Verdict in one line: Yunomori Sathorn is one of the most reliable ways to do a Japanese-style onsen and a Thai massage in central Bangkok in one visit. It holds ★ 4.8 from 794 verified bookings on ThaiHand, the second-highest review count of any shop on the platform. Go on a weekday, and soak before your massage, not after.
How this review works: we haven’t dressed up a staged visit. This review is built from what actually shows up in the data: 794 ratings and 77 written comments from guests who booked through ThaiHand, the live menu and prices, and Yunomori’s own house rules. Comments are quoted without names, and translations are marked.
At a glance
| Rating | ★ 4.8 from 794 bookings: ambience 4.81 · cleanliness 4.81 · staff 4.79 |
| Rating split | 85% five-star · 11% four-star · 4% three stars or below |
| Address | 54 Soi Suksawittaya (Sathorn Soi 10), Silom, Bang Rak, Bangkok 10500 |
| Area | Sathorn / Chong Nonsi – Sala Daeng (BTS & MRT area) |
| Hours | 10:00 – 24:00 daily |
| Price from | ฿1,250 (onsen day pass + 60-min Thai massage) |
| App discount | up to ~5% depending on slot |
| Facilities | Lockers, changing rooms, parking, free Wi-Fi, English-speaking staff |
| Other branches on ThaiHand | Sukhumvit 26 (★ 4.7 from 63) and Pattaya |
Prices & packages (Oct 2026)
Yunomori sells onsen access bundled with a treatment, so you’re not paying for the bath and the massage separately.
| Package | Duration | Price |
|---|---|---|
| Onsen Day Pass + Thai Massage | 60 min massage | ฿1,250 |
| Onsen Day Pass + Thai Massage | 90 min massage | ฿1,450 |
| Onsen + Deep Sleep Head Massage | 60 min | ฿1,300 |
| Onsen Day Pass + Aroma Massage | 90 min | ฿2,475 |
Is it good value? A typical 60-minute Thai massage in Bangkok costs ฿550 at a massage shop and about ฿990 at a day spa (see our Bangkok massage price guide). Yunomori’s ฿1,250 includes a full day of onsen access on top of the massage, which puts it at the value end for an onsen-plus-massage day. Several guests describe staying for hours: “I can stay here all day long,” wrote one first-timer.
Which package to pick:
- First visit: Day Pass + Thai Massage, 90 min (฿1,450). The extra 30 minutes costs only ฿200, and Thai massage was the most-reviewed treatment by far.
- Can’t sleep / screen-tired: Deep Sleep Head Massage (฿1,300). Guests who chose it describe “massage, soak, nap, soak again” (translated from Thai).
- Treat day: Aroma 90 min. Read the oil rule below first.
What guests consistently praise
We read all 77 written comments. Four themes came up again and again:
1. The baths themselves. There are several pools to rotate through, each one different. “One of the best onsen in BKK.” “The onsen pools are amazing.” Thai guests mention “many pools to choose from, and each one feels different” (translated).
2. The Thai massage. This is the treatment guests review most, and the comments are consistently positive. “Thai massage was great.” “Felt much better after massage here.” One guest, translated from Chinese, said the reception explanation was thin “but the therapist’s technique was excellent and made up for most of it.”
3. Easy to reach. It’s on a quiet Sathorn side street in the Chong Nonsi – Sala Daeng transit area, with parking on site. “Location is so nice for transportation.”
4. The food. The healthy set meal shows up surprisingly often in reviews. The coconut soba and the post-massage mochi get specific praise. “The coconut soba… will come again.”
What to know before you go (the honest part)
The critical comments are just as consistent as the praise, and they’re useful:
- Weekends get crowded. This is the most common complaint. “A lot of customers during weekend.” “Too crowded.” “Many people, so long waits” (translated). Several regulars say outright: go on a weekday, ideally in the morning.
- No going back into the onsen after an oil massage. This is a house rule: after receiving massage treatments, customers are not allowed to return to the onsen room. One aroma guest gave 3★ because nobody explained it upfront. Plan to soak first, then massage.
- First-timer confusion. A few guests found the changing and locker routine confusing on a first visit. Give yourself 15 minutes before your slot (Yunomori asks for this anyway).
- The food can be slow at peak times. Two guests mention waits for the set meal. Order early if you’re on a schedule.
House rules (from Yunomori)
- Book in advance. Changes are allowed up to 6 hours before your slot.
- Arrive 15 minutes early.
- Onsen areas are separated by gender. Children must go in with a parent of the same gender.
- Not suitable for guests with heart conditions or skin conditions, during menstruation, or during pregnancy.
- After a massage, you can’t return to the onsen.
- Onsen etiquette applies: shower before entering the pools, and keep face masks and towels out of the water. Guests have complained about other guests who didn’t follow this.
To change a ThaiHand booking, contact ThaiHand on Facebook or call 080-046-4299.
Sathorn or Sukhumvit 26?
| Sathorn (Soi 10) | Sukhumvit 26 | |
|---|---|---|
| ThaiHand rating | ★ 4.8 (794) | ★ 4.7 (63) |
| Hours | 10:00–24:00 | 10:00–24:00 |
| Menu & prices | Same packages | Same packages |
| Best if you’re staying in | Silom, Sathorn, Lumphini, Riverside | Phrom Phong, Thonglor, Asok |
A Thai regular who has been to both says the Sukhumvit branch is a little bigger, with slightly different pools (translated). Go to whichever is closer. The menu is the same at both.
Who should go and who should skip
Go if:
- you want your first onsen in Bangkok without paying private-onsen prices (about ฿1,000–฿3,200 for 45–60 minutes at other Bangkok private onsens on ThaiHand)
- you want a half day of rest rather than a one-hour massage
- you can go on a weekday
Skip (or pick a private onsen) if:
- you’re not comfortable with shared, gender-separated bathing. One guest wrote, “I wish there was a private option — I didn’t dare to soak, only got the massage” (translated).
- you only have a Saturday afternoon and dislike crowds
For private-onsen alternatives, see our Bangkok onsen guide (TH: ออนเซ็น กรุงเทพ ที่ไหนดี).
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FAQ
How much is Yunomori Onsen in Bangkok?
On ThaiHand, the Onsen Day Pass + 60-minute Thai Massage is ฿1,250, the 90-minute version is ฿1,450, and the Day Pass + 90-minute Aroma Massage is ฿2,475 (Oct 2026).
Is Yunomori Onsen mixed gender?
No. The onsen areas are separated by gender.
Can I go back into the onsen after my massage?
No. Yunomori’s rule is no return to the onsen after a massage treatment, so soak first.
What are Yunomori Sathorn’s opening hours?
10:00 to midnight daily.
When is the best time to visit?
Weekday mornings, according to repeat guests. Weekends are the most common source of complaints about crowding.
Should I tip at Yunomori?
Tipping your massage therapist is customary in Thailand. See how much to tip.
Data: 794 ratings and 77 written comments from verified ThaiHand bookings at Yunomori Onsen & Spa Sathorn, retrieved 27 Oct 2026. Prices are as listed on ThaiHand and may change. Reviewer names are withheld.
