A Cool Guide to Enjoying Japan's Hot Summer

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Written by GOOD LUCK TRIP

Summer in Japan is filled with delightful events and activities such as fireworks, festivals, and shaved ice. However, the climate can be quite hot and humid, making it challenging to enjoy.
This article introduces cool spots and recommended summer retreats where you can enjoy Japan's hot summer in comfort.
Additionally, it highlights unique Japanese ways to stay cool and cultural experiences to try during the summer.
By reading this guide, you'll be able to enjoy the summer just like the locals, so please read on until the end.

Table of Contents

Japan’s Hot and Rainy Summer

Japan experiences four seasons: spring, summer, autumn, and winter. Generally, summer spans from June to August.
This season is the hottest of the year, characterized by high temperatures and humidity.
Here's a summary of Tokyo’s average monthly temperatures, humidity, and rainfall during the summer months.
As the table shows, temperatures start to rise in July, and the entire country experiences hot and humid conditions.
Due to global warming, it's not uncommon for temperatures to exceed 30 degrees Celsius, with some regions even surpassing 40 degrees.
During the day, the sun can be very intense, making it essential to take precautions against UV rays and heatstroke by staying hydrated.
Another notable feature is Tsuyu, the rainy season, which typically occurs from early June to mid-July.
This period is marked by continuous clouds and rain, with significant temperature fluctuations, making it uncomfortable even for the Japanese.

June July August
Average temperatures (℃) 23.2 28.7 29.2
Humidity (%) 80 72 78
Rainfall (mm) 167.8 156.2 154.7

Recommended Ways to Enjoy Nature and Activities in the Hot Summer

Even in the hot summer, there are ways to stay cool while enjoying nature.
Here are some recommended spots and activities that let you experience the best of Japanese summer.
Some of these experiences are unique to this season, so be sure to include them in your travel plans.

Experience Japanese Tradition and Culture! River Activities to Try in Summer

For centuries, the Japanese have devised various ways to beat the heat.
One traditional and cultural practice is relaxing by the riverside during summer.
Japan offers many unique activities that let you enjoy the ambiance while staying cool.
Here are some of the best river activities to try.

Enjoying Cuisine and Scenery on a Traditional "Yakatabune" Houseboat

A Yakatabune is a traditional Japanese boat equipped with a roof and tatami mat seating, where you can enjoy meals and drinks.
Originating from the leisure activities of Heian period (794-1185) nobles, it has been a popular way to cool off in the summer for centuries.
Think of it as a Japanese version of a cruise or sightseeing boat.
The charm of a Yakatabune lies in enjoying gourmet food while taking in the cityscape and famous sights from the water.
Sipping beer while feeling the sea breeze and watching the sparkling night view offers a unique Yakatabune experience.
These boats operate all over Japan, from Otaru in Hokkaido in the north to Kyushu in the south, each offering its unique atmosphere.
Tokyo, in particular, has many Yakatabune operators, with courses touring the traditional downtown areas of Asakusa and Tsukishima, making it perfect for summer.
During fireworks festivals like the Sumidagawa Fireworks Festival and the Koto Fireworks Festival, these boats become ideal spots for viewing the displays, offering a luxurious way to enjoy the spectacle.

Watching fireworks from a Yakatabune will give you a profound sense of traditional Japanese charm.
Watching fireworks from a Yakatabune will give you a profound sense of traditional Japanese charm.

Experience Nature with All Five Senses While Enjoying Kaiseki Cuisine on a "Kawadoko"

Kawadoko refers to outdoor seating areas set up by restaurants in places with a good view of a river or garden.
Known by various names depending on the region, such as Noryodoko or simply Yuka, these seating areas are typically open from May to September.
Dating back to the early Edo period (1603-1868), Kawadoko remains a beloved summer tradition in Kyoto. The appeal of Kawadoko lies in the refreshing, immersive experience of nature it provides.
The seats are close to the water's surface, allowing diners to be soothed by the sounds of the flowing river, gentle breezes, and the greenery of the surrounding mountains, creating a slightly sophisticated summer experience.
The entire setting is imbued with Kyoto's unique charm, offering a sensory delight through traditional hospitality.
Each area has its own distinct features, so you can choose according to your preferences.

Kibune Area
Surrounded by nature, this area boasts a picturesque townscape where you can savor authentic Kyoto cuisine.
Kamogawa Area
With excellent access from the city center, this area offers a variety of restaurants, making it easy for beginners to visit.
Takao Area
Known for its cooler average temperatures and covered seating, which is perfect for rainy days. From June to July, you can also enjoy viewing fireflies, a natural monument.
The riverbed dining area in the Kibune region allows you to experience nature with all five senses.
The riverbed dining area in the Kibune region allows you to experience nature with all five senses.

Enjoy the Thrill and Scenic Beauty of "River Rafting"

River rafting involves navigating from the upstream to downstream sections of a river using a small boat, rubber raft, or kayak.
There are various styles and names for this activity, such as "line rafting" and "rafting" (when crew members use paddles to steer the boat).
Typically, river rafting refers to riding in a traditional Japanese boat operated by a boatman, where you can enjoy the surrounding scenery and the thrill of overcoming big waves.
The boatman's skillful navigation and the changing landscapes formed by natural rock formations are highlights of the experience.
Rafting, on the other hand, is characterized by its emphasis on direct interaction with nature and teamwork, making it a more hands-on adventure.
Notable spots include the beautiful gorges of Kinugawa Line Kudari in Tochigi Prefecture and the thrilling rapids of Hozugawakudari River Boat Ride.

If you enjoy the thrill and the scenery, you will forget the summer heat.
If you enjoy the thrill and the scenery, you will forget the summer heat.

Enjoying the Sea in Japan During Summer

When it comes to summer leisure in Japan, the sea is a must.
While simple activities like swimming, watermelon smashing, and playing on the sandy beach are fun, why not try some exciting marine activities?
From diving, snorkeling, and surfing to the new sensation of stand-up paddleboarding (SUP), there are plenty of marine leisure activities to choose from.
With many new activities emerging, you can find options that suit your budget and interests.
For a full experience of swimming and marine activities, Okinawa Prefecture with its emerald blue sea and white sandy beaches is a top choice.
Popular spots include Miyako Island and Kume Island.
Other recommended beaches are Jodogahama in Iwate Prefecture, Moriya Beach in Chiba Prefecture, and Takenohama Beach in Hyogo Prefecture.

Relaxing and enjoying a swim at a beautiful beach is highly recommended.
Relaxing and enjoying a swim at a beautiful beach is highly recommended.
Try out marine activities like stand-up paddleboarding (SUP) for some casual fun.
Try out marine activities like stand-up paddleboarding (SUP) for some casual fun.

Recommended Waterfalls to Cool Off and Enjoy the Grandeur of Nature

Waterfalls are another excellent spot to visit in the summer.
Surrounded by lush nature, you can enjoy a refreshing break while soaking in plenty of negative ions.
Witnessing the powerful drop and spray of the water up close can be both calming and invigorating.
Each viewpoint offers different sounds and views of rocks and moss, making it a personal and unique experience.
Many waterfall locations also offer additional activities like hot springs, hiking, and dining, adding to their appeal.
Japan is home to over 2,500 waterfalls, with famous ones including Kegon Falls in Tochigi Prefecture, Fukuroda Falls in Ibaraki Prefecture, and Nachi Falls in Wakayama Prefecture, known as Japan's three great waterfalls.
Look up attractive waterfalls near your travel destination and include them in your itinerary.

Japan is home to numerous waterfalls, including Kegon Falls, one of the country's three most famous waterfalls.
Japan is home to numerous waterfalls, including Kegon Falls, one of the country's three most famous waterfalls.

Explore Caves and Enjoy Natural Artistry

Stalactite caves are natural art forms created over long periods as water erodes limestone.
The stalactites hanging from the ceiling and the stalagmites rising from the floor transform into various shapes, showcasing a mysterious beauty.
The cool, air-conditioned-like environment inside the caves is a great relief from the summer heat.
Japan has many unique stalactite caves, each with distinct features.
For example, Toma Stalactite Cave in Hokkaido, formed about 150 million years ago during the Jurassic period, is known for its diverse stalactites.
Ryusendo Cave in Iwate Prefecture maintains a cool temperature of around 10 degrees Celsius throughout the year, making you forget about summer. The cave features stunningly clear blue underground lakes and is illuminated in a fantastical manner, offering plenty of highlights.
These caves offer an adventurous and otherworldly experience, making them a great addition to your travel plans.

Enjoy the beauty of natural formations in the cool environment of stalactite caves.
Enjoy the beauty of natural formations in the cool environment of stalactite caves.

Enjoy Rain or Shine! Indoor Facilities to Add to Your Summer Travel Plans

Japan's summer often brings rain, so having indoor facilities where you can play without worrying about the heat or weather is quite useful.
These spots not only offer hours of entertainment but also have plenty of options where both kids and adults can enjoy together.
Here are some recommended facilities along with specific spots to consider. Use this information as a reference when planning your trip.

Enjoy "Karaoke" Anytime, Anywhere

Karaoke in Japan features clean rooms and a wide variety of food options.
It's also a great way to take a short break during your travels.
Besides karaoke, complex facilities like Round1 offer additional activities such as darts and bubble soccer.
Here are some famous karaoke chains in Japan.
In entertainment districts, you'll find many karaoke places, so you can choose one based on your travel companions or your mood at the time.

Major Karaoke Chains

Big Echo
・ A well-known and trusted major karaoke brand.
・Offers spacious, clean rooms with excellent soundproofing, providing services worth the price.
Karaokekan
・ Well-balanced overall.
・ Features unique rooms like dual monitor rooms and first-class rooms.
Karaoke Manekineko
・ Boasts over 630 locations, the largest in Japan, known for its affordability and cost performance.
・ Generally allows bringing your own food and drink, making it enjoyable for other purposes as well.
PASERA
・ Provides a relaxing atmosphere with a Bali resort theme.
・ Offers well-equipped facilities, including kids' rooms and free amenities.
Jumbo Karaoke Hiroba
・ Popular in western Japan with 180 locations, known for its low prices.
・ Extensive drink plans include over 100 types and free ice cream.
If you love karaoke or J-POP, be sure to experience karaoke in Japan.
If you love karaoke or J-POP, be sure to experience karaoke in Japan.

"Shopping Malls and Outlets" for All-Day Shopping Enjoyment

For a fulfilling shopping experience, "shopping malls and outlets" are perfect destinations.
Shopping malls, which bring together domestic and international brands and stores, offer a wide selection of items to suit your taste.
On the other hand, outlets, with their many direct-operated stores of manufacturers and brands, provide the opportunity to purchase high-quality products at discounted prices.
Some facilities even have duty-free shops, making your shopping experience even more economical. Here are some of the top shopping malls and outlets across the country.
If you are traveling to one of these prefectures, be sure to include them in your itinerary.

Major Shopping Malls and Outlets

Gotemba Premium Outlets (Shizuoka Prefecture)
・Features approximately 290 stores, as well as hotels, hot springs, and amusement parks, making it a unique outlet.
・Offers stunning views of Mt. Fuji right in front of you, allowing you to enjoy nature while shopping.
Kobe-Sanda Premium Outlets (Hyogo Prefecture)
・Boasts the largest retail space in Western Japan, with a beautiful, sophisticated townscape modeled after Pasadena, a suburb of Los Angeles.
・Offers a wide range of dining options, including Japanese, Western, and Chinese cuisines.
Mitsui Outlet Park Iruma (Saitama Prefecture)
・Hosts over 200 diverse shops, including about 40 stores making their first appearance in Japan.
・With many covered walkways, it's a comfortable place to visit even on rainy days.
Enjoy a full day of shopping at malls and outlets that offer a wide variety of stores across different genres.
Enjoy a full day of shopping at malls and outlets that offer a wide variety of stores across different genres.

"Aquariums" Where You Can Enjoy with Anyone and Forget the Summer Heat

The great thing about aquariums is that you can observe sea creatures directly without being affected by the weather.
You can watch fish swim from various angles, and the dim lighting inside creates a mystical atmosphere. As the term "aqua therapy" suggests, water and fish have a calming effect, and simply walking around can bring a sense of peace.
The biggest attraction is undoubtedly the dolphin and sea lion shows.
Their cute appearances, synchronized performances with trainers, and the splashes of water after their jumps provide a refreshing sensation, perfect for the hot summer.
Aquariums are fun for families, couples, and groups of friends, making them a great place to create happy memories.
Japan has many aquariums with unique events and creatures that can't be seen anywhere else.

Aquariums are perfect not only for family fun but also as ideal date spots.
Aquariums are perfect not only for family fun but also as ideal date spots.

"Art Galleries and Museums" to Enhance Your Sensitivity with Art, Culture, and History

Although art galleries and museums are often associated with autumn, they are also great to visit in summer.
You can relax in air-conditioned rooms, escape the hustle and bustle of daily life, and find peace of mind. Art galleries offer the opportunity to cultivate creativity and expressiveness through various eras and works of art from around the world.
Museums, on the other hand, allow you to explore cultural and historical resources through natural history exhibits and scientific discoveries.
Both provide visitors with new discoveries and inspirations, enriching their minds with education and diversity.
Make good use of audio guides and explanatory panels to deepen your understanding of the exhibits.

While traveling in Japan, take the opportunity to engage with art and stimulate your senses.
While traveling in Japan, take the opportunity to engage with art and stimulate your senses.

"Planetariums" to Enjoy the Night Sky Regardless of Weather or Time

Gazing at the summer night sky is a must-do event, no matter where you travel.
The night sky offers different expressions depending on the weather and climate conditions, adding a romantic and exhilarating touch.
The sight of countless shining stars, especially the Milky Way from June to August, along with the Summer Triangle and the Big Dipper, creates a spectacular view.
However, for those who can't fit stargazing into their schedule or prefer indoor activities, visiting a planetarium can be a great addition to your travel plans.
Planetariums allow you to enjoy various night skies, complete with explanations, in a comfortable environment.
Japan ranks second in the world for the number of planetariums, following the United States, and each facility offers unique attractions to enhance your experience.

Enjoy the summer night sky at a planetarium for a relaxed and delightful experience.
Enjoy the summer night sky at a planetarium for a relaxed and delightful experience.

Indoor Theme Parks for All Ages

Japan boasts numerous indoor theme parks worth visiting.
These parks can be enjoyed year-round, not just in summer or on rainy days.
For example, Tokyo Joypolis in Tokyo, one of the largest indoor theme parks in Japan, offers futuristic VR attractions combining digital and real experiences.
Sanrio Puroland in Tokyo, known for its captivating shows and events, immerses you in the world of Hello Kitty and Cinnamoroll.
For a hands-on experience, Toei Kyoto Studio Park in Kyoto lets you dress up as a ninja and explore. Opening in 2024, Little Universe OKINAWA in Okinawa is a new hybrid entertainment facility attracting attention.
These parks offer fun for both children and adults, making them great additions to your travel plans.

Tokyo Joypolis, one of the largest indoor theme parks in Japan
Tokyo Joypolis, one of the largest indoor theme parks in Japan

Classic Summer Leisure Spots! Enjoy the Diverse Pools of Japan

While the sea is wonderful, pools are a must for summer fun.
Japan offers a variety of attractive pools, including those packed with attractions and resort-like pools nationwide.
From theme parks specializing in pools to those with additional attractions, the options are wide-ranging. Many spots cater to both adults and children, allowing you to choose based on your preferences and travel plans.
Be sure to check out this article summarizing the 13 most popular pools in Japan.

There are many pools with a wide variety of attractions.
There are many pools with a wide variety of attractions.

Experience Extraordinary Time at Night Pools

Night pools have recently become a trendy leisure spot, especially among young people.
As the name suggests, these pools are open at night and offer a unique atmosphere with illuminated water and music events hosted by DJs.
The enchanting lighting and luxurious setups, along with stylish photo opportunities, are major draws.
The lack of concern about sunburn is another significant benefit.
Hotels in central Tokyo, such as Shinagawa Prince Hotel and Hotel New Otani, also operate night pools, making them perfect for a visit at the end of your day.
However, note that some places have participation requirements or age restrictions, so be sure to check in advance.

Relaxing at a beautifully illuminated night pool is also recommended.
Relaxing at a beautifully illuminated night pool is also recommended.

Uniquely Japanese Ways to Cool Off! Beat the Summer Heat with a Thrilling Scare

In Japan, there's a unique culture of cooling down through scary stories and experiences.
This tradition, known as "kaidan" (chilling ghost stories), includes a variety of horror-themed activities such as haunted houses and horror movie screenings.
Haunted houses in amusement parks and theme parks are particularly recommended for a quick thrill.
These attractions, featuring actors dressed as ghosts and incorporating creative visuals, sounds, and special effects, offer a thrilling and immersive experience.
Visitors not only feel a drop in temperature from the adrenaline rush but also create unforgettable memories.
Popular destinations include the Toei Kyoto Studio Park, as well as the Super Scary Labyrinth of Fear at Fuji-Q Highland in Yamanashi Prefecture. These spots are among the most famous haunted attractions in Japan.
If you’re visiting Japan in the summer, make sure to add a haunted house to your itinerary for a unique and chilling way to beat the heat.

Try out a haunted house with various features designed to give you a thrilling scare.
Try out a haunted house with various features designed to give you a thrilling scare.

Cool Destinations for Your Summer Trip! Top 5 Popular Summer Resorts in Japan

Japan is known for its high temperatures and humidity nationwide, but there are regions where the climate is mild and comfortable.
Here, we'll introduce five popular summer resorts that are particularly favored as travel destinations in summer.
Each spot offers a refreshing escape from the heat, so if you haven't decided on your travel plans yet, consider these recommendations.

1. Karuizawa - The Famous Highland Resort

Located in the eastern part of Nagano Prefecture, near the border with Gunma Prefecture, Karuizawa is synonymous with summer resorts in Japan.
Situated at an elevation of 900-1,000 meters, it is renowned as a highland resort area.
The area is surrounded by lush green trees, and the cool, breezy air adds a refreshing feel.
Karuizawa offers many spots to cool down, with highlights including the picturesque Shiraito Falls and Kumoba Pond, also known as Swan Lake.
The town is filled with retro buildings and museums that exude historical charm, allowing for a tranquil and relaxed time.
With convenient access, it's just an hour from Tokyo on the Hokuriku Shinkansen.
Be sure to check out this article for carefully selected sightseeing spots and gourmet recommendations to make the most of your Karuizawa visit.

Karuizawa offers not only abundant nature but also a wide variety of tourist attractions.
Karuizawa offers not only abundant nature but also a wide variety of tourist attractions.

2. Hakone - A Popular Hot Spring Resort and Summer Retreat

Located in the southwestern part of Kanagawa Prefecture, Hakone is a top tourist destination known for its hot springs.
With its high elevation and abundant natural beauty, Hakone is a highly recommended summer retreat in the Tokyo metropolitan area.
The riverside promenades are perfect for cooling down, and the waterfalls filled with negative ions lower the ambient temperature.
Chisuji Falls, with its picturesque cascade, and the impressive Hiryu Falls, the largest in the prefecture, are must-see spots.
Additionally, the exhilarating Lake Ashinoko Motorboat rides and the cool Hakone-en Aquarium, where you can see seals, are ideal for summer.
August also features numerous fireworks festivals, so try to schedule your visit to fully enjoy them.
For more detailed information on Hakone's attractions and cuisine, check out this comprehensive article.

Hakone is one of the most popular tourist destinations near Tokyo.
Hakone is one of the most popular tourist destinations near Tokyo.

3. Nasu Highlands - Family-Friendly Spots Abound

Nasu Highlands, located in northern Tochigi Prefecture, refers to the southern slopes of Mt. Nasu, spreading gently from an elevation of 300 to 1,000 meters. It is also famous for housing the Nasu Imperial Villa, a retreat for the Japanese royal family.
With half of the area covered by mountainous terrain, the natural scenery created by the Nasu mountain range is stunning.
Otome Falls, with its beautiful clear stream, and Sukansawa, known for its healing valley scenery, are perfect spots to immerse yourself in nature.
The area also features various campsites, leisure lands where you can interact with animals, and farms offering hands-on experiences, making it an excellent destination for family fun in nature.
This article provides an easy-to-understand introduction to the charms of Nasu Highlands, so check it out if you're interested.

Nasu Highlands is rich in natural scenery and offers many spots that families can enjoy.
Nasu Highlands is rich in natural scenery and offers many spots that families can enjoy.

4. Oku-Nikko - Enjoy Majestic Natural Scenery

Oku-Nikko, located in Nikko City, Tochigi Prefecture, refers to the highland mountain area centered around Senjogahara Marshland.
Even in summer, the average temperature is around 22 degrees Celsius, making it a very cool retreat. The area is dotted with lakes, waterfalls, rivers, and wetlands, making it a hidden gem.
Majestic mountains such as Mt. Nantai and those associated with the World Heritage "Shrines and Temples of Nikko" stand tall, adding historical significance.
The view from Lake Chuzenji is particularly spectacular and is sure to be soothing.
A recommended adventure is taking a sightseeing boat to explore the area.
During the Meiji period (1868-1912), Oku-Nikko was highly praised by foreigners, leading to the construction of many embassies and villas.
Today, the Italian Embassy Villa Memorial Park and the British Embassy Villa have been restored, providing popular spots where you can feel the European ambiance.
Thinking about seeing the same scenery as people from that era is quite moving.

Escape the summer heat and enjoy the magnificent natural scenery of Oku-Nikko.
Escape the summer heat and enjoy the magnificent natural scenery of Oku-Nikko.

5. Kamikochi - Enjoy Hiking in Beautiful Nature

Located in Matsumoto City, Nagano Prefecture, Kamikochi is a mountain scenic spot designated as a Special Place of Scenic Beauty and a Special Natural Monument.
Each year, 1.25 million tourists visit Kamikochi, situated at an altitude of about 1,500 meters, to seek its untouched natural beauty and cool climate.
Among the many highlights in Kamikochi, the iconic Kappa Bridge over the Azusa River is a must-see.
The crystal-clear water, the grandeur of the Hotaka Mountain Range (Northern Alps), and the star-filled night sky offer various delights.
Taking a stroll along the paved walkways is also recommended.
Feeling the spray from the river and the wetlands up close can have a healing effect.
Check out this article for more on Kamikochi's attractions and hiking courses.

Kamikochi is renowned as one of Japan's premier mountain scenic spots.
Kamikochi is renowned as one of Japan's premier mountain scenic spots.

Frequently Asked Questions About Summer in Japan

Q

What are some cool regions in Japan during the summer?

A

Hokkaido, located in the northernmost part of Japan, and the Tohoku region, which includes Aomori, Akita, Iwate, Miyagi, Yamagata, and Fukushima Prefectures, have relatively low temperatures even in summer.

Q

How do Japanese people stay cool in the summer?

A

Traditional Japanese methods for staying cool include using wind chimes (fuurin), paper fans (uchiwa), and sprinkling water (uchimizu) to create a refreshing ambiance.

Summary

We've introduced spots and activities to help you stay cool and enjoy Japan's hot and humid summer comfortably.
From events and food to various activities, there are many ways to beat the heat, so choose the ones that suit your preferences.
Summer in Japan also offers unique experiences and a special atmosphere that you can only enjoy during this season, so make the most of it.
For more detailed explanations of how Japanese people enjoy and spend their summer, check out the articles below.