Home › etiquette

Kusatsu Onsen in December: Your Guide to Snow, Soaking, and Serenity

Updated September 26, 2026 · Reviewed by auto (grounded facts + verify)

Visiting Kusatsu Onsen in December means experiencing a winter wonderland with a high chance of snow, creating a picturesque backdrop for its famous hot springs. While snow is common, the town remains accessible, offering a unique blend of natural beauty and traditional Japanese relaxation.

Will It Snow in Kusatsu Onsen in December?

Yes, it is very likely to snow in Kusatsu Onsen during December. Snowfall often begins as early as November, and by mid-December, the average snow depth can reach around 7 centimeters [1]. This means you can expect a charming winter landscape, with snow dusting the trees and rooftops, enhancing the serene atmosphere of this mountain onsen town. The town is situated at a significant altitude, 1,200 meters above sea level, which contributes to its colder winter climate and higher probability of snow [22]. This elevated location is a key factor in why Kusatsu experiences winter weather earlier and more consistently than many other popular tourist destinations in Japan. The crisp, cold air, combined with the steam rising from the hot springs, creates a truly magical sensory experience.

Getting to Kusatsu Onsen in December

Traveling to Kusatsu Onsen in December requires some planning, especially considering potential winter weather. While the roads can become icy, making driving less advisable, public transportation is a reliable option.

The most straightforward way to reach Kusatsu Onsen from Tokyo is by direct highway bus. These buses depart regularly from Shinjuku and Tokyo Station and take approximately 4 hours to arrive [5, 7]. The cost for this journey typically ranges from ¥3,500 to ¥4,500 [5]. This option is often preferred in winter as bus operators are experienced in navigating snowy conditions, and it removes the stress of driving on potentially hazardous roads.

An alternative, and often faster, route involves taking a limited express train from Ueno Station in Tokyo to Naganohara-Kusatsuguchi Station. From there, you will transfer to a local bus that completes the journey to Kusatsu Onsen [7]. This train and bus combination can take less than 3 hours [7]. While this involves a transfer, it can be a quicker way to reach the onsen town, especially if you are comfortable with navigating train stations.

For those considering a rental car, it is important to be aware that winter travel in mountainous areas like Kusatsu can involve icy roads [2]. If you do choose to drive, ensure your vehicle is equipped with winter tires, and always check road conditions before you depart. However, for most visitors, the convenience and safety of the highway bus or the train-bus combination make them the recommended choices for reaching Kusatsu Onsen in December.

What to Expect from the Onsen Experience in December

Kusatsu Onsen is famous for its unique hot spring water, and December offers a special way to experience it. The cold winter air makes the warmth of the onsen even more inviting, providing a perfect contrast to the snowy surroundings.

The town's hot spring water is renowned for its high acidity and sulfur content, with a pH of around 2 [8, 14]. This potent water is known for its strong antibacterial properties and is traditionally believed to be beneficial for various skin conditions [8]. When you soak in these mineral-rich waters, you are immersing yourself in a natural remedy that has been cherished for centuries. The feeling of the hot water against your skin after a day spent in the cold can be incredibly therapeutic.

A central feature of Kusatsu Onsen is the Yubatake, or "hot-water field" [9]. Here, geothermal water flows through a series of wooden channels, creating a visually striking and steamy spectacle. In December, the steam from the Yubatake can mingle with the falling snow, creating an ethereal and unforgettable scene. The Yubatake is beautifully illuminated at night, adding to the magical atmosphere of the town.

Browse Kusatsu ryokan & hotel deals on Expedia →

For a truly traditional experience, you can witness "Yumomi" at Netsu-no-yu [12]. This is a performance where local women use large wooden paddles to stir the extremely hot spring water, cooling it down to a comfortable bathing temperature. It's a fascinating cultural display that highlights the town's deep connection to its onsen resources. The Yumomi performance is a lively and engaging way to understand how the onsen water is prepared for public use, and it's a unique cultural activity you won't find in many other places.

When visiting the public onsen facilities, remember to adhere to onsen etiquette. This includes washing your body thoroughly before entering the bath, entering the water nude (swimsuits are not allowed), keeping your towel out of the bathwater, and refraining from running or swimming [20, 21]. These practices ensure a clean and respectful bathing environment for everyone.

Exploring Kusatsu Onsen's Public Bathhouses in Winter

Kusatsu Onsen boasts several excellent public day-trip onsen facilities, and in December, they offer a warm refuge from the cold. Three of the most popular are Otakinoyu, Gozanoyu, and Sainokawara Rotenburo [15, 16, 23]. A significant advantage for many visitors is that these facilities are tattoo-friendly and welcome guests with tattoos without requiring them to be covered [15, 17]. This policy makes them more accessible to a wider range of international travelers.

Each of these bathhouses offers a distinct experience:

• Otakinoyu: This is the largest and most luxurious of the public baths, featuring multiple indoor baths and an outdoor bath (rotenburo) [16, 23]. The entrance fee for Otakinoyu is ¥1,200 [16]. Its extensive facilities provide a comprehensive onsen experience, allowing you to try different pools and temperatures.

• Gozanoyu: Located near the Yubatake, Gozanoyu offers a more traditional atmosphere with several indoor baths [15, 23]. The adult entry fee for Gozanoyu is ¥600 [13]. It typically operates from 7:00 am to 9:00 pm, with the last entry at 8:30 pm [13]. Its central location makes it very convenient to visit.

• Sainokawara Rotenburo: This is an expansive outdoor bath, offering a more natural and open-air experience, surrounded by nature [23]. The entrance fee for Sainokawara Rotenburo is ¥600 [13]. Soaking in this large outdoor bath while surrounded by a snowy landscape can be a truly memorable experience.

These public baths are fantastic for experiencing the therapeutic waters of Kusatsu without needing to stay at a traditional ryokan. They are well-maintained and provide a genuine taste of Japanese onsen culture.

Winter Activities Beyond the Onsen

While the onsen are the main draw, Kusatsu Onsen in December also offers opportunities for winter sports. The Kusatsu Onsen Ski Resort typically opens for the season at the end of December and operates through March [10]. This makes it a viable option for visitors who wish to combine their onsen experience with skiing or snowboarding. The resort offers slopes suitable for various skill levels, providing a chance to enjoy the snowy mountain environment actively.

Even if you're not a skier, the snowy landscape itself is a major attraction. The town's charming streets, the steaming Yubatake, and the surrounding natural beauty are all enhanced by a blanket of snow. You can enjoy leisurely walks, perhaps stopping at local shops for souvenirs or warming up with a hot drink. The crisp winter air and the quiet beauty of a snow-covered town offer a peaceful escape.

Comparing Onsen Options

To help you choose, here's a quick comparison of the main public day-trip onsen facilities:

Remember that while these facilities are tattoo-friendly, it's always a good practice to be mindful of local customs and respect other bathers. The shared experience of the onsen is a cornerstone of Japanese culture.

Preparing for Your December Visit

When packing for Kusatsu Onsen in December, prioritize warm clothing. Layers are key, including thermal wear, sweaters, a warm coat, waterproof gloves, a hat, and a scarf. Comfortable, waterproof walking shoes are essential, as you'll likely be walking around town, and they will be useful on potentially snowy or icy paths. Don't forget any personal toiletries you might prefer, although most onsen facilities provide basic amenities like soap and shampoo.

Bringing a small towel for washing yourself before entering the bath and a larger towel for drying off is recommended, though towels can often be rented at the onsen facilities. If you plan to use the ski resort, ensure you have appropriate winter sports attire.

The combination of snow, the healing waters, and the traditional atmosphere makes Kusatsu Onsen a uniquely rewarding destination in December. It offers a chance to experience the beauty of Japan's winter landscape while indulging in one of its most cherished cultural practices.

Sources

[1] gltjp.com — https://www.gltjp.com/en/article/item/20494/ [2] japan-guide.com — https://www.japan-guide.com/forum/quereadisplay.html?0+179013 [5] visit-gunma.jp — https://www.visit-gunma.jp/en/plan-your-trip/access-guide/how-to-get-to-kusatsu/ [7] selected-ryokan.com — https://selected-ryokan.com/guide/tokyo-ueno-shinjuku-shibuya-ikebukuro-to-kusatsu-onsen-access.html [8] att-japan.net — https://att-japan.net/en/kusatsu-onsen/ [9] peak-experience-japan.com — https://www.peak-experience-japan.com/blog/318 [10] japan.travel — https://www.japan.travel/en/spot/1518/ [12] yumomi.net — https://www.yumomi.net/senshitsusyugi/en/gensen.php [13] navitime.com — https://japantravel.navitime.com/en/area/jp/guide/NTJonry2550004-en/ [14] hotspringsguides.com — https://www.hotspringsguides.com/hot-springs/kusatsu-onsen-japan [15] tattoofriendlyonsen.com — https://www.tattoofriendlyonsen.com/onsen/gozanoyu-onsen [16] tattoofriendlyonsen.com — https://www.tattoofriendlyonsen.com/onsen/otaki-no-yu-onsen [17] tattoo-ja.com — https://tattoo-ja.com/en/blog/kusatsu-onsen-tattoo-friendly-guide-2025 [20] japan.travel — https://www.japan.travel/en/my/story/onsen-in-japan-etiquette-guide/ [21] kashiwaya.org — https://www.kashiwaya.org/e/magazine/onsen/rules2.html [22] mlit.go.jp — https://www.mlit.go.jp/tagengo-db/common/001559340.pdf [23] kusatsuonsen-international.jp — https://www.kusatsuonsen-international.jp/facilitie/