Right Onsen › Gunma › Numata
Kuyahara Hot Spring
4.2★ · 184 Google ratings · Numata, Gunma · 久屋原温泉
✓ Day visitors✓ Outdoor bath✓ Sauna
Before you go
Can you bathe here?
Day visitors
✓ YesReported by two visitors
Hours
10:00–22:00From the facility's listing
Closed
ThursdaysStated on the facility's website
Last entry
16:30Stated on the facility's website
Tattoos
? Call aheadNo policy stated in the 38 recent reviews we read or on the facility's website
Price
¥800 adultConfirmed by recent visitor reports
Bathing
Men and women separateReported by two visitors
How we know this
- Day visitors: A standard pay-per-visit day-use hot spring (higaeri onsen), open to the public. · 2 visitors, Feb 2026
- Closed: stated on the facility's website, read 2026-09
- Last entry: stated on the facility's website, read 2026-09
- Price: Base weekday adult admission is reported as 800 yen (Feb 2026), though earlier reviews (Sep-Nov 2025, Jan 2026) cite 600 yen and one visitor paid 1000 yen; price appears to have risen over time or varies by day. · 4 visitors, Nov 2025 – Feb 2026
- Bathing arrangement: Separate men's and women's bathing areas are described. · 2 visitors, Sep 2025 – Apr 2026
The bath
What you’ll find
A modern, resort-style day-use hot spring complex near Numata with indoor and outdoor alkaline baths, a small dry sauna, a cold plunge, an on-site restaurant, and a reservable private bath.
Bath setup
Indoor baths
1.0Reported by two visitors
Outdoor bath
✓ YesConfirmed by recent visitor reports
Outdoor baths
1.0Reported by two visitors
Sauna
✓ YesConfirmed by recent visitor reports
Cold bath
✓ YesConfirmed by recent visitor reports
Spring water
Spring type
alkaline simple springReported by one visitor
Bath temperature
42°CConfirmed by recent visitor reports
How we know this
- Indoor baths: One indoor tub and one outdoor tub per gender side. · 2 visitors, Sep 2025 – Feb 2026
- Outdoor bath: The main baths include both an indoor tub and an outdoor (rotenburo) tub. · 4 visitors, Sep 2025 – Apr 2026
- Outdoor baths: One outdoor tub per gender side, alongside the indoor tub. · 2 visitors, Sep 2025 – Feb 2026
- Sauna: A small dry sauna is on site, frequently described as cramped (fits only 2-3 people). · 5 visitors, Nov 2025 – Aug 2026
- Cold bath: A cold plunge bath is available and repeatedly praised as very cold. · 5 visitors, Nov 2025 – Feb 2026
- Spring type: The spring is an alkaline simple onsen (arukari-sei tanjun-sen), with visible micro-bubbles clinging to skin. · 1 visitor, Aug 2026
- Bath temperature: Bath temperature is reported in the low-to-mid 40s C, ranging from 41 to 44°C across visits. · 3 visitors, Nov 2025 – Feb 2026
Practical
What you need
Lockers
✓ FreeLocker keys are issued at the front desk (included in admission), but the facility is small and lockers can run out, causing waits of up to 30 minutes when busy.Confirmed by recent visitor reports
Hair dryer
✓ YesConfirmed by recent visitor reports
Parking
✓ Free on siteFrom the facility's listing
Accessibility
Step-free entrance, accessible restroom and accessible parkingFrom the facility's listing. Bath access not confirmed
Facilities
Rest area
✓ YesConfirmed by recent visitor reports
Restaurant
✓ YesConfirmed by recent visitor reports
How we know this
- Lockers: Locker keys are issued at the front desk (included in admission), but the facility is small and lockers can run out, causing waits of up to 30 minutes when busy. · 3 visitors, Feb 2026 – Aug 2026
- Hair dryer: Free Dyson hair dryers are provided. · 3 visitors, Jul 2025 – Apr 2026
- Rest area: A rest area (with a small nap room) exists but is frequently described as too small, especially on busy days. · 4 visitors, Oct 2025 – Jan 2026
- Restaurant: An on-site restaurant serves local food, but it has separate hours/closed days from the bath and can close early. · 4 visitors, Aug 2025 – Jul 2026
Timing
When to go
Quietest Wednesday around 21:00. Busiest Saturday around 17:00.
| 8A | 9A | 10A | 11A | 12P | 13P | 14P | 15P | 16P | 17P | 18P | 19P | 20P | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MO | |||||||||||||
| TU | |||||||||||||
| WE | |||||||||||||
| TH | |||||||||||||
| FR | |||||||||||||
| SA | |||||||||||||
| SU |
Quiet Busy
Based on Google visit patterns, not a forecast.
Weekly hours
| Day | Hours |
|---|---|
| Monday | 10:00–22:00 |
| Tuesday | 10:00–22:00 |
| Wednesday | 10:00–22:00 |
| Thursday | Closed |
| Friday | 10:00–22:00 |
| Saturday | 10:00–22:00 |
| Sunday | 10:00–22:00 |
Closed Thursdays.
Getting there
How to get there
Nearest station
Numata6.6 km in a straight line; bus or taxi from the station
Address
327-4 Kuyaharamachi, Numata, Gunma 378-0005From the facility's listing
Show a driver
久屋原温泉The name in Japanese, for a taxi or at the counter
Phone
+81278-25-3185Japanese-speaking. For tattoos or private baths a call is the only sure answer
Website
sonatarue.comOfficial, in Japanese
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What matters
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Questions
Common questions
Can I visit Kuyahara Hot Spring without staying overnight?
A standard pay-per-visit day-use hot spring (higaeri onsen), open to the public.
How much does Kuyahara Hot Spring cost?
Base weekday adult admission is reported as 800 yen (Feb 2026), though earlier reviews (Sep-Nov 2025, Jan 2026) cite 600 yen and one visitor paid 1000 yen; price appears to have risen over time or varies by day.
