Best Sauna in Helsinki

In a way, yes. Finland has been ranked among the world’s happiest countries for years, and many Finns would argue that the sauna plays a part in that. It’s more than just a place to get warm. It’s a way of life. A place where the stress of the day melts away and you emerge fresh as a newborn.

A sauna in Finland is as important as a shower.

In the past, when people built houses, they always built a sauna first, and then the house. It was the warmest, cleanest, most hygienic place available, so families used it for everything: washing, relaxing, healing, even giving birth.

Today, the tradition continues.

For many Finns, the goal in life isn’t just to own a sauna, but two: an electric sauna inside the house, and a wood‑heated one outside.

• The electric sauna is practical and safe to keep indoors, but the heat feels different. It’s typically drier and more predictable.
• The wood-heated sauna is the traditional version. The heat feels softer, the scent of burning wood fills the air, and the whole experience feels more authentic. Because of the fire risk, these saunas are usually built away from the main house.

For most saunas, unless stated otherwise, you’ll want to bring slippers, a small towel to sit on, a regular towel, and possibly a swimsuit. Keep in mind that some saunas require swimwear while others do not allow it, so it’s always worth checking the rules in advance. If permitted, you may also want to bring your own beer to enjoy after the sauna.

This guide rounds up six contenders for the best sauna in Helsinki, ranging from sleek architectural saunas and traditional local favorites to free DIY community saunas by the sea. While there’s no single sauna that’s best for everyone, these are the public saunas that stand out most for their experience, setting, and local appeal.

Löyly is the most polished sauna experience you can get in Helsinki.

You can experience not only wood-heated saunas, but also a smoke sauna, which is pretty rare in modern facilities. On top of this, it’s located right by the Baltic sea, so you can cool down between sessions.

The building itself is a striking piece of modern architecture. It’s clear that a lot of effort has gone into the design, both inside and out.

It has become one of Helsinki’s most popular experiences for tourists. During the summer months, reservations can fill up weeks in advance, as the number of visitors is capped.

During my visit in early September, I was lucky enough to get a spot without booking in advance.

After chatting with some of the other visitors, it became clear that most were tourists. You could also tell when someone threw water on the stove. The Finns barely reacted, while some the tourists suddenly looked as if they were questioning every decision that had led them to that moment. Others made a swift exit.

But don’t worry. There are several seating levels, each offering a different intensity of heat, so it’s easy to adjust the heat when needed.

What It Offers

What Löyly offers is basically:

• Several wood‑heated saunas
• A smoke sauna (rare in modern facilities), although just half-smoke
• There’s also a private sauna which can be rented hourly
• Direct access to the sea for cooling off
• An in-house restaurant serving great salmon soup (a dish every tourist visiting should try at least once)

Know that it’s not a naked sauna and it’s mixed, so bring your swimming suit. You’ll get a sitting towel and a normal towel when entering the facilities.

The thing missing here is the vasta, a bundle of fresh birch branches used to gently whack yourself and your friends in the sauna. It’s good for the skin.

Who Should Visit

If you’re visiting Helsinki for the first, and not used to saunas, this is probably the most polished introduction to the lifestyle of a Finn.

Price: €29 for two hours.

It’s not cheap, but the location, design, and overall experience make it worth the price, especially for visitors who don’t sauna regularly. If you’re a sauna enthusiast looking for a more traditional experience, the next sauna on this list might be a better fit.

Kotiharjun Sauna is Helsinki’s most authentic public sauna. Built in 1928, it still operates much as it did nearly a century ago, with some original parts still intact.

In the past, Kotiharju was an important gathering place for the local working class, back when private showers and saunas were uncommon in Helsinki homes. Today, it remains a wonderfully raw and authentic venue with a strong local character.

The sauna itself is impressively large. Nearly four meters high, it can probably accommodate around 30 bathers at a time.

One of Kotiharju’s most distinctive traditions stems from the sauna’s large design. The stove sits on the ground floor, while those seated on the top bench are the ones who decide the amount of steam in the room.

That limitation has created an interesting custom by the regulars.

The person on the top bench who’s closest to the stove decides the number, but the answer is never given lightly. There’s often a moment of reflection before they announce how many ladles of water they can possible take. After all, according to an unwritten sauna rule, if you’re the one responsible for the heat, you’re expected to stay and endure it with everyone else, and it’s going to be the worst for you.

The person then throws exactly that number of ladles of water onto the stove before taking their seat or leaving the sauna.

If more steam is wanted later, someone simply calls out:

“Lisää löylyä!” — “More steam!”

Whoever is closest to the stove continues the ritual with “Montako?” — How many ladles?

Between sessions, people sit outside on the street benches, cooling off, chatting, drinking beer and watching the neighborhood go by.

Kotiharjun sauna is very popular with locals, and with some tourists as well. Especially the Japanese, according to the staff, some Japanese tourists head straight here from the airport after landing without even passing by their hotels.

Some Things to Know Before Your Visit

Men and women use separate saunas:

• Men: First floor
• Women: Second floor

Both sides are naked saunas.

Bring a towel, a seat towel, slippers, and your own beer. Kotiharjun provides a fridge for visitors, making it perfectly normal to bring your own drinks. They also sell beer, but only light beer (2.7%).

Entrance costs €16.

Kulttuurisauna is a quiet, design‑driven sauna on the waterfront, built around minimalism and calmness. It’s the opposite of the loud, social neighbourhood sauna like Kotiharjun Sauna. Here, the atmosphere is intentionally serene. They have a keep‑silent policy, which makes it ideal for travelers who prefer peaceful spaces and a more meditative sauna experience.

Men and women are separated, and it’s a naked sauna, following traditional Finnish public‑sauna etiquette. Keep in mind that large groups aren’t allowed, so it’s best to visit in pairs or alone.

Bring a towel, a seat towel, bottle for water and slippers. No alcoholic drinks are allowed.

Some days are reserved for walk-ins, while others require advance reservations. Be sure to check the website before your visit.

Prices start at €17 per adult.

This is the most absurd sauna experience you can have in Helsinki, a fully functioning sauna cabin inside a Ferris wheel.

Prices start at around 240 EUR for the first hour, the following hours are 50% off, there’s space for up to four people, and rates are higher on weekends. There are showers behind the wheel and even a palju (a kind of a hot tub) for keeping the warmth between rounds. Two alcoholic beverages per person is included as well.

It’s expensive but perfect if you want to have a story to tell afterwards.

Right next to the Ferris wheel is Allas Sea Pool, a waterfront complex that combines traditional saunas with heated pools and a sea water pool. It’s easy to reach, beginner‑friendly, and great if you want a mix of sauna and swimming without leaving the city center.

Prices start from €19 per adult for three hours.

Lastly, Helsinki’s most legendary free public sauna is Sompasauna. It’s a community‑run, DIY sauna by the sea that feels more like a social experiment than a commercial facility. Everything here is built and maintained by volunteers.

There are usually two saunas, often around 80°C and 90°C, both properly hot. The vibe is friendly and free‑spirited. Many Finns sauna naked, and Sompasauna leans into that hippie‑nudist energy. Expect mixed gender and mixed crowd, locals, travelers, sauna enthusiasts, and a very open atmosphere.

Nudity is of course optional, and plenty of visitors wear swimsuits, so you won’t stand out either way.

Despite being free, Sompasauna even offers lockers, so you just need to bring your own lock. Facilities are extremely basic: no toilets, no showers, no dressing rooms, and the floors often get sandy and wet from people coming straight from the beach. It’s part of the charm.

It’s open 24 hours every day, but if you go during odd hours you might be the one who needs to start the sauna yourself.

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Which Helsinki Sauna Is Right for You? A Quick Guide

If you have trouble choosing the right sauna for you, here’s the simplest way to pick the right one for your Helsinki visit:

• Want something modern and easy? Go to Löyly, but book in advance.
• Looking for the most authentic neighbourhood sauna? Head to Kotiharjun Sauna.
• Prefer calm, silence, and minimalist design? Choose Kulttuurisauna, booking might be needed. Know that large groups are not accepted.
• Want a wild, free, communal experience? Try Sompasauna (24/7, DIY, nudity optional).
• Need something central and family‑friendly? Allas Sea Pool is your best bet.
• Want the most unusual sauna in Helsinki? Book the sauna in the Ferris wheel.

Keep Exploring Helsinki

Marked down the saunas that caught your eye? Continue planning your trip with my 2-Day Helsinki Itinerary, discover the best budget-friendly neighborhoods in the city with my guide Cheap Stay Helsinki, and find out if Suomenlinna is worth visiting.