Sento (銭湯) are Japan’s neighborhood public bathhouses — a centuries-old institution that still thrives in cities today. Unlike onsen (which use natural hot spring water), sento heat ordinary water. They’re cheap, local, unpretentious, and one of the most authentic experiences of everyday Japanese life.
Sento vs Onsen: What’s the Difference?
| Sento (銭湯) | Onsen (温泉) | |
|---|---|---|
| Water source | Heated tap water | Natural hot spring |
| Location | Urban neighborhoods | Resorts, rural areas, some cities |
| Price | ¥480–600 | ¥500–2,500+ |
| Atmosphere | Local, everyday | Relaxing, resort-like |
| Facilities | Basic to moderate | Often extensive |
Both are bathing culture — the etiquette is the same.
Finding a Sento
- Google Maps — search “銭湯” near your location
- Sento Map (銭湯マップ) app — shows nearby sento with hours and prices
- In Tokyo, the set price is ¥530 for adults (regulated by Tokyo Metropolitan Government)
- Osaka: ¥490, Kyoto: ¥500 (prices vary by prefecture)
Most sento are open from around 3pm–midnight. Some open early for morning bathers.
What to Bring
Essential:
- Towel (small hand towel minimum) — many rent them (¥100–200)
- Soap/shampoo/conditioner — or buy at the front desk
Optional:
- Razor, face wash, moisturizer
- Clean change of clothes
- Small bag for your items
Don’t bring:
- Electronics into the bath area
- Swimwear — not worn at Japanese sento (total nudity is standard)
Step-by-Step: How to Use a Sento
1. Entrance
- Look for separate doors: 男 (otoko, men) and 女 (onna, women)
- Sometimes marked in English, sometimes just with characters or noren curtains (blue = men, red = women)
2. Pay and Get a Locker
- Pay at the front desk (番台, bandai — the traditional elevated counter)
- Receive a locker key
- Some sento use vending machine ticketing
3. Undress in the Changing Room
- Everything off — sento and onsen are always nude
- Store clothes and belongings in your numbered locker
4. Enter the Bath Area
- Take your small towel in with you (don’t let it touch the bath water)
5. Rinse First — This is Mandatory
- Always shower before entering the tub — no exceptions
- Sit at one of the low stools in front of a tap/shower station
- Wash your whole body with soap thoroughly
6. Enter the Bath (湯船, Yubune)
- Slide in slowly — the water is hot (42–44°C)
- First-timers: acclimate gradually
- Keep your towel folded on your head or at the edge — never in the water
7. Relax
- Most sento have multiple baths: hot, very hot, jet bath, cold plunge, electric bath (denkiburo)
- Cold plunge (水風呂) — alternating hot/cold is excellent for circulation
- Electric bath (電気風呂) — mild electric current; unusual sensation, loved by regulars
8. Exit
- Towel off inside the bath area before stepping out
- Don’t drip water across the changing room floor
9. The Changing Room
- Relax on provided benches
- Many sento have hair dryers (free or ¥20 coin-operated)
- Vending machines for drinks — cold milk is the traditional post-bath drink
Tattoo Policy
Many sento have a no tattoo policy, though this is slowly changing:
- Traditional sento: often no tattoos
- Newer or foreigner-friendly sento: increasingly accepting
- Some allow small or covered tattoos; ask before entering
- In Tokyo, some sento explicitly welcome foreigners with tattoos — check in advance
Types of Sento
Traditional (銭湯): Old-school neighborhood bath. Mount Fuji mural on the wall, wooden counter, classic atmosphere.
スーパー銭湯 (Super Sento): Larger facilities with sauna, outdoor bath, food area, manga reading rooms. Usually ¥600–1,200.
サウナ (Sauna): Many sento have Finnish-style saunas gaining popularity. Dedicated sauna facilities are increasingly common.
Sento and Japanese Community
For foreigners living in Japan, regular sento visits offer a genuine connection to neighborhood life. You’ll see the same local faces — retirees who come every day, salarymen unwinding after work. It’s one of the few places where all social backgrounds share the same space.