Weather Forecast & Climate
Weather Forecast
In Celsius
In Fahrenheit
Links to Official Weather Forecast
If you wish to see more, go to Japan Meteorological Agency Official Website in English. There are One Week Forecast, weather warnings, and everything about weather. Every weather forecast for Japan is based on it.
Top Page of Japan Meteorological Agency (in English)
http://www.jma.go.jp/jma/indexe.html
Daily Forecast for Tokyo
http://www.jma.go.jp/en/yoho/319.html
One Week Forecast for Tokyo
http://www.jma.go.jp/en/week/319.html
How to translate Celsius into Fahrenheit
F = (9 / 5) x C + 32
C = (5 / 9) x (F - 32)
cf: Tokyo & World Weather Forecast Links (in English)
Climate
General Information
Tokyo has a mild climate in Temperate Zone. Humidity is relatively high, but it is not as serious as the subtropics and the tropics.
The weather is moderate throughout the day.
Mean Temperature (C) (1981-2010)
City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
Sapporo(Hokkaido) | -3.6 | -3.1 | 0.6 | 7.1 | 12.4 | 16.7 | 20.5 | 22.3 | 18.1 | 11.8 | 4.9 | -0.9 |
Tokyo | 6.1 | 6.5 | 9.4 | 14.6 | 18.9 | 22.1 | 25.8 | 27.4 | 23.8 | 18.5 | 13.3 | 8.7 |
Naha(Okinawa) | 17.0 | 17.1 | 18.9 | 21.4 | 24.0 | 26.8 | 28.9 | 28.7 | 27.6 | 25.2 | 22.1 | 18.7 |
Sourced by Japan Meteorological Agency
http://www.data.jma.go.jp/obd/stats/data/en/
Rainy Season
The rainy season begins in early June and ends in the first half of July. (It does not visit Hokkaido.) During the rainy season, it rains almost every day. Generally, the rain is not very strong.
Irises and hydrangeas are traditionally considered to be natural beautiy in June in Japan.
Summer
It is hot and humid in Tokyo. In August, the temperature rises to more than 30 degrees (more than 35 degrees on some days) in the daytime. I strongly advise you to wear a hat and to take some drink with you.
You can prevent heatstroke by
- Wearing a hat
- Having some drink constantly
- Having some rest in shades when you are out
Fireworks festivals are held in the evening, but the risks of heatstroke remain even in the evening, so Japan Meteorological Agency advises the visitors to have some drink.
I advise you to make a moderate travel schedule to enjoy your trip in summer.
See the Blog Post "Laziness Saves You" - 3 Coolest Indoor Activities & 6 Travel Tips to Spend Hot Summer in Tokyo, Japan
Typhoons
A typhoon is a violent tropical storm with strong winds and rain.
3 or 4 typhoons hit Tokyo a year, mainly between June and October. More typhoons visit Okinawa and Kyushu.
The transportation (including airplanes and trains) is brought to a standstill by their approach. In this case, many airlines, trains and hotels have canceling or rescheduling systems for travelers.
Snow
In Tokyo, it snows several times a year. Snow sheets streets around 5 to 20 cm high. There can be some delays or standstills of transportation after it snows.
In Northern Japan, it snows heavily in winter and the ground is covered with deep snow.
JR East Train Status Information in English: http://traininfo.jreast.co.jp/train_info/e/kanto.aspx
Haneda Airport (Tokyo International Airport) Flight Information: https://www.tokyo-airport-bldg.co.jp/en/
Narita International Airport Flight Information: http://www.narita-airport.jp/en/flight/today/