Sauna Etiquette in London: The Unwritten Rules

London's sauna scene pulls from Finnish, Russian, German, and Turkish traditions — each with its own etiquette. On top of that, the city has developed its own norms: a uniquely British blend of courtesy, swimwear, and polite uncertainty about whether you're allowed to pour water on the stones.

The result is that "sauna etiquette" in London isn't one thing. It depends entirely on where you go. Here's what's actually expected at every type of venue.

The Universal Rules

These apply everywhere in London, no exceptions.

Shower before you enter. Every venue requires this. A proper wash, not a token splash. You're removing deodorant, perfume, sweat, and anything else that doesn't belong in a shared heat space. This is the single most important etiquette rule, and the one most commonly skipped by first-timers.

Sit on a towel. Always. Lay your towel across the bench before you sit or lie down. This is for hygiene — nobody wants to sit in someone else's sweat. Two towels is the standard recommendation everywhere: one to sit on, one to dry off with.

Remove jewellery. Metal gets dangerously hot in a sauna. Rings, necklaces, watches, earrings — take them all off before you go in. Rooftop Saunas specifically flags this, but it applies everywhere. Contact lenses and glasses should come off too.

Stay hydrated. Drink water before, during, and after. Banya No. 1 recommends drinking "a little amount of water but often" rather than large quantities. Avoid alcohol before a session — heat and booze don't mix well, and most venues either prohibit it entirely or strongly advise against it.

No phones in the sauna room. The heat and humidity will damage your phone, and nobody wants to be photographed while sweating in their swimwear. Community Sauna Baths designates itself a "phone-free zone" and intentionally disables Wi-Fi to encourage disconnection. ESPA Life at Corinthia requires all electronic devices to be switched off. Even at venues without explicit bans, bringing a phone into the sauna room is a hard no.

What to Wear

This is the question that causes the most anxiety, and the answer is: it depends on the venue and the session.

The default in London is swimwear. Unlike Finland or Germany, where nudity is the norm, most London saunas expect you to wear swimwear during mixed sessions. This is true of social saunas, hotel spas, leisure centres, and most recovery hubs. Community Sauna Baths, Rooftop Saunas, and Every Active all explicitly state that full nudity is not permitted during standard sessions.

Single-sex sessions are different. At venues that run gendered sessions — Porchester Spa, The Bath House, Banya No. 1 — nudity is typically permitted during single-sex days. Swimwear becomes optional rather than required. This is the closest London gets to the Finnish or German norm.

Textile-free sessions exist but are clearly labelled. Sweheat Sauna in the Royal Docks runs explicit textile-free aufguss sessions, and their final evening session each day is also clothing-optional. Community Sauna Baths allows optional toplessness for all genders at their Hackney Wick location, but requires coverage from the waist down at all sites.

When in doubt, wear swimwear. You will never be wrong in a swimsuit. You will occasionally be wrong without one.

Gendered Sessions

Several London venues run dedicated men-only and women-only sessions. These aren't relics — they're actively valued by regulars, and at Porchester Spa, a petition with 750+ signatures was raised when the operator proposed reducing them.

Here's the current schedule:

• Porchester Spa: Women — Tuesday, Thursday, Friday. Men — Monday, Wednesday, Saturday. Mixed — Sunday.
• The Bath House, Belgravia: Women — Thursday. Men — Tuesday. Mixed — all other days.
• Banya No. 1, Hoxton: Women — Monday mornings. Men — Tuesday evenings, Friday afternoons. Mixed — all other times.
• Banya No. 1, Chiswick: Women — Wednesday. Men — Tuesday. Mixed — all other days.
• Finnish Church, Rotherhithe: Always gender-segregated.
• Community Sauna Baths: Women's sessions at Camberwell (Thursday mornings), Walthamstow (Monday mornings), and Stratford (Wednesday mornings). They also run Trans Sauna nights and dedicated sessions like "For Brothers That Talk" — wellbeing sessions for Black men.

One detail worth knowing at Banya No. 1: during women-only sessions, male therapists may be present to perform the parenie ritual.

Social Sauna Etiquette

The social saunas — Community Sauna Baths, Sauna Social Club, Rooftop Saunas, The Cabin Sauna, and others — are the venues most people think of when they think of London's sauna boom. They share a set of norms that are worth understanding before you visit.

Talking is welcome, but read the room. These are social spaces, but that doesn't mean a free-for-all. Community Sauna Baths asks guests to "be aware of the volume, tone, and type of conversations." If you're in a group, be conscious of how your conversation might feel to someone sitting alone — large groups can make the space feel exclusive.

Sauna Social Club splits it explicitly. Their main sauna is a "deep listening" space with a sound system — designed for quiet contemplation, not chat. The upstairs sauna and yard are the social zones. If a venue makes this kind of distinction, respect it.

Don't comment on bodies. Community Sauna Baths is explicit about this: no commenting on people's bodies or tattoos. It sounds obvious, but it's the kind of thing that happens more than you'd think and makes people uncomfortable.

Alcohol policies vary. Community Sauna Baths is a sober space — no alcohol, drugs, smoking, or vaping. Sauna Social Club, on the other hand, serves craft beers and tinned cocktails alongside non-alcoholic options. Know which kind of venue you're at before you bring a can of something.

Consent matters. This applies to everything — conversation, physical proximity, photography. Community Sauna Baths requires verbal consent before photographing anyone, even outside the sauna. Several venues describe themselves as "non-sexual spaces" where intimate contact is not permitted.

Banya Etiquette

If you're visiting The Bath House in Belgravia or Banya No. 1 in Hoxton, you're entering a Russian bathing tradition with its own specific customs.

The parenie ritual. This is the centrepiece of the banya experience — a banschik (bath master) beats you with bundles of birch, oak, or eucalyptus branches (called venik) inside a superheated steam room running at 70–100°C with 40–60% humidity. It's intense, theatrical, and not painful in the way you might expect. The leaves release essential oils and the heat opens your pores.

After the parenie, Banya No. 1 recommends full-body submersion in the cold plunge — including your head. This completes the thermal cycle.

Wear a felt hat. In the banya steam room, a felt hat (provided by the venue) is essential. It insulates your head from the extreme heat and prevents overheating. This isn't optional fashion — it serves a real purpose.

Pace yourself. Banya No. 1 recommends no more than 5–10 minutes for your first steam room visit, with 15–30 minutes of rest between rounds. Don't try to be a hero on your first visit. The heat in a banya steam room is significantly more intense than a standard Finnish dry sauna.

Keep quiet. Banya No. 1's published rules state: "Don't make noise; respect the calm environment." The banya is not the place for loud conversation. Between rounds, in the rest area, chat away — but inside the steam room, keep it down.

Turkish Bath Etiquette

Porchester Spa, Ironmonger Row Baths, and York Hall carry on London's Turkish bathing tradition, though each has evolved in its own direction.

The graduated hot rooms. A traditional Turkish bath circuit moves through rooms of increasing temperature — tepidarium (warm), caldarium (hot), laconicum (very hot). At Porchester Spa, you move through these at your own pace, cooling off in the cold plunge pool between rounds. There's no rush and no set order.

Schmeissing. Porchester Spa preserves a distinctive tradition found at only two spas in the UK: the schmeiss, where an expert rubs your body with a soapy raffia brush in the steam room. It's an optional service and genuinely unusual — if you're at Porchester, it's worth trying at least once.

Nudity on single-sex days. At Porchester, nude bathing is permitted during single-sex sessions (Monday/Wednesday/Saturday for men, Tuesday/Thursday/Friday for women). During mixed Sunday sessions, swimwear is compulsory.

Ironmonger Row has changed. Following a 2024 refurbishment under Spa Experience management, multiple sources indicate that single-sex sessions have been removed and swimwear is now compulsory at all times. If the availability of nude single-sex sessions matters to you, check the current policy before booking.

Aufguss Etiquette

Aufguss — the German-Austrian sauna ritual where a sauna master (Aufgussmeister) places ice infused with essential oils on the stones and circulates the aromatic steam with choreographed towel movements — is growing fast in London. Sweheat Sauna, Arc, and &Soul Shoreditch all run aufguss sessions. The UK even has its own national championships, run by the British Sauna Society.

The etiquette is specific:

Don't enter once the ceremony has started. Opening the door drops the temperature and disrupts the ritual. Arrive before it begins. If you're late, wait for the next one.

Don't leave mid-round unless you genuinely feel unwell. If you need to exit, do it quickly and quietly between rounds.

Stay silent during the ceremony. The Aufgussmeister is performing. Talking disrupts the experience for everyone.

Sit low if you're new. Heat rises sharply in a sauna. The top bench during an aufguss can be dramatically hotter than the bottom. If it's your first time, take a lower seat and see how you handle it.

Clap at the end. It's customary to applaud the Aufgussmeister after each round. This is standard in Germany and Austria and has carried over to London.

Clothing varies. Sweheat Sauna aufguss sessions are explicitly textile-free. Arc requires swimwear at all times. Check the venue's policy before you strip off.

Cold Plunge Etiquette

The cold plunge is where the most etiquette confusion happens — partly because it's new to most people and partly because there's a strong temptation to scream.

Shower before you plunge. This applies just as much to the cold plunge as to the sauna. You're sharing the water.

WellNest's published rules are a good baseline: cool down for at least 10 minutes after the sauna before entering the ice bath, and stay in for no longer than 5 minutes (1–2 minutes recommended). Their guidance also says to wash your feet in the bucket provided before entering.

Don't splash. Getting into a cold plunge should be a controlled, quiet entry — not a cannonball. The people already in there chose their own moment to enter, and your splash isn't part of their plan.

Respect the queue. At busy venues, cold plunges can have a wait. Don't hog them. A couple of minutes is a session — you don't need ten.

Graduated pools have a purpose. At Sauna & Plunge, the pools are at 3°C, 6°C, and 9°C. Start at 9 and work down if you're new. Nobody is impressed by the person who jumps straight into 3°C and has to climb out after four seconds.

Loyly: Pouring Water on the Stones

This is the etiquette that catches out the most people. In Finnish tradition, pouring water on the sauna stones (loyly) is fundamental — it creates a burst of humid heat that transforms the room. In London, it's more complicated.

Always ask before pouring. Both Community Sauna Baths and Everyone Active explicitly require that you seek approval from other bathers before adding water to the stones. A sudden burst of steam can be overwhelming for someone who wasn't expecting it, particularly at higher temperatures.

Pour gently. Rooftop Saunas says: "Don't pour water directly onto heater rocks; use gentle ladling technique instead." A controlled ladle, not an upended bucket.

Pause between ladles. Community Sauna Baths asks bathers to "pause between ladles to allow heat to build." The effect is cumulative — give it time.

Only use approved liquids. This means water, or whatever aromatherapy infusion the venue provides. Do not bring your own essential oils. Community Sauna Baths warns that misuse of essential oils on hot stones poses genuine safety risks.

Some venues don't allow it at all. Hotel spas and some leisure centres restrict stone-pouring to staff only. If in doubt, ask.

Leisure Centre Sauna Etiquette

Council-run and chain leisure centres (Better, Everyone Active, GLL) have the most standardised rules. Everyone Active publishes a comprehensive list:

• Must be 16 or over.
• Shower before entering to remove perspiration and deodorants.
• Remove all jewellery, glasses, and contact lenses.
• Sit on a towel at all times.
• Limit session duration — leave if you feel dizzy or nauseous.
• No alcohol or food.
• Don't adjust the controls — only authorised staff can change temperature settings.
• Better limits their sauna and steam cabins to 8 people at a time.

The atmosphere in a leisure centre sauna is typically quieter and less social than a dedicated social sauna. People tend to use them solo, before or after a swim or gym session. Conversation happens but is usually brief — nobody is running a sound bath in the health suite at Streatham Ice & Leisure Centre.

Hotel Spa Etiquette

Hotel spas have the most formal expectations. The key differences from social saunas:

Swimwear is compulsory at all times. No exceptions, no textile-free sessions, no single-sex nudity. ESPA Life at Corinthia specifies swimwear "in the pools, sauna, steam rooms and public areas."

Phones must be off or silent. Claridge's allows phones in changing areas but bans photography of other guests, video calls, and speakerphone. Corinthia requires all devices to be switched off entirely.

Robes and slippers are part of the deal. Hotel spas typically provide them. At Corinthia, anti-slip slippers are mandatory in all wet areas.

Time limits are suggested. Corinthia recommends 10–15 minutes maximum in heat facilities. These are guidelines rather than enforced rules, but the atmosphere discourages the kind of extended sessions you might do at a social sauna.

Arrive early. Corinthia asks guests to arrive up to an hour before a booked treatment. Late arrival may result in a shortened session.

How London Compares

London's sauna etiquette sits in an unusual middle ground. In Finland, where there are three million saunas for 5.5 million people, complete nudity is standard — even between strangers. The Finns have a concept of "sauna peace" (saunarauha): what's shared in the sauna stays in the sauna, and silence is valued. In Germany and Austria, textile-free bathing is mandatory in most public sauna rooms — wearing a swimsuit is the faux pas, not taking it off.

London is neither. Swimwear is the default. Nudity is available but limited to specific sessions at specific venues. The British tendency toward social reserve means you're less likely to strike up deep conversation with a stranger on the bench — though the social saunas are actively trying to change that.

What London does have, uniquely, is range. The city borrows from Finnish tradition (loyly, wooden saunas at Community Sauna Baths), Russian custom (parenie at Banya No. 1 and The Bath House), German ritual (aufguss at Sweheat and Arc), and Turkish heritage (the graduated hot rooms at Porchester Spa). Each brings its own etiquette, and part of the pleasure of London's sauna scene is learning to move between them.

The one thing every tradition agrees on: shower first, sit on your towel, and respect the heat.

Explore all London saunas on the full map.