What to Wear in a Sauna in Europe: Your Guide to Etiquette

The short answer: it depends on the country, not on your comfort level

Treat the map as your packing list. Nordic and German-speaking countries run textile-free saunas where you sit on a towel and nothing else; Britain, Ireland and the Netherlands run swimwear saunas in leisure centres and spas. If you are touring several countries in one trip, a swimsuit plus two towels covers every case, since a swimsuit is acceptable to wear under a towel wrap even where nudity is the norm, and the wider picture of how these rooms are used sits in our guide to sauna etiquette.

Venue type cuts across nationality. A swimming hall sauna in Helsinki and a swimming hall sauna in Manchester are different rooms with different rules, and the sign on the door settles it. Read that sign before you undress, not after.

Why the towel matters more than the outfit

Shared saunas rely on a towel between your skin and the bench, and that holds whether the room is nude or swimwear. Public facilities state it plainly: sit on your towel, and wipe down the bench if the venue provides materials for it. A large bath towel does double duty as a body wrap on the walk between the sauna and the showers.

Bring two towels where you can: one to sit on, one to dry off with afterwards. A thin cotton towel is easier to carry than a heavy bath sheet and dries faster in a hostel bathroom. If you forget, most staffed venues rent or sell towels at reception, so ask before you queue for the changing room.

Expect to shower before your first round and to sit on fabric rather than bare wood, which is why the practical list in our guide to what to bring to a sauna starts with towels rather than clothing.

Finland and the Nordic nude norm: seat towel, showers, mixed saunas

In Finland the sauna is a nude room by default, men and women usually bathing in separate turns or in family groups, with a towel for the bench and for walking to the showers. You shower before your first round, sit on the towel, and expect the door to be plain wood with a small window, not a curtained cubicle. This is the reference point for most of the continent’s sauna vocabulary, and the Finnish sauna is the tradition worth reading up on before you travel.

Sweden, Norway and Denmark follow the same broad pattern in public badhus and badstuer, though mixed sessions are more common in some venues and swimwear is often required in the pool area outside the sauna itself. Take the cue from the people already in the room and from the pictogram on the door. In harbour saunas in Stockholm or Oslo, bathers often wrap in a towel on the pier between rounds, so a robe earns its place in your bag.

Germany, Austria and Switzerland: textile-free rooms and the sauna area rule

German-speaking sauna areas, from municipal Saunabäder in Munich and Vienna to spa complexes in Switzerland, are textile-free zones: you undress at the changing room and wear a towel to the sauna, then sit on it. Swimwear is often not allowed inside the sauna itself, even where the surrounding pool area requires it. The cleanest approach is to follow the signs at the entrance to the sauna zone rather than the pool, and mixed saunas are the default in most of these complexes.

Many German and Austrian venues post a Saunaordnung, a house-rules sheet, at the entrance to the sauna area. It covers textiles, showering, towel use and whether the sauna is mixed. Read it once on arrival and the rest of the visit runs smoothly.

Britain, Ireland and the Netherlands: swimwear is normal, nude is not

In British, Irish and Dutch leisure centres and spas, keep your swimwear on. The sauna is part of the pool circuit, you arrive wet from swimming, and you sit on your own towel on the bench. Nudity in these rooms would be out of place, and mixed sessions are the norm.

The same clothing logic applies as anywhere: loose-fitting swimwear is more comfortable than tight competition kit, because close-fitting Lycra holds heat against the skin. Avoid brand-new synthetic swimwear if you can; a well-washed pair of trunks or a simple one-piece is the practical choice. Shower before entering and take a water bottle in with you.

Estonia, Latvia and Russia: the pirts and banya wardrobe

In Estonia and Latvia the pirts is a family and friends’ bathing tradition, often a private room booked by the hour with a wood-fired stove, a whisk of birch or oak leaves, and a plunge pool or cold shower outside the door. Bathers commonly wear a felt hat to soften the heat and a towel or sheet around the body between rounds. In Russian banya, bathers wear a felt cap and wrap in a sheet or towel, and the room is usually single-sex.

A booked pirts session is a private room, so the dress code is whatever your group agrees; a swimsuit is fine if you are bathing with people you do not know well, and a sheet or towel wrap is standard for the walk to the cold water. Bring flip-flops for the wet floor and a change of clothes for afterwards.

Aufguss and Löyly sessions: what to wear when the heat is thrown

When an Aufguss or Löyly session is announced, the room fills and the door closes; bathers sit on towels in rows, often with a small gap between them, and the Aufguss master throws water and moves air with a towel. Wear nothing but your towel in German and Finnish rooms, keep it under you on the bench, and leave it wrapped around you if you step out for a cool-down. In swimwear countries, keep the swimsuit on and your towel folded on the bench.

Session length is a custom, not a target: Finns usually stay around five to fifteen minutes per round, then cool off and go back in. Aufguss sessions themselves are usually scheduled by the venue and run to a timetable posted at the sauna entrance, so arrive a few minutes early and sit towards the lower benches if you are new to them.

What not to bring: jewellery, phones, synthetic fabrics, heavy scents

Leave metal jewellery in the locker: rings, necklaces and watches heat up against the skin in a hot room. Phones stay outside too, because heat and steam are hard on electronics and nobody wants a camera in a bathing room. Perfume, scented deodorant and strongly fragranced oils carry badly in a small hot space, so apply them after your session rather than before; shared-space guidance on this is consistent across sauna operators.

Clothing matters as much as accessories: heavy layers and tight synthetic garments trap heat, while loose cotton or linen lets air move against the skin. Never wear the kit you trained in; change into clean sauna clothing or your swimsuit before you go in. Those rules are written into gym and swimming-hall house policies, and staff enforce them.

What to pack for a sauna trip: two towels, flip-flops, water, a bag

A sauna trip bag is small: two towels, a swimsuit, flip-flops for the wet floor, a water bottle and a dry bag for afterwards. Add a light robe if you are visiting harbour saunas or walking between buildings in winter. A small towel to dab sweat is useful in a crowded room, and a hair tie keeps long hair off the bench.

Leave a full change of clothes in the locker: a dry cotton T-shirt and trousers for the journey home feel much better than damp swimwear. If you are heading straight on to dinner, pack a plastic bag for the wet kit so the rest of your rucksack stays dry.

Gym and swimming-hall saunas: the house rule overrides the country rule

A gym sauna is its own world, and the house rules on the wall beat the national custom. Many gyms expect a towel on the bench, swimwear or shorts on the body, and a shower before entry; some post a session limit and expect you to leave the room quiet. In an infrared cabin in a fitness club, follow the same clothing rule as the sign says and stay no longer than the posted limit.

Swimming-hall saunas attach to the pool, so the pool’s rules carry over: swimwear on, towel under you, shower first. Where the sauna sits inside the changing area, the venue may post a single-sex or mixed symbol; check it at the door and use the right room.

Single-sex and women-only sessions: what changes

When a sauna runs a women-only or single-sex session, the etiquette changes in one respect: bathers often undress fully where the room is women-only, and a towel wrap is what people wear between rounds. Mixed sessions, in textile-free countries, follow the same towel rule for everyone. Ask at reception which session you are in if the sign is not clear, especially in rented spa areas and hotel sauna zones.

Showers, changing rooms and the walk to cold water

Shower before you enter the sauna: it is the first rule in almost every shared bathing facility, and it keeps the bench clean for the next person. Use the changing room properly, hang your towel where you can reach it, and rinse off between rounds rather than after every one. The walk to a lake, sea or plunge pool is the part travellers underestimate in winter, so carry a towel or robe and wear flip-flops over cold concrete or gravel; how this plays out across the continent is covered in our sauna culture overview.

Children and family sessions

Finnish and Baltic sauna culture includes children, and family sessions are common at weekends in public saunas and at rented pirts. Expect children to come and go, keep voices low, and follow the parent’s lead on how long the youngest stay in the room. Where a venue runs separate family hours, those hours are posted at the entrance alongside the general timetable.

Sauna hats, glasses and contacts: the small kit decisions

A felt sauna hat is practical in a hot room, especially during Aufguss, because it keeps the heat off the top of your head; it is not compulsory anywhere. Glasses steam up within seconds and metal frames get hot, so leave them in the locker unless you need them to navigate; contact lenses are better removed before a long session. If you wear neither comfortably, sit lower and closer to the door.

Plan Your Visit

Pack the swimsuit, take two towels, and read the sign at the sauna door before you undress. That combination works from a Helsinki swimming hall to a Munich Saunabad, a Riga pirts room or a Manchester leisure centre. A robe and flip-flops make the walk between sauna and cold water civilised, and a quick shower before entry is the one universal rule.

One safety line covers every venue: keep water to hand, skip alcohol before bathing, leave the room if you feel unwell, and ask a doctor if you have a heart condition or are pregnant. Where a venue posts its own rules at the entrance, its own site is the place to read them before you book.