Kashikiri Onsen and Spa Sukhumvit 49
Tucked into a quiet soi off Sukhumvit 49 in the Watthana district, this spa brings Japanese onsen culture to Bangkok, offering both private and public hot spring bathing alongside massage and spa treatments. Visitors consistently describe the atmosphere as calm and authentically Japanese, making it a genuine departure from the city's energy and a notable alternative to conventional Thai spa experiences. The facilities are well-maintained, and staff are attentive to individual preferences during treatments.
The venue caters to couples and solo travellers alike, with private onsen options available for those seeking a more intimate experience. The hot springs are clean and the interior carries a quietly peaceful aesthetic that guests find transporting — several reviewers describe it as feeling like stepping into Japan rather than Bangkok. Massage services accompany the bathing experience, and staff can be directed on pressure and focus areas during sessions.
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Experience hints
Pair your visit. After Kashikiri Onsen and Spa Sukhumvit 49, round out your day in Bangkok with contrasting stops nearby.
Reviews from Google
**Absolutely Amazing Experience!** Kashikiri Onsen and Spa Sukhumvit 49 is an incredible place that truly feels like stepping into Japan. The vibe and atmosphere are so peaceful, quiet, and relaxing—perfect for unwinding and escaping the busy city. I booked the **Onsen (45 mins) + Scrub (45 mins) + Aroma Oil Massage (60 mins)** in a VIP room for 6,890 Baht (paid in cash), and everything was just perfect. The facilities were spotless and beautifully designed, making the entire experience feel luxurious. The highlight for me was the aroma oil massage—the oil was so thick and rich, providing the perfect texture for a deeply relaxing massage. The therapists were incredibly skilled and attentive, ensuring every moment was enjoyable. If you’re looking for a serene, authentic Japanese-style spa experience in Bangkok, I highly recommend Kashikiri Onsen and Spa. It’s worth every penny, and I can’t wait to visit again!
I love public onsens in Bangkok and I was looking for a private one to try out with my husband. Kashikiri is the first onsen we went together to here and we both loved it a lot! The place is clean and welcoming, very chill and has cute japanese decorations. You get a welcoming tea drink and a locker to store your clothes. After the onsen they take you to a massage room, we had a 60 min thai massage and it was very relaxing 😌
Have make an reservation one week before arrival, They will give you a form to fill up to circle area where you need to have more strength, SO even during the massage I have told her to put more strength but through out the 80-90 mins she just go around rubbing my body and legs... I'm so looking forward end up with a very disappointment for the massage. Onsen spa 45 mins & 90 mins massage 5290 baht. Please don't waste your time and money coming to this place.
A sample of visitor reviews from Google. Read all 499 reviews on Google.
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Kashikiri Onsen and Spa Sukhumvit 49: Frequently Asked Questions
Is Kashikiri Onsen and Spa Sukhumvit 49 worth visiting?
Kashikiri Onsen and Spa Sukhumvit 49 holds a 4.6★ rating from 499 Google reviews, placing it among the highest-rated wellness & spas in Bangkok.
What are the opening hours of Kashikiri Onsen and Spa Sukhumvit 49?
Kashikiri Onsen and Spa Sukhumvit 49 is typically open 10:00-22:00 — see the full day-by-day schedule in the location info on this page. Hours can change on Thai public holidays, so check ahead for holiday visits.
When is the best time to visit Kashikiri Onsen and Spa Sukhumvit 49?
The best months to visit Bangkok are November – February, with the most reliable weather. Crowds peak in December & January — going early in the day usually means fewer people. Months to think twice about: April – May (peak heat).
Where is Kashikiri Onsen and Spa Sukhumvit 49 located?
Kashikiri Onsen and Spa Sukhumvit 49 is at 84 Soi Sukhumvit 49/2, Khwaeng Khlong Tan Nuea, Watthana, Krung Thep Maha Nakhon 10110, Thailand, in Bangkok. Getting around Bangkok: BTS Skytrain (most central areas); MRT Metro (underground).
Location Info
84 Soi Sukhumvit 49/2, Khwaeng Khlong Tan Nuea, Watthana, Krung Thep Maha Nakhon 10110, Thailand081 268 4624www.facebook.com/onsen49?Visitor Information
Best time to visit
November – February
Avoid: April – May (peak heat)
Rainy season
May – October
Avg. temperature
25°C – 34°C(77°F – 93°F)
Crowds
Peak: December & January
Getting there
Suvarnabhumi (BKK) and Don Mueang (DMK) airports serve Bangkok with direct flights from most major cities.
Getting around
- •BTS Skytrain (most central areas)
- •MRT Metro (underground)
- •Airport Rail Link (ARL)
- •Chao Phraya Express Boat
- •Grab (ride-hailing app)
- •Metered taxis — always use the meter
Where to stay near Kashikiri Onsen and Spa Sukhumvit 49
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Tips for Visiting Wellness & Spas
Learn Wat Pho First
Wat Pho in Bangkok is the birthplace of traditional Thai massage education. Their on-site massage pavilion offers excellent treatments from students and graduates at reasonable prices — and you know the technique is authentic.
Communicate Pressure Preferences
Thai massage can be intense. Say 'bao bao' for lighter pressure or 'nак nак' for harder. A good therapist will check in, but don't hesitate to speak up — suffering in silence defeats the purpose.
Book Longer Sessions
A 60-minute massage is fine, but 90 or 120 minutes allows the therapist to work thoroughly. The price difference is often only 200–400 THB for an extra hour — worth it for a deeper, more relaxing experience.
Nearby Places

Rasayana Retreat
A holistic wellness retreat in Sukhumvit offering lymphatic drainage, colonics, and raw vegetarian dining in a tranquil garden setting.

Loft Thai Spa & Wellness - Sukhumvit 24
A loft-style spa on Sukhumvit 24 offering Thai massage, facials, and foot care in a calm, contemporary setting.

Kaizen Private Onsen and Spa Bangkok
A private Japanese onsen and spa experience tucked away on Sukhumvit 26, offering a tranquil wellness retreat.

Herbal Ground Spa
A highly regarded herbal spa on Sukhumvit Soi 39 offering traditional Thai treatments in a calm, beautifully designed setting.
Similar Wellness & Spas Across Thailand

Royal Palm Spa
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Centara Ao Nang Beach Resort & Spa Krabi
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The One Massage - Pattaya
A well-regarded traditional Thai massage spa on Walking Street, open nightly until 12:30 AM.
Where to stay near Kashikiri Onsen and Spa Sukhumvit 49
Find hotels in Bangkok on the booking sites travellers trust most.
- Compare prices across sites
- Filter for free cancellation
- Secure checkout on the partner site
Compare rates on Booking.com
Largest selection
Compare rates on Expedia
Bundle & save
Compare rates on Hotels.com
Member prices
We may earn a commission from bookings made through these links — at no extra cost to you. Learn more.
Location Info
Visitor Information
Best time to visit
November – February
Avoid: April – May (peak heat)
Rainy season
May – October
Avg. temperature
25°C – 34°C(77°F – 93°F)
Crowds
Peak: December & January
Getting there
Suvarnabhumi (BKK) and Don Mueang (DMK) airports serve Bangkok with direct flights from most major cities.
Getting around
- •BTS Skytrain (most central areas)
- •MRT Metro (underground)
- •Airport Rail Link (ARL)
- •Chao Phraya Express Boat
- •Grab (ride-hailing app)
- •Metered taxis — always use the meter
