Sauna etiquette varies significantly by country, so the rules that apply in Finland won't necessarily apply in Japan, Germany, or South Korea. Getting it wrong can mean anything from awkward stares to being asked to leave, so knowing the local customs before you strip down or stay silent is genuinely worth your time.
Yes. And ignoring these rules won't just make you look like a tourist—it might get you asked to leave.
Sauna culture varies more than most people realize. What's normal in Finland could get you stared at in Japan, and what's standard in Germany might feel invasive in Russia. If you travel for work, train internationally, or just want to use a sauna the right way wherever you are, here's what you need to know.
Finland: The Original
Finland is where modern sauna culture was built. There are roughly 3 million saunas for 5.5 million people. This isn't a luxury—it's a basic part of life.
The rules:
- Silence is acceptable. Finns don't do small talk in the sauna. If someone isn't talking, they aren't being rude. They're being normal.
- Nudity is standard. Swim trunks are common in public saunas, but in private homes or traditional smoke saunas, you go without. Wearing a swimsuit can actually be seen as unhygienic because wet fabric traps bacteria.
- Don't sit directly on the bench without a towel. You bring your own towel to sit on. This is about hygiene, not modesty.
- The löyly (steam) is sacred. Throwing water on the rocks is done by the person who controls the stove. Don't do it without asking, and don't throw too much. A good Finn will tell you when it's right.
- No alcohol before or during. This is a common misconception. Traditional Finnish sauna is sober. Drinking comes after, usually with grilled sausage and cold beer.
What not to do: Don't talk loudly. Don't splash water on the walls. Don't leave the door open longer than necessary—it kills the heat for everyone.
Russia: The Banya
The Russian banya is more intense than the Finnish sauna. It's hotter, steamier, and involves physical contact you won't find elsewhere.
The rules:
- You will get hit with birch branches. This is called venik (vyeh-NEEK). A bundle of leafy birch branches is soaked in hot water, then used to slap your body. It increases circulation and exfoliates the skin. It's not punishment—it's therapy.
- Expect temperature swings. The banya is hot (around 70–90°C / 160–190°F). Then you jump into cold water, snow, or an ice plunge. Repeat. This is the point.
- Nudity is common in private banyas. Public ones usually require swimwear or a sheet. Check before you strip.
- Hats are worn. A felt or wool hat protects your head and ears from the heat. If you don't bring one, you'll look like someone who doesn't know what they're doing.
- No photography. Ever. The banya is a private space.
What not to do: Don't refuse the venik if offered. It's a gesture of hospitality. Don't sit in the steam room for more than 10–15 minutes without taking a break. And don't be surprised if someone pours honey or salt on you—it's part of the ritual.
Japan: The Onsen and Sento
Japan's bathing culture is ancient and deeply ritualized. The sauna is usually part of a larger facility that includes hot springs (onsen) or public baths (sento).
The rules:
- You must wash before entering. This is non-negotiable. There are shower stations with stools, buckets, and faucets. Scrub thoroughly. Soap is provided. Do not enter the bath or sauna without washing first.
- No swimwear. Most Japanese baths are nude-only. If you're uncomfortable, you're not alone—but you still do it. Some facilities sell small towels you can use to cover yourself while walking between areas.
- The small towel stays out of the water. You bring a small hand towel. It goes on your head or beside the bath. It does not go into the water. Ever.
- Tattoos are often banned. This is changing in tourist areas, but many traditional onsens still prohibit visible tattoos due to their association with organized crime. Check ahead or use a concealing patch.
- Quiet is expected. Conversation is minimal. Loud talking, laughing, or phone use will get you stared at.
- No photography. Same as Russia. Phones stay in the locker.
What not to do: Don't dip your towel in the bath. Don't splash. Don't swim—these are soaking baths, not pools. And don't go straight from the sauna into the cold bath without cooling down first—that's how people pass out.
Germany: The Aufguss Experience
Germany takes sauna seriously. The Aufguss (OWF-gooss) is a ritual where an attendant pours water infused with essential oils over the hot stones, then uses a towel to circulate the heat and steam through the room.
The rules:
- Nudity is the norm in most saunas. Germany is not shy. Swimwear is often banned in the sauna itself. If you wear trunks, you may be asked to remove them. This is about hygiene—wet fabric traps bacteria and reduces heat penetration.
- The Aufguss is scheduled. You don't just throw water on the rocks whenever you want. There are specific times. The attendant controls the session. You sit, you sweat, you breathe. When it's over, the door opens and you leave.
- Towel discipline. You sit on a towel. You don't drag it on the floor. You don't use it to wipe sweat off your body (that's what the showers are for).
- Mixed-gender saunas are common. Families, couples, friends—all together, all nude. It's not sexual. It's normal.
- Cool-down is part of the routine. After the sauna, you shower, then use a cold plunge pool or cold shower. Then rest. Then repeat.
What not to do: Don't talk during the Aufguss. Don't leave early unless it's an emergency. Don't wear shoes into the sauna. And don't use your phone in the sauna area—Germans will call you out.
South Korea: The Jjimjilbang
The Korean jjimjilbang (jeem-jil-bahng) is a massive public bathhouse that includes saunas, hot pools, cold pools, steam rooms, and often sleeping areas, restaurants, and entertainment.
The rules:
- You pay for time, not just access. You check in, get a locker key and a uniform (shorts and a T-shirt), and the clock starts. Some are 24 hours.
- Gender separation in the bath areas. The wet areas (baths, showers, nude saunas) are gender-segregated. The dry saunas and common areas are co-ed, and you wear the uniform.
- Nudity in the gender-separated areas. Same as Japan—wash first, then enter the baths or sauna nude.
- The uniform is required in common areas. You don't walk around in your towel or swimsuit. You wear the provided shirt and shorts.
- Sleeping is normal. Jjimjilbangs are often used as budget accommodation. People nap on heated floors, in lounges, or in designated sleeping rooms. Snoring is tolerated.
- Scrubbing services are available. Older Korean women (called ajumma) offer full-body exfoliation scrubs. It's aggressive, thorough, and leaves your skin feeling like new skin. It's not sexual—it's a service.
What not to do: Don't wear shoes in the bath areas. Don't use your phone in the bath or sauna. Don't stare. And if you get the scrub, expect to be flipped, pulled, and scrubbed raw.
Frequently asked questions
Is nudity required in Finnish saunas?
In public Finnish saunas swim trunks are common, but in private homes or traditional smoke saunas nudity is the standard. Wearing a swimsuit can actually be considered unhygienic because wet fabric traps bacteria. You should always bring your own towel to sit on for hygiene, not modesty.
What is a venik and do you have to accept it in a Russian banya?
A venik is a bundle of leafy birch branches soaked in hot water and used to slap the body during a banya session. It's considered a gesture of hospitality, so refusing it when offered would be seen as impolite. The practice is meant to increase circulation and exfoliate the skin, not as punishment.
Do you have to wash before using a Japanese onsen or sauna?
Yes, washing before entering is non-negotiable in Japanese bathing culture. Facilities have shower stations with stools, buckets, and faucets, and soap is provided. You must scrub thoroughly before entering any bath or sauna area.
What is the Aufguss in a German sauna?
The Aufguss is a scheduled ritual where an attendant pours water infused with essential oils over the hot stones and then uses a towel to circulate the heat and steam through the room. You don't throw water on the rocks yourself and you don't leave early unless it's an emergency. Talking during the Aufguss is also considered poor form.