What It's Actually Like Inside an Old Japanese House in Winter
Picture this: you wake up at 6am, your breath is visible as a small white cloud, and the wooden floorboards are ice cold even through your socks. That's winter in a kominka. These traditional houses were built with ventilation and summer heat in mind, not insulation against sub-zero temperatures. The thin wooden walls, shoji screens, and elevated floors that make them so photogenic in autumn become real problems by December.
What most people don't know is that many kominka have no central heating whatsoever. Historically, Japanese households managed winter with a kotatsu, a low table fitted with an electric heating element underneath, covered by a thick futon blanket. You sit around it, legs tucked inside, and honestly, it works surprisingly well. My tip? If you ever stay in a traditional house during winter, claim your kotatsu spot early in the evening. You won't want to leave it.
Speaking of which, the kotatsu is a great piece of Japanese vocabulary to know. The kanji is written 炬燵 (romaji: kotatsu), and it shows up in Japanese slice-of-life media constantly, from Studio Ghibli scenes to everyday manga. It's practically a cultural symbol of Japanese winter comfort.
Rooms That Don't Warm Up
To be fair, some rooms in a kominka do get warm. The kitchen, anywhere near a portable kerosene heater (known as a sekiyu hiita, 石油ヒーター), or the bathroom if you're lucky enough to have an updated one. But the rest of the house? It stays cold. Bathrooms in older Japanese homes are famously unheated, and this is actually a documented health issue in Japan. The sudden temperature change between a warm room and a freezing bathroom can cause a spike in blood pressure, a phenomenon the Japanese call hiyari-hatto (ヒヤリハット) in safety contexts, though for home hazards, the term netsu shock (ヒートショック, hiito shokku) is used specifically.
Every year, thousands of people in Japan are hospitalised due to heat shock from this exact situation. The number cited by Japan's Consumer Affairs Agency in recent years sits around 17,000 annual deaths related to bathing accidents in winter, many linked to unheated bathrooms in older homes. That's not a small figure. Classic Japan, isn't it? Beautiful aesthetics with very practical consequences.
The Daily Routine: Warmth Is Something You Work For
Ever wondered why Japanese people seem so comfortable with layering clothing indoors? A winter in a kominka explains it immediately. You wear your indoor clothes, then your house cardigan, and sometimes a hanten (袢纏), a padded short jacket traditionally worn at home during cold months. It's not laziness or fashion; it's survival.
Mornings are the hardest part. Getting out from under the futon, which has been keeping you warm all night, into a room that might be 4 or 5 degrees Celsius indoors requires a specific kind of mental preparation. That's why the morning ritual in a traditional Japanese household often centres around quickly getting the kotatsu on, boiling water for お茶 (ocha, tea), and staying in the warmest room until the sun has had a chance to do something useful. The word for this slow, warm morning pace has a lovely feel to it: yukuri (ゆっくり), meaning slowly or without rush. It fits.
Heating Solutions Then and Now
Historically, the irori (囲炉裏) was the heart of the Japanese winter home. This is an open hearth built into the floor of the main room, used for cooking, heating, and gathering. You'll still see them in very old farmhouses, particularly in regions like Gifu or Nagano where minka-style architecture is preserved. Today, they're mostly decorative or found in traditional restaurants and ryokan.
Modern kominka residents tend to rely on a combination of portable kerosene heaters, air conditioning units (which also heat), and the ever-reliable kotatsu. Some houses have been partially renovated to include insulation in the walls, but purists and budget-conscious residents often live with the original structure as-is. That means adapting your daily routine rather than adapting the house. Sounds good, right? Well, it depends heavily on how much you love the aesthetic.
The Charm That Keeps People Coming Back
Here's the thing: despite all of the above, people actively seek out kominka living. There's a growing movement in Japan of urban dwellers relocating to rural areas and restoring old farmhouses, often through municipal programmes that offer abandoned homes for extremely low prices or even free. These are listed on databases like the Akiya Bank (空き家バンク, akiya banku), where akiya (空き家) simply means empty house.
What I especially like about this whole phenomenon is that it forces a reconnection with the rhythm of the seasons in a way that a modern apartment simply doesn't allow. You feel winter in a kominka. The smell of kerosene, the sound of wind through imperfectly sealed shoji frames, and the ritual of layering up before crossing into the hallway. It's tactile in a way that no amount of travel photos can communicate properly.
The YouTube video that inspired this piece captures exactly that tension between discomfort and atmosphere. Watching someone go about their actual winter morning in a traditional Japanese house, complete with frozen pipes and a kotatsu breakfast, is oddly more compelling than most Japan travel content out there. Personally, I think it's because it's honest.
Quick detour: if you're learning Japanese and want vocabulary that actually comes up in daily life contexts like this, winter words are a good place to start. 寒い (samui, cold) means cold, 冬 (fuyu, winter) is winter, and 暖かい (atatakai, warm) means warm. You'll hear all three constantly in any Japanese drama set in winter. But let's stick with the kominka experience for now.
Frequently Asked Questions
Are traditional Japanese houses really that cold in winter?
Yes. Kominka were built primarily for summer ventilation and offer very little insulation. Indoor temperatures in unheated rooms can drop close to outdoor temperatures, especially at night in regions like Tohoku or the Japan Alps.
What is a kotatsu and do people really use it daily?
A kotatsu (炬燵) is a low table with a built-in heater and a thick blanket draped over it. Yes, Japanese households still use them daily in winter. They're practical, energy-efficient, and deeply embedded in daily winter culture.
Can foreigners buy or rent a kominka in Japan?
It's possible, though there are legal and bureaucratic steps involved. Japan's Akiya Bank system lists vacant traditional homes, sometimes at very low cost, particularly in rural areas facing depopulation. Some municipalities actively welcome foreign residents as part of revitalisation efforts.
