Which is the hottest month in Japan?

The hottest time of year in Tokyo, Japan is normally August. Expect maximum daytime temperatures to reach 31°C with high heat and humidity.

Best time to visit Japan

Q: When is the best time to visit Japan?

The best time to visit Japan (Tokyo) is May based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

Q: Which month has the most rain in Japan?

In terms of rainfall, June is usually the wettest month in Tokyo, Japan with 181mm on average. There are normally 20 days in June with some rain.

Q: When is it sunniest in Japan?

The sunniest time of year in Tokyo, Japan is normally January with bright sunshine on average for 59% of daylight hours; that's 6 hours of sunshine per day.

Q: When is the sea warmest in Japan?

The sea is usually at its warmest in Tokyo, Japan in August when the water temperature reaches 26°C.

Find the best time to visit Japan and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Japan by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Top Japan destinations

Below are the temperatures expected today at popular countries, regions and places in Japan. Select a destination to compare today's forecast with average weather conditions.

All Japan destinations

When is the best time to visit Japan?

The best time to visit Japan (Tokyo) is May based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

1.5
Jan
1.5
Feb
1.5
Mar
2
Apr
4
May
3
Jun
2.5
Jul
2.5
Aug
3
Sep
2.5
Oct
1.5
Nov
1.5
Dec

Change criteria

Max Day Temperature (°C)

10
Jan
10
Feb
13
Mar
19
Apr
23
May
25
Jun
29
Jul
31
Aug
27
Sep
21
Oct
17
Nov
12
Dec

Hours of Sunshine (daily)

6
Jan
6
Feb
6
Mar
5
Apr
6
May
4
Jun
5
Jul
6
Aug
4
Sep
4
Oct
5
Nov
6
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Japan (Tokyo) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)

Japan weather overview

Japan, a group of mountainous volcanic islands off the coast of Asia, has a predominantly temperate, seasonal climate with cool to cold but sunny winters, warm to hot summers and mild weather in the spring and autumn.

However, there are exceptions to this: the island of Hokkaido and the northern areas of Honshu experience heavy snows in the winter months when cold winds gust in from Siberia, gathering moisture from the sea as they come.

In central and southern Japan, winter is the (relatively) dry season while there is moderate rainfall in the summer and autumn with the chance of a typhoon, accompanied by heavy rainfall, blowing in from the South China Sea from July to September.

Tropical storm risk: Tokyo, Japan typhoon season

% of month affected by tropical storms

1.4%

2.3%

5.7%

4.8%

1.9%

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

The Tokyo, Japan tropical storm risk chart above shows the typhoon season. The chart was processed from data supplied by the US Meteorological Agency (NOAA). Find out more about our data sources.

More about tropical storms

Southern summers tend to be warm and humid with heavy cloud cover. The mountain areas are usually the most pleasant parts of Japan in the summer months when conditions are predominantly sunny and crisp.

Spring is the best time to visit the lower parts of the country; it brings not only fresh, sunny weather but also the legendary 'cherry blossom time'.

What to pack for Japan weather

While light clothes are fine in the summer, you should combine light clothing with some warmer attire in the spring and autumn, and take much warmer clothing for the winter and visits to the mountain areas. Go prepared for rain in the summer.

More about Japan

Explore our complete guide to Japan with the latest travel advice for travellers and holidaymakers including official updates and local travel tips for Japan.

Essential travel guide
Travel guidance
Travel health
Travel features
Top travel deals
FAQs

Japan travel guide - essential info

Below is a beginner's guide to Japan with essential travel facts such as dominant language spoken, typical flight time from the UK and the local currency. You can also check whether visas are required and what plug adapter you need to pack.

Japan - quick facts
Flight time^✝	11.5 to 15 hours
Time difference	UK +9 hours
Language(s)	Japanese
Currency	Japanese Yen
Electricity	A + B plug (100V)
Driving side	Left

Why visit Japan?

Considering a holiday to the Japan? Here are some of the very good reasons it makes such a wonderful holiday destination be it for culture or nature to ensure you get the most out of your 2025/2026 escape.

Culture
Nature
Nightlife

Japan tourist information

Japan National Tourism

✝ = Typical flight time from the UK.

Travelling to Japan?
Hotels Flights eSIMs Travel insurance

Japan travel guidance

Check the latest travel guidance and advice on visiting Japan from official government sources (in english) from around the world including entry requirements and travel restrictions.

UK traveller advice for Japan - UK FCDO
Irish traveller advice for Japan - Department of Foreign Affairs, Ireland
Canadian travel advice for Japan - Government of Canada
US travel advisories for Japan - US Department of State
Safe travel advisories for Japan - Ministry of Foreign Affairs, New Zealand
Smarter traveller advice for Japan - Department of Foreign Affairs, Australia

Learn more about the current safety and security risks from terrorism, natural disasters and more. Read about the local laws and customs to consider when travelling around Japan.

Note: UK FCDO - UK Foreign, Commonwealth & Development Office

Japan travel health

Find out more about staying safe when travelling to Japan with the latest guidance on required vaccinations and recommended medication to take with you.

Vaccines & medicines for Japan - CDC
Health & vaccinations for Japan - TravelHealthPro, NaTHNac
How to stay safe & healthy in Japan - Fit for Travel, Public Health Scotland

Check out the general travel tips for staying safe and healthy in Japan, risks of preventable diseases and what to pack.

Note: CDC - Centers for Disease Control and Prevention

Japan travel features

Do you want to learn more about Japan? Read our latest features covering travel tips and insider destination guides on where to go and what to do in Japan.

Seeking out the teahouses of Tokyo, Japan

Japan FAQs

Read our frequently asked questions about travelling to Japan including the current entry restrictions, driving side, electrical plugs used and much more.

Which month has the most rain in Japan?

In terms of rainfall, January is usually the wettest month in Tokyo, Japan with 0mm on average. There are normally no days in January with some rain.

When is it sunniest in Japan?

The sunniest time of year in Tokyo, Japan is normally January with bright sunshine on average for 0% of daylight hours; that's 0 hours of sunshine per day.

When is the sea warmest in Japan?

The sea is usually at its warmest in Tokyo, Japan in January when the water temperature reaches 0°C.

What is the flight time to Japan from the UK?

The flight time to Japan from the UK is typically 11.5 to 15 hours.

What is the time difference between Japan and the UK?

The time difference between Japan and the UK is UK time+9 hours.

What is the main language spoken in Japan?

The main language spoken in Japan is Japanese.

Learn a language for Japan with Rosetta Stone^*, Busuu^* and Mondly^*.

What is the currency in Japan?

The currency in Japan is the Japanese Yen (JPY).

Send money to Japan with Wise.com^* and XE Money Transfers^*.

Which plugs are used in Japan?

Japan uses electrical plug type A + B (100 Volts).

Which side of the road do they drive on in Japan?

They drive on the left side of the road in Japan.

Find out more about driving in Japan with International Drivers Association^*.

Japan travel deals

Holidays to Japan

Check out the latest deals, discount codes and special offers on holidays to Japan in 2025/2026. Pay low deposits and save with last minute holiday availability and free kids places.