August is the hottest month in Japan, marking the end of Japan's summer (June to August). Average daily temperatures peak at 88°F (31°C).
As the rainy season (June to August) fades away, you would be rewarded with the driest weather of Japan's summer with just a few short downpours. Rainfall increases again in late August as the typhoon season (September to October) approaches.
In August, you could enjoy plenty of traditional Japanese festivals and world-class fireworks displays, allowing you to fully immerse yourself in the rich Japanese culture.
Find out about average temperatures, rainfall, and tips on where to go and what to wear in Japan in August below.
Weather of Japan's Major Cities in August
Tokyo and Central Japan: Hot; Heat-Avoiding Activities Recommended
- Tokyo, Kyoto, Osaka, Nara, and Hiroshima
August is the hottest month in central Japan, averaging 88°F (31°C). Its average rainfall is moderate at 6 in (147 mm), which typically arrives as afternoon downpours on 1 in 3 days.
Heat and rainfall are not big problems when you are traveling in Tokyo, Kyoto, and Osaka. You could enjoy abundant indoor activities inside air-conditioned buildings to minimize the inconvenience the heat may cause, especially if you travel with kids.
If you want to visit the iconic shrines or temples, we suggest that you visit in the cooler early morning or late afternoon.
August is a good time for mountain-climbing expeditions, such as on Mount Fuji or the Japanese Alps. You would experience cooler temperatures, fresh air, and dense forests in the mountains.
Souce: Weather Spark
To make your Japan trip more comfortable in the hot month of August, we could provide you with a private air-conditioned car and cold drinks that are always on hand. Just tell us your preferences and our Japanese travel advisors would customize your itinerary based on your requests.
Festivals: August in Japan is the perfect time to experience culture-rich festival celebrations and grand fireworks displays. Don't miss the chance to immerse yourself in the huge parades, traditional dance performances, and colorful fireworks.
- The Jingu Gaien Fireworks Festival in Tokyo (mid-August in 2024)
- The Obon Festival in Kyoto (August 13 to 16, 2024)
- The Yodogawa Fireworks Festival in Osaka (August 3, 2024)
Suggest reading: Plan a Family Trip to Japan >>>
Hokkaido and Northern Japan in August: Summer Retreats
- Sapporo, Otaru, and Noboribetsu
With its higher latitudes, you could enjoy cooler weather and more bearable humidity in northern Japan than in central and southern Japan. The average high is 77°F (25°C).
In late August, Hokkaido receives its heaviest rainfall, averaging 5 in (127 mm) for the month. If you're looking for outdoor adventures, such as hiking in the national parks, early August should be a better time.
August is also the best time to spot wildlife from a sightseeing boat, such as brown bears, whales, and a variety of birds.
Festival: The Noboribetsu Hell Festival is held in Hell Valley (Jidokudai) on the last Saturday in August every year in Noboribetsu. You would see locals playing the drums and performing traditional dances in the grand parade.
Here are some popular travel lengths in Japan for your inspiration: 7 days, 10 days, 12 days, and 14 days.
Okinawa in Southern Japan in August: Best for Water Sports
- Naha
In August, average daily temperatures range from 81°F (27°C) to 88°F (31°C ) in Okinawa. It rains about every other day and the average rainfall is high at about 9 in (240 mm).
Packed with white-sand beaches and water sports, Okinawa is a popular destination for summer vacations. You could enjoy exciting activities, such as snorkeling/diving in the caves, swimming with sea turtles, and surfing.
Festival: The Okinawa All-Island Eisa Festival is usually held in late August and is one of the big celebrations in summer. You could better understand the culture of Okinawa by witnessing performances with traditional drums and other instruments, alongside unique dancing.
Will There be Typhoons in Japan in August?
Yes, August and September are the peak months for typhoons in Japan. During these months, southern regions like Okinawa are likely to be more seriously hit. Central regions like Tokyo, Kyoto, and Osaka are usually less affected, but heavy rains and strong winds can still occur when a typhoon hits.
Typhoons can last for 2 or 3 days, and serious ones may lead to transportation delays or cancellations. Therefore, it's important to maintain a flexible itinerary if you are traveling during this month.
Continue to read more details on weather and travel tips for Japan's typhoon month.
Costs and Crowding in August
August in Japan is one of the most popular times to travel, especially for families with school-age children. You may see crowds in many sightseeing spots.
Due to the high demand, the cost of hotels and international flights might be about 10% more expensive than usual.
We suggest that you book at least 3 months in advance to guarantee your favorite rooms and professional guides. Our Japanese travel advisor would create a wonderful trip based on your interests.
Get more ideas about How Much Is a Trip to Japan>>>
What Should I Wear in August?
Because of the hot weather, summer clothing with breathable fabrics is advisable, such as short-sleeved shirts, dresses, shorts, and sandals.
Sun protection is a must due to the high UV rays on sunny days, so pack your sunscreen, hat, and sunglasses.
You're also advised to take some insect repellent as mosquito numbers peak in summer.
Monthly Weather and Travel Information for Japan
Learn about the weather in Japan for 12 months and find out the best places to visit each month.
Get Inspired with Some Popular Itineraries
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