[Hokkaido] When is the Best Time to See the Unkai Terrace? | Day Trip Viewing Information Also Introduced

Unkai Terrace is one of Hokkaido’s most breathtaking scenic spots. This article provides detailed information on the best time to visit and how to experience this natural wonder on a day trip.

Unkai Terrace is a spectacular observation deck located in the Tomamu area of central Hokkaido. Accessible via a gondola from Hoshino Resorts Tomamu, this stunning location offers a mystical sea of clouds—an awe-inspiring natural phenomenon that cannot be artificially created. Its breathtaking beauty has made it a social media sensation, attracting visitors eager to witness this surreal landscape.

If you’re planning to see this incredible view, we’ve got you covered with the best times to visit and how to enjoy Unkai Terrace even on a day trip. Many travelers visit Hokkaido specifically for this experience, so use this guide to plan your perfect trip!

What is Unkai Terrace?

Unkai Terrace was established in 2007 to allow visitors to enjoy the breathtaking sea of clouds (unkai) early in the morning. The terrace features a café, providing a luxurious way to start the day. Even today, it remains a popular attraction for those seeking a serene morning experience.

The spectacular view from Unkai Terrace can be described as “a masterpiece of nature.” Visitors can reach the terrace by taking a gondola from the Hoshino Resort Tomamu Resort Center, which takes about 13 minutes. At an altitude of 1,239 meters, the summit of Mount Tomamu is already above the clouds, offering a completely different world from the foot of the mountain.

"Unkai" (sea of clouds) refers to the phenomenon where clouds form below the observer, creating a vast ocean-like view. The unkai at Tomamu is a result of various geographical factors, including the complex terrain of the Hidaka Mountain Range, the distance from the Pacific Ocean, and the unique topography of Tomamu.

What is the probability of seeing the sea of clouds at Unkai Terrace?

Unkai does not appear every day, as it depends on specific weather conditions. The probability of witnessing the sea of clouds at Unkai Terrace is approximately 30% on average. This means that even if you stay at Hoshino Resort Tomamu, there is no guarantee that you will see the unkai on your visit.

Best Season to Visit Unkai Terrace

Unkai Terrace offers breathtaking views all year round, whether or not a sea of clouds (unkai) forms. On clear days, visitors can admire the beautiful mountains of Tomamu. However, most travelers visit in hopes of witnessing the mystical unkai. The best chances to see this natural phenomenon depend on specific conditions, including season and time of visit.

Unkai typically forms from spring to autumn, with the season lasting from May to mid-October. It does not appear in winter. Therefore, the best season to visit Unkai Terrace is from spring to autumn. Additionally, early morning offers the highest chances of seeing the sea of clouds, so be prepared for an early wake-up.

Below, we introduce the best times and seasons for experiencing unkai at its finest.

Best Time: Summer Unkai

One of the best seasons to visit Unkai Terrace is August, during the summer. While Tomamu’s snowy mountains are famous in winter, the summer landscape transforms into lush greenery, creating a unique contrast. If you're lucky, you can witness the unkai floating over the vibrant green mountains, offering a surreal and picturesque view.

Unkai Terrace features six viewing decks, each providing a different perspective. Highlights include:
• Cloud Walk – A bridge-like pathway above the clouds.
• Cloud Pool – A relaxing hammock-style viewing spot.

Each observation deck offers stunning panoramic views, ensuring a memorable experience.

Even in summer, mountain temperatures can be quite cool, so bringing a jacket or warm clothing is recommended to stay comfortable.

Unkai Terrace in Autumn: Best Views in the Early Morning

The best season to witness the spectacular sea of clouds at Unkai Terrace is during the early mornings of autumn, particularly from September onward.

As autumn progresses, the sunrise occurs later each day, creating the perfect conditions to enjoy both the morning glow and the mesmerizing sea of clouds. Watch as the sun rises from the horizon of clouds, gradually painting the sky and mist in shades of red. Additionally, the golden foliage of Mt. Tomamu during autumn offers a breathtaking view that can only be experienced in this season.

However, autumn at Unkai Terrace is significantly colder than in summer. Early mornings, in particular, can be freezing, so it is highly recommended to wear warmer-than-usual clothing to stay comfortable.

Is Unkai Terrace Accessible for a Day Trip?

Wondering if you can visit Unkai Terrace on a day trip? Here’s how to get there. Your main destination should be Hoshino Resort Tomamu, a luxury resort that serves as the base for Unkai Terrace.

If you plan to stay overnight, you can access the resort by car or train, and airport shuttle services are available for guests.

For those driving, the nearest expressway exit is Tomamu IC. If you're coming from New Chitose Airport, the drive takes approximately 1 hour and 30 minutes. Renting a car from the airport is the most convenient option.

For overnight guests, you’ll need to head to Unkai Gondola Base Station early in the morning. The gondola operates from around 4:30 to 5:00 AM (schedule varies by season). A shuttle service is available from the hotel, or you can walk to the station as it’s within a reasonable distance.

However, if you’re visiting for a day trip, please note that public transportation (such as trains) does not operate early enough to reach Unkai Terrace in time for the morning views. To experience the sea of clouds, it’s best to travel by car and arrive before dawn.

https://maps.google.com/maps?ll=43.077074,142.598892&z=12&t=m&hl=ja&gl=JP&mapclient=embed&cid=14105067874371385855

◎ Unkai Terrace: A Must-See Scenic Spot in Hokkaido

In this guide, we introduce detailed information about Unkai Terrace, one of the most breathtaking natural attractions in Hokkaido. Among the many scenic spots in the region, the sea of clouds at Unkai Terrace is a mesmerizing sight that travelers should not miss.

Although the chances of witnessing the sea of clouds are not very high, those who are fortunate enough to see it will be left in awe by its overwhelming beauty. However, even if the clouds do not appear, the panoramic view of the Tomamu mountains remains spectacular, making the visit worthwhile.

Unkai Terrace is one of Hokkaido’s top scenic destinations, offering a surreal experience in the clouds. If you are planning a trip to this stunning location, be sure to use this guide for helpful insights.

Search

Customer Support

[Hokkaido] When is the Best Time to See the Unkai Terrace? | Day Trip Viewing Information Also Introduced