Japan is quite hot and humid in September, especially the south and central parts, with average temperatures ranging 16–30ºC (60–85°F). There are occasional typhoons on the east coast, with strong winds and precipitation of around 160 mm (6 in).
As September marks the start of fall, it gets cooler and drier by the end of the month, and peak season travelers start to disappear. September is a good time to travel; there are good prices on offer and fewer crowds.
September Weather: Quick Facts
- The weather in Japan is hot and humid in the first half of September and cooler towards the end.
- Average daily temperatures range 16–30°C (61–86°F).
- The average rainfall for the month stands at about 160 mm (6 in).
- Wearing thin, light, and breathable clothing and sandals is recommended; warm layers are suggested if you plan to visit North Japan.
- September falls in the gap between the peak and low travel seasons, so there are good prices on offer and fewer crowds.
Why You Should Visit Japan in September
September is a great time to enjoy two distinct seasons — summer and fall. You can enjoy the hot weather on the southern beaches, but also experience the fall colors and cooler weather of Northern Hokkaido.
September Average Temperature
September Average Temperature
Fall Colors in Hokkaido
September is the start of fall in Hokkaido; the temperature starts to drop, which makes the weather pleasant. The average temperature is 18°C (64°F), with the maximum temperature reaching 22°C (72°F), and the minimum reaching 14°C (57°F). There are some foggy days, with total rainfall for the month averaging around 171 mm (7 in).
With the beginning of fall in September, Hokkaido is the first place to exhibit fall colors; you can see leaves turn red, gold, and orange from around mid-September.
September is also a good time for outdoor activities like hiking. Daisetsuzan National Park is on the highest mountain in Hokkaido, and is a great place to witness the arrival of fall.
Honshu: Sightseeing without Crowds
Honshu in September is hot and humid, but temperatures start to drop in late September. The average maximum temperature is 28°C (82°F) in major cities, such as Tokyo, Osaka, Kyoto, and Hiroshima; the average minimum is 16°C (60°F) in the mountains. There is typically about 131 mm (5 in) of precipitation.
Indoor sightseeing is preferable in September; moreover, as the summer holidays will be over, September is a good time to sightsee without crowds. You can enjoy indoor events, such as the Tokyo Grand Sumo Tournament and Tokyo Game Show.
As typhoon season reaches its peak in September, allow for some flexibility in your trip, in case your travel plans get disrupted by a typhoon.
Okinawa: Beach and Culture
Okinawa is the hottest place in Japan in September. The average temperature ranges 26–30ºC (79–86°F). September is the peak season for typhoons; there are usually about 10 days of rain, with an average precipitation of 189 mm (7 inches).
As temperatures are still high, September is a good time to try out water activities, such as swimming, diving, and snorkeling. In addition, you can explore the history and culture of Okinawa: visit Shuri Castle and Okinawa Peace Memorial Park, and try unique local delights, such as goya champuru (bitter melon stir fry), umibudo (sea grapes), Okinawa soba (a noodle dish), and Orion beer.
September is a great time to visit Okinawa and avoid crowds, as the official beach season is over.
Tokyo: Weather and Travel in September
In September, the average maximum temperature is 27°C (81°F), and the average minimum is 20°C (68°F). The average rainfall in September is around 130 mm (5 in), and there are usually about 12 days of rain.
Visiting Tokyo in September presents the chance to witness the Grand Sumo Tournament. There are six tournaments every year in four cities; in September, Tokyo hosts the tournament for 15 days (September 13–27) at Ryogoku Kokugikan Stadium. Tickets sell out quickly, so booking in advance is recommended.
The Art Aquarium offers popular indoor events in September. For instance, it displays goldfish in various ornate bowls, tanks, and ponds with colorful lighting and effects. After 5 p.m., it turns into a “Night Aquarium,” where you can enjoy drinks and music by top DJs. Please note: children under 12 have to be accompanied by an adult.
Clothing: shorts, t-shirts, and light trousers. Rain gear is also highly recommended.
Osaka: Weather and Travel in September
Osaka in September is hot and humid; the average temperature ranges 22–29°C (72–84°F), and there are usually 10 days of rain, with 160 mm (6 in) of precipitation.
September is a wonderful time to visit Himeji, which is known for its magnificent castle. Himeji Castle is the most beautiful and spectacular castle in Japan. Usually, people take two or three hours to see the whole castle, so you can also visit Koko-en Garden and Mount Shosha on the same day.
Sweet Japanese-style Cakes
Besides sightseeing, food exploration is a pleasant choice. People in Osaka spend more on food than people in other parts of Japan. Osaka is famous for foods such as takoyaki (octopus balls), okonomiyaki (savory pancake), kushikatsu (deep-fried meat and veggies on skewers), kitsune udon (a noodle dish), and teppanyaki(grilled meat and veggies) You can try these local dishes in Dotonbori, Shinsekai, and Kitashinchi.
Clothing: summer clothes like shorts, T-shirts, and light trousers.
Kyoto: Weather and Travel in September
In Kyoto, the average maximum temperature is 29°C (84°F), and the average minimum temperature is 20°C (68°F). There is a high amount of rainfall — 172 mm (7 in) — and about 11 days of rain.
September is a good time to visit Uji, which is famous for its high-quality tea. You can visit the historical Byodoin Temple and Ujigami Shrine, enjoy Uji tea and tea culture by participating in a tea ceremony, and taste matcha-flavored foods, such as soba noodles, ice-cream, and sweets.
Kyoto Tower is a modern landmark in Kyoto. It is the tallest building in Kyoto and offers a panoramic view of the city. Visiting around sunset and enjoying views of the city at night (until 9 p.m.) is recommended.
Clothing: thin, breathable, clothes such as t-shirts, shorts, and skirts, and sandals.
Hiroshima: Weather and Travel in September
Hiroshima is hot and wet in September. The temperature ranges 21–29°C (70–84°F). There are 16 days of rain and 170 mm (7 in) of precipitation.
In Hiroshima, visiting Miyajima is a must. It is a historic island with shrines and temples, such as the Itsukushima Shrine, Daisho-in Temple, and Senjokaku Hall. To get the most out of the experience, we suggest staying overnight at one of the island’s ryoka (a Japanese inn), and enjoying a quiet and peaceful evening in Miyajima.
Trying local delicacies will enhance your travel experience. The most popular restaurants are in Hiroshima Station and downtown Hiroshima. You can try Hiroshima-style okonomiyaki, oysters, momiji manju (a steamed bun shaped like a maple leaf), and cold Hiroshima-style tsukemen (a noodle stew).
Clothing: short-sleeved t-shirts and shorts, and sandals. An umbrella or a raincoat is highly recommended.
Sapporo: Weather and Travel in September
Sapporo in September is cool and pleasant. The average maximum temperature is 22°C (72°F), and the average minimum temperature is 14°C (57°F). September is the wettest month, with 135 mm (5 in) of precipitation, and about 20 days of rain.
With the start of cool weather in Sapporo, you can expect to see fall colors. Walking amongst the ginkgo and maple trees downtown or in the suburbs of Sapporo is a pleasant experience. The most popular places to see the arrival of fall are Nakajima Park, Odori Park, and Jozankei.
September is the best month to enjoy the flavors of Hokkaido because of the Sapporo Fall Fest. This food festival starts in early September and lasts till the end of the month; it takes place at Odori Park. Fresh Otaru sushi, scallops, Furano melon, and Sapporo beer are highly recommended.
Clothing: long-sleeved t-shirts, jeans, and warm sweaters or jackets for early mornings and evenings. Rain gear is necessary, as there is a high chance of precipitation in this area.
Events and Festivals in September
September marks the start of fall in Japan. There are a few traditional cultural festivals and events that happen in September throughout Japan. Here are the most popular ones that can add some extra fun to your trip.
Seiryu-e Dragon Festival: Kyoto, September 14–15
The Seiryu-e Dragon Festival happens annually on September 14–15; it starts at 2 p.m. in Kiyomizu-dera. The blue dragon is believed to welcome the fall season. During the festival, you can witness the procession, in which the blue dragon drinks from the Otowa Waterfall, and the dragon dance. You may also have the opportunity to receive a special blessing at the Kiyomizu-dera Temple.
Kishiwada Danjiri Festival: Third Weekend in September
The Kishiwada Danjiri Festival is the wildest, biggest, and most famous danjiri matsuri in Japan. It is a cart-pulling festival held during the third weekend in September in Kishiwada, in the south of Osaka, to pray for a good harvest.
There are 35 wooden floats from the different neighborhoods; participants race their nearly four-ton danjiri through the streets. Men stand and dance on top of the floats, which weave and turn down narrow streets.
Kichijoji Fall Festival: Second Weekend in September
Kichijoji Fall Festival takes place annually during the second weekend of September in Musashino Hachimangu to welcome the fall.
The main event of this festival is the procession of mikoshi (a religious palanquin) along the main shopping street of Kichijoji and through the surrounding areas. Besides this, Musashino Hachimangu hosts a shrine festival with food stalls, games, music, and entertainment.
Visiting Japan with Asia Highlights
September is a great time to explore Japan during two seasons: summer and fall. Asia Highlights has been in the tailor-made tourism industry for over 20 years, so we can help you plan customized trips. We will organize hotels, transportation, and private guides, and make sure that you have a hassle-free time in Japan.