Researched guide · Checked on Nov 5, 2026
August is Tokyo’s hottest month, with summer festivals, dance parades and the Obon holiday in mid-August. It is also when typhoons start to come close. Here is the weather, what’s on in August 2027, and how to plan around the heat and the crowds.
Quick answer
Weather: average high 31°C (88°F), low 24°C (75°F), and 155 mm (6.1 in) of rain. The hottest month of the year.
Obon: a busy holiday period in mid-August. Book trains and hotels early.
Festivals: the Koenji Awa Odori dance festival on the last weekend of August.
Holiday: Mountain Day on Wednesday, August 11, 2027.
Tokyo weather in August
August has an average high of 31°C (88°F), a low of 24°C (75°F) and 155 mm (6.1 in) of rain. It is hot and humid day and night, and recent summers have often been hotter than these averages. Sudden heavy showers are common. Average humidity is 74%. These are 1991–2020 averages, not a forecast for 2027. See Tokyo weather by month.
| Date | Average high | Average low | Average sunshine |
|---|---|---|---|
| August 1 | 31.7°C (89°F) | 23.8°C (75°F) | 6.0 hours |
| August 15 | 31.5°C (89°F) | 23.7°C (75°F) | 5.6 hours |
| August 31 | 30.1°C (86°F) | 22.6°C (73°F) | 4.9 hours |
Obon (mid-August)
Obon is a Buddhist time for honoring ancestors, and many people go back to their hometowns. Trains, Shinkansen and popular day-trip spots are crowded, so book seats early. On August 15, Senso-ji holds a memorial service with lanterns (Manrei Toro Kuyo-e), according to the temple.
Summer festivals
Many neighborhoods hold summer festivals with food stalls and dancing. One of the biggest is the Koenji Awa Odori on the last weekend of August, with over 10,000 dancers and about one million visitors. See Tokyo events by month.
Escaping the heat
- Karuizawa: a cool highland resort about 70 minutes from Tokyo Station by Shinkansen.
- Climbing Mt. Fuji: only possible in summer. In 2026 the Yoshida Trail season ran from July 1 to September 10.
- Indoor sights: teamLab, museums and aquariums.
- Evening views: go up an observation deck after sunset. See Tokyo observation decks.
- Flowers: sunflowers at Showa Kinen Park in August.
Typhoons
Across Japan, typhoons come close most often in August and September. They can stop trains and flights for a day, so keep your plans flexible. See typhoons in Tokyo.
Tips for August
- Check Heat Stroke Alerts, drink water often and rest indoors in the middle of the day.
- Book early for Obon. See where to stay in Tokyo.
- Carry a folding umbrella for sudden showers.
Month by month: ← Tokyo in July · Tokyo in September → · All 12 months
Find hotels in Tokyo for August
Opens the search results in a new tab. Prices and availability are set by each site. Some of these are affiliate links: we may earn a commission at no extra cost to you.
FAQ
Is August a good time to visit Tokyo?
It is the hottest month and Obon is very busy, but there are festivals and fireworks. Plan around the heat and book early.
What is the weather like in Tokyo in August?
Hot and humid: an average high of 31°C (88°F) and a low of 24°C (75°F), with 155 mm (6.1 in) of rain.
When is Obon?
In mid-August. It is one of the busiest travel periods in Japan.
Are there typhoons in August?
Yes, typhoons come close to Japan most often in August and September. Keep your plans flexible.
Related Articles
Sources
Event dates come from the official pages below; weather from the Japan Meteorological Agency (checked November 5, 2026); the rest from our guides, which list their official sources (checked October 23, 2026). Dates change every year, so please check before you go.
