Japan in September: Is It a Good Time to Visit?

Japan in September is warm and transitioning from summer to autumn. On average, temperatures in Tokyo range from 26 to 27°C. There is still high humidity early in September, and the whole country is in the peak season for typhoons. It may still feel like summer at the beginning of the month, but the weather gradually gets better.

So, should you go to Japan in September? Yes, if you don't mind the heat and are prepared for the possibility of typhoons. In return, you will encounter fewer people than during peak season, better hotel availability, seasonal festivals, and even the very first signs of autumn foliage in places like Hokkaido.

In this article, we will discuss the weather in Japan in September, the differences in temperatures of various regions, the typhoon season, the right clothes and things to bring, the top locations, the most important festivals, and whether it is better to visit Japan in September or October.

The weather in Japan in September is typically warm and humid. September temperatures in Japan average around 26-27°C in Tokyo, with conditions being hotter at the beginning of the month and the temperature gradually dropping later on. Weather in Japan in August and September is not all that different, especially at the beginning of the latter. As September carries on though, temperatures get lower and more comfortable.

Early September gives a summer impression. Temperature in Japan in September can exceed 33°C in areas like Tokyo or Okinawa. Osaka and Kyoto are not far behind with their 25-30°C or higher.

What is more, the air is still humid which can actually make conditions feel even warmer. In comparison to August, only slight changes have been made to the weather, especially during the first two weeks.

Japan in late September is much more comfortable. Mornings and evenings are cooler, the sun is less harsh, and the humidity is slowly dropping. During the daytime, however, temperatures can still be high, so you need to plan sightseeing around that factor. But for most travelers, late September is the time when there is a good balance between less crowds and comfortable weather.

The weather in Japan during September differs by region. Hokkaido is cooler and has an average temperature of 18-22°C and brings early signs of autumn colors. The Japanese Alps feel fresher and are suitable for hiking. Meanwhile, Okinawa stays warm and tropical, but with a higher probability of typhoons.

September is peak typhoon season in Japan, but the chances of a storm disrupting your trip remain low. Typhoon paths are forecasted a few days in advance, so you can rearrange your plans accordingly. Moreover, when disruptions do happen, they usually last one to two days. The Japanese know what they are doing. Their emergency management systems are very efficient. There may be a temporary pause in the running of trains or flights, but they get back to work in no time.

Follow updates from the Japan Meteorological Agency, keep your plans flexible, and don't travel long distances between cities when official warnings are in place. Apart from that, during significant disruptions, hotels usually give you the option to change your booking. Just like with earthquakes, typhoons are events that can occur but are not always there. If you are well-prepared, September can be quite rewarding for you.

September can be a good month to travel to Japan if you don't mind the warm weather and stay flexible. You will face less crowds than in October and November, enjoy vibrant festivals, and see early autumn colors in the north. Even though humidity and the risk of typhoons can affect your trip, most travelers still have a wonderful time! Late September, in particular, can suit senior travel, as major sights are less crowded.

Weather varies by region in Japan, so you must choose the region that fits your taste better. Some parts are warm and humid while others are getting cool and more autumn-y. The best places to visit in Japan in September are those that give you comfortable weather, seasonal events, and great natural attractions. Lucky for you, Japan offers plenty of such options! 

If you prefer cool weather, Hokkaido is the best destination to travel in Japan in September.

The temperature stays between 18 and 22°C and places such as the Daisetsuzan National Park are among the first ones to be painted in autumn's colors.

September is wonderful for hiking, taking scenic drives, and enjoying vast open landscapes making Hokkaido ideal for nature and wildlife experiences as autumn colors begin to appear.

Despite the warm weather, Tokyo remains a strong option for city breaks in September. It offers plenty of indoor alternatives and evening happenings. The Grand Sumo Tournament for example, is held in the middle of September and it attracts a great number of fans from all over Japan. Besides that, you can also see firework displays and participate in seasonal festivals. Also, the city's museums, shopping areas, and observation decks offer an escape from the heat and humidity. Tokyo works particularly well for family travel in September.

Kyoto and Osaka remain comfortably warm with slightly less people than during the peak of October. The lively Kishiwada Danjiri Festival around Osaka is a major event, with impressive wooden carts and enthusiastic audiences. In Kyoto, you have the option of exploring temples and taking leisurely evening strolls through old neighborhoods, as it gets cooler and the mood is more relaxed.

If the major cities are too humid for you, the Japanese Alps are definitely a good alternative. Places like Kamikochi are not only less humid, but also beautiful with their magnificent mountain views and tranquil atmosphere. Perfect for adventure travel in September!

This area can be easily combined with a travel plan that includes Tokyo, Fuji, Kyoto, Osaka, and Shirakawa-go. That way, you can have a nice and refreshing nature interlude after a few urban days. The Japanese Alps also make a scenic and intimate stop for honeymoons in early autumn.

One of the best things to do in Japan is to participate in seasonal festivals. September festivals in Japan mark the change from summer to autumn, combining tradition, the spirit of the local community, and energetic performances all over the country.

In mid-September, near Osaka, the Kishiwada Danjiri Festival stages one of the most vibrant spectacles in Japan. Giant wooden floats are drawn at a breakneck pace through very narrow lanes by teams who simultaneously chant and coordinate their movements. Local artisanship and community spirit go hand in hand at the festival, generating a fiercely thrilling and memorable vibe.

The Grand Sumo Tournament is held in Tokyo and it is one of the six official annual tournaments. It allows tourists to enjoy the national sport of Japan in a traditional setting. The rituals, ceremonies, and strict matches reflect hundreds of years of the sport's history and are very much based on the Shinto religion.

Throughout Japan, September hosts numerous small-scale fall festivals, mainly at local temples. Such events, among other things, feature portable shrines (mikoshi), folk music, and street parades. They are focused on the seasonal harvest and gratitude for the fertility of the land, offering a deeper look into Japan’s cultural and historical traditions.

While summer is undoubtedly the main season of fireworks, there are quite a few cities that organize late-summer fireworks shows in the beginning of September. The fireworks displays illuminate the night sky and create an atmosphere of celebration along rivers and waterfronts. Such events gather a lot of locals and offer an easy-going and enjoyable way of spending warm September evenings.

One of the old customs, Tsukimi, is usually celebrated in September. Family members adorn their homes with pampas grass and serve seasonal delicacies while gazing at the full moon. It stands for thankfulness to the harvest and love for nature's cycle of seasons.

If you are considering what to wear in Japan in September, think light, breathable, and comfortable. Early September is still hot like summer, but late September can be chilly at night, especially if you go to the northern part of the country. When it comes to what to bring in Japan in September, flexibility is very important.

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Essentials

Many tourists adjust their schedule by having a short nap at noon and going out again in the evening when the weather is nice and cool. They even plan indoor visits for when the heat is at its highest.

Deciding whether to visit Japan in October or September really comes down to what you value the most. Temperatures during September are higher initially and there is a chance of experiencing a typhoon. That being said, you will have fewer tourists.

On the other hand, you will enjoy more comfortable weather and the best autumn foliage in October. However, you will also face more demand and therefore, bigger crowds.

Simply put: September is great for travelers who value peace and are more flexible while October is more about perfect weather.

A well-balanced 2-3 week trip to Japan in September could start with 7 days in Tokyo. There you can catch all the major sights, indoor attractions, and evening outings. After that, you can go to Mount Fuji but remember that the official climbing season normally ends around September 10. Then continue to Kyoto and Osaka for culture, food, and festivals and consider adding private guides or ryokan stays if you are looking for a more elevated luxury travel experience. Later on, you can go to Shirakawa-go for a peaceful rural getaway. Before confirming hotels and private experiences, many travelers also check how much does a trip to Japan cost in September compared to peak autumn months.

If the heat gets to you, consider swapping part of your itinerary with Hokkaido, where the weather is cooler and the autumn leaves come out earlier. In September, it pays to be a bit flexible. Don't plan to make long intercity transfers on days when there are storm warnings, check the weather forecast every day, and have at least one day in your schedule as a buffer to be able to change your plans without any hassle if necessary.

Japan in September presents a mix of lingering summer vibes and transition to autumn. The temperature is warm but comfortable. Typhoons can happen but they are generally forecasted well in advance, but you also face less crowds than at the peak of autumn. There are amazing festivals to attend and it is even possible to see the autumn foliage in the northern regions, particularly at the end of September. If you are realistic about planning and have a bit of flexibility in your plans, then September may be the time when you truly get the most out of your trip to Japan.

If you have a travel plan in mind, or still undecided, why not talk with Tailored by Locals? A local expert will give you a personalized itinerary that perfectly matches your style, pace, and interests!