Sauna Day (Sauna no Hi)

What Is Sauna Day?

March 7 each year is "Sauna Day," established by the Japan Sauna and Spa Association (a public interest incorporated association). The date comes from a wordplay reading 3 as "sa" and 7 as "una," forming "sauna." The day aims to spread knowledge of how to enjoy saunas properly and to help people unwind from everyday fatigue. The association's predecessor, the Japan Sauna Association, is also said to have designated a "Sauna Health Day" in 1984. Today, the day draws crowds of people—from young people to business professionals—seeking the "totonou" (a state of being perfectly balanced and refreshed) experience.

A Short History of the Sauna

Saunas have long served as more than just a place to bathe—they have been part of daily and social life for centuries.

• The Finnish tradition: Saunas are generally said to have originated in Finland, with a history of more than 1,000 years. Finnish sauna culture was added to UNESCO's Intangible Cultural Heritage list in 2020, and it is said that Finnish homes are sometimes designed around the sauna.
• Spread in Japan: Japan's first sauna facility is said to be "Tokyo Onsen," which opened in Ginza in 1951. The sauna that the Finnish team brought to the athletes' village at the 1964 Tokyo Olympics is also often cited as one reason saunas became better known.

Interesting Facts About Saunas

• The benefits of löyly: Pouring water over heated sauna stones to create steam—known as "löyly"—is a Finnish bathing technique that raises the humidity and the perceived temperature in the room.
• The role of the sauna hat: A sauna hat prevents your head from overheating and protects your hair from the heat; in recent years it has become both a fashion item and a practical one.
• The aroma of vihta: The custom of tapping the body with a "vihta" (a bundle of birch branches and leaves) is a Finnish tradition, and the birch scent that fills the room is part of the enjoyment.
• "Sauna meals": Meals after a sauna are nicknamed "sa-meshi," and some people visit a facility just for its signature dishes. After sweating, be sure to rehydrate first.
• Free entry for 37-year-olds: On Sauna Day, member facilities of the association have held date-themed events such as inviting guests aged 37 and one companion to use the sauna for free.

Finding Calm Like Quiet Snowfall

Sauna Day is a day to step away from the noise of daily life and reconnect with your own body. The refreshed feeling after cycling through the hot room, cold bath and outdoor rest is what many sauna fans call "totonou." On March 7, why not sweat away accumulated stress and let in some fresh perspective—preparing yourself to move forward more clearly and positively?

Tips for Making the Most of Sauna Day

• Visit your favorite sauna facility and enjoy the full cycle of sauna, cold bath, and outdoor rest for the ultimate "totonou" experience
• Savor a delicious "sauna meal" afterward, taking in the flavors with all your senses
• Brush up on proper sauna etiquette so that you—and everyone around you—can enjoy the experience comfortably
• Skip the sauna when you feel unwell or have been drinking, and drink water regularly to stay safe

A Clear Mind Leads to the Best Answers

March 7 is a day to shed what you no longer need and rediscover your natural brightness. Just as your body warms up and tension melts away, may your mind find a little more room to breathe. May today be a day when you feel completely "totonou"—reset in both body and mind—as you welcome the new season ahead!