No. 15 · Shizuoka
Atami Onsen
Atami Onsen ranked No. 15 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 Atami Onsen
Facility-level figures; blank town-wide averages are not inferred.
Named facility records for Atami Onsen. Figures marked “Not published” are not treated as town-wide averages.
| Facility | Spring | Source data | Supply | Bath type |
|---|---|---|---|---|
| Ocean Spa Fuua | Calcium-sodium chloride spring. Source: Ocean Spa Fuua's own spring; the current official site does not publish an individual source number. | Source temperature: 55°C at the source; this is not the bathing-pool temperature. pH: Not published. | The facility explicitly describes one open-air bath as flowing spring water. Treatment details for the other pools are not published pool by pool, so they should not all be described as free-flowing. | Day-use bath. Come for the open-air sea views and the room to make an afternoon of it: Fuua pairs several baths with lounges and sauna facilities. It is a premium-priced day spa, and some areas are scheduled to close for renovation from September 28, 2026, so check the operator's latest notices before visiting. |
| Hotel New Akao (Day-Use Onsen) | All three are sodium-calcium chloride springs; the facility's published wording varies slightly in the order of the minerals. Source: Atami No. 402 (Nishikiura), No. 196 and No. 353 (Nishikiyu) springs. | Source temperature: Precise temperatures for the individual springs are not published on the current main official pages. pH: No. 402: pH 7.3; No. 196: pH 7.31; No. 353: pH 7.9. | The hotel identifies which spring is used by each bath: Atami No. 402 at Sparium Nishiki, No. 196 at Saikai and No. 353 at Namine. The current official pages do not fully publish water addition, heating, circulation or disinfection conditions pool by pool, so the whole property is not described as source-flowing. | Day-use bath. A good fit if you want sea views and a chance to compare three springs in one visit. Allow at least a couple of hours; a very short stop makes less use of the day ticket. |
| KKR Hotel Atami (Day-Use Onsen) | Sodium-calcium chloride spring. Source: The hotel's own on-site spring. | Source temperature: 64.3°C. pH: The same official page lists both “P.H. 6.6” and hydrogen-ion concentration pH 7.1; both published values are retained rather than reconciled. | The hotel describes itself as an inn with source-flowing hot-spring water and uses its own on-site spring in the seventh-floor panoramic bath. The current page does not fully specify water addition, heating, circulation or disinfection for every pool, so no uniform treatment claim is made. | Day-use bath. A convenient last stop for car-free travellers who want a sea-view bath before returning to Atami Station. Weekend, holiday, fireworks-day and cleaning-day closing times can differ, so confirm before going. |
Destination comparison
What this onsen town offers
History
96/100Spring character
89/100Town culture
90/100Seasonal scenery
93/100Access
97/100Local history
How the town developed
Four seasons
Seasonal conditions and travel rhythm
Plan your stay
Atami 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.
Atami Day-Use Onsen: Four Baths for Different Schedules and BudgetsOne-night stay
Compare the ryokan’s bath access with public day-use options and the journey back to your next stop.
Atami Fireworks 2026: Where to Stay and WatchStay 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.
Tokyo to Atami: Shinkansen, Local Trains and the Easiest Route from HanedaNearby destinations
Other places in the same prefecture in the published ranking.
Related guides
Guides to Atami Onsen
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Getting thereTokyo to Atami: Shinkansen, Local Trains and the Easiest Route from Haneda
Compare Shinkansen and local trains to Atami from Tokyo or Haneda, with 2026 fares, transfer times, beach access and fireworks-night advice.
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ComparisonsAtami Day Trip or Overnight Stay? Decide by What You Want After Sunset
Compare an Atami day trip with an overnight stay by train time, evening beach lights, fireworks, next-morning walks and the cost of moving hotels.
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Ryokan staysAtami Fireworks 2026: Where to Stay and Watch
Compare room views, hotel viewing areas and waterfront spots for Atami’s 2026 fireworks. Check event dates, dinner timing and the crowded trip back.
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Destinations & itinerariesOne Night in Atami: Kinomiya Shrine, the Beach and MOA Museum
Plan Kinomiya Shrine and Sun Beach on day one, then visit MOA Museum before departure. The hillside stops are easier to split across an overnight stay.
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Ryokan staysAtami Onsen Ryokan: Four Stays, Four Very Different Ways to Bathe
Compare four Atami ryokan by bath access: private-use onsen, ocean-view public baths, Fuua spa plans and natural hot-spring baths in every room.
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Getting thereWhere to Stay in Atami: Station, Sun Beach, the Port or the Hillside?
Compare Atami Station, Sun Beach, the port and hillside stays by luggage, evening plans, fireworks access and shuttle needs.
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Ryokan staysKisoya in Gero: What the Tatami Bathhouse and Room Plans Offer
Kisoya’s public bath has tatami washing floors, baby baths and changing-room beds. Room dining is available on selected plans; its rose bath closed in 2025.
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Bathing rulesShirasagi-no-Yu in Gero: 2026 Prices, Bath Rules and What to Bring
Shirasagi-no-Yu is a ¥470 public bath in Gero with a hinoki tub and tatami washing floor. See hours, stairs, supplies, cash and access details.
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Destinations & itinerariesShima Onsen’s Three Free Public Baths: Which One Should You Visit?
Compare Kawaranoyu by the bus stop, source-flowing Kaminoyu and Gomusonoyu in Hinatami; all are open 9 a.m.–3 p.m.
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Ryokan staysHotel Hirugami no Mori: Which Room and Stay Plan Make Sense?
Compare Hirugami no Mori’s tatami and bed rooms, public baths, seasonal pool and meal times, then check current operating notes before booking.
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ComparisonsJapan’s 2026 Onsen Ranking for Travellers in Their 20s
Jalan’s 2026 survey ranked Hakone first among people in their 20s, then Kusatsu, Atami, Dogo and Gero. See what the poll measured and how routes differ.
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Destinations & itinerariesYutorogi no Yu in Shimabara: Hours, Admission and Getting There
Yutorogi no Yu in Shimabara charges ¥530 for adults and closes Wednesdays. Its source-fed bath, sauna and tatami rest room are a ten-minute station walk.
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Sento & public bathsJuraku Onsen in Kitakagaya: A Neighborhood Sento with a Garden and Rest Room
Juraku Onsen reopened in 2023 with soft-water baths, a garden, Wi-Fi and tatami rest room. Closing times conflict across listings, and no sauna is listed.
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Destinations & itinerariesShima Onsen in One Day: A One-Way Walk from Seiryu no Yu to Hinatami
Take the 9:25 Nakanojo bus if running, arrive for Seiryu-no-yu’s 10 a.m. opening and walk uphill through Yamaguchi, Shin-yu and Yuzuriha to Hinatami.
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Ryokan staysWhere to Stay in Shima Onsen: Yamaguchi, Shin-yu, Yuzuriha or Hinatami?
Compare Yamaguchi, Shin-yu, Yuzuriha and Hinatami in Shima Onsen by bus access, bathhouse walks, river setting and distance between inns.
Read the guideDay-use bathsAtami Day-Use Onsen: Four Baths for Different Schedules and Budgets
Compare Ocean Spa Fuua, Hotel New Akao, KKR Hotel Atami and Premium Atami by hours, station access, bath variety and price.
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Destinations & itinerariesSatoyama-no-yu in Nomi: A Local Bath with an Outdoor Pool and Sauna
Satoyama-no-yu has indoor and outdoor baths, sauna and tatami lounge for ¥520. The last daytime bus toward Nomi-Negishi Station leaves at 6:09 p.m.
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Ryokan staysKomparu-yu in Osaki: A Quiet Bona Sauna and a Tatami Rest Room
Komparu-yu is an Osaki sento with a quiet Bona sauna, cold bath and tatami lounge. Adult entry is ¥600; sauna access costs another ¥600.
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Destinations & itinerariesSugamo-yu: Tatami Underfoot, Double Cold Baths and a Timed Sauna
At Sugamo-yu, try tatami-style floors, automatic löyly and 15°C and 30°C cold baths. Entry is ¥600; sauna costs extra.
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Day-use bathsUreshino Onsen Day-Use Baths: Siebold no Yu, Tokai and Hatsuneso
Compare Siebold no Yu’s early public bath, Tokai’s Arita-ware private tubs and Hatsuneso’s tatami baths and family room by hours and rules.
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Day-use bathsAkakura Yukemurikan: Is This Day-Use Onsen Worth the Detour?
This Mogami bathhouse has an outdoor bath, bookable private bath and free tatami room. Admission is ¥500; the nearest station is 2.9 km away.
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