice before going. |
| Muro-no-Yu | Minekoyu: sulfur-bearing, strongly saline sodium chloride spring. Miyuki: sodium chloride spring, as described by Shirahama Town; the supplier's description is fuller and differs in wording. Source: Minekoyu and Miyuki springs. | Source temperature: 74.0°C at Minekoyu and 78.0°C at Miyuki spring; both are source temperatures. pH: 7.2 at Minekoyu; 8.2 at Miyuki spring, from the Nanki-Shirahama Tourism Association's spring data. | Shirahama Town confirms separate source-flowing baths for the two springs. Visitors may bathe 09:00–11:00 and 14:00–21:30; the 07:00–09:00 session is for Shirahama residents only. | Day-use bath. A low-cost way to compare two distinct Shirahama springs in one bathhouse. The draw is the water itself rather than a scenic setting or a large range of facilities. |
| Shirarayu | Sodium chloride spring. Source: Kinu-yu spring. | Source temperature: 66.8°C at Kinu-yu spring; this is the source temperature. pH: 7.2, from the Nanki-Shirahama Tourism Association's Kinu-yu spring data. | Shirahama Town identifies a source-flowing bath. Visitors may use the bath 09:00–11:00 and 14:00–21:30; 07:00–09:00 is reserved for Shirahama residents. | Day-use bath. The most practical outdoor bath after time at Shirarahama Beach, with straightforward bus access, washing facilities and a sea-facing setting. |
Destination comparison
What this onsen town offers
History
72/100Spring character
79/100Town culture
73/100Seasonal scenery
74/100Access
72/100Local history
How the town developed
Four seasons
Seasonal conditions and travel rhythm
Plan your stay
Shirahama 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.
A Day Trip to Shimoda Onsen: Town Walk, Lunch and One Good SoakOne-night stay
Compare the ryokan’s bath access with public day-use options and the journey back to your next stop.
Hamachidori no Yu Kaisyu: Which Room Has a Natural Onsen Bath?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.
Staying in Shimoda Without a Car: Town Base or Shirahama?Nearby destinations
Other places in the same prefecture in the published ranking.
Related guides
Guides to Shirahama Onsen
Filter English guides by the question you need to answer.
ComparisonsShimoda Onsen on a Budget: Day Use, a Town Stay or Shirahama?
A town bath avoids a hotel bill; staying in Shirahama can save a separate coastal trip. Compare lodging, meals, transport and bath access—not room rate alone.
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ComparisonsShimoda Day-Use Onsen: City Baths or a Shirahama Sea View?
Compare Shimoda’s station-area day baths with the Pacific-facing option at Shirahama. Check each facility’s hours and transport before planning a stop.
Read the guideDay-use bathsA Day Trip to Shimoda Onsen: Town Walk, Lunch and One Good Soak
Plan a car-free Shimoda day around the station and town, then choose one bath by its opening hours. Shirahama needs a separate transport check.
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Getting thereStaying in Shimoda Without a Car: Town Base or Shirahama?
Choose a Shimoda base near the station and restaurants or by Shirahama Beach. The coastal hotel shuttle needs advance booking and has limited seats.
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Destinations & itinerariesOne Night in Shimoda: A Coastal Itinerary That Leaves Room to Soak
Shimoda town and Shirahama are separate stops. Walk the port or historic district on arrival, then leave the beach or a slower morning for day two.
Read the guideComparisonsShimoda Seaside Ryokan or Town Stay? Choosing Where to Stay
Choose Shirahama for a beach stay and Shimoda Prince Hotel’s ocean-facing bath; stay near town for easier station, port and restaurant access.
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Ryokan staysHamachidori no Yu Kaisyu: Which Room Has a Natural Onsen Bath?
At Hamachidori no Yu Kaisyu, spring-fed in-room baths are in the Hamaya cottages; open-air tubs in the Akatsuki and Nami buildings use heated water.
Read the guideDestinations & itinerariesShirahama Public Baths: Saki-no-Yu, Muro-no-Yu, Shirarayu or Matsunoyu?
Choose among four Shirahama public baths: Saki-no-Yu by the sea, Muro-no-Yu’s two springs, Shirarayu by the beach and Matsunoyu near the bus centre.
Read the guideComparisonsToretore-no-Yu or Chosei-no-Yu? Two Day Baths in Shirahama
Compare Shirahama’s Toretore-no-Yu and Chosei-no-Yu for admission, spring-water details, sauna, towels, access and visit length.
Read the guideOfficial sources
