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Weather Forecast in Japan

The seasons are the same as in Europe. In winter, the dry and cold winds from the north turn into rain and snow upon reaching the Sea of Japan. In summer, there are two rainy seasons; the first in mid-June (called 'tsuyu') when there can be some heavy rainfalls, and the second in September. The average annual temperatures vary significantly: 5C in Nemuro (Hokkaido) and 16C in Okinawa. There are risks of typhoons from August to October. In the northern part of the peninsula, the summers are short and the winters long, with harsh temperatures and heavy snowfall. The best time to visit Japan is thus in spring and autumn.

The weather prediction service in Japan is based on a calculation which takes into account historic data from the last 10 years, as well as predictions based on certain criteria such as air temperature, humidity, water temperature, wind speed and sunshine.

Prepare your things now for your stay by taking a look at the weather predictions for Japan.

  • Temperature
  • Bad weather
  • Sunbathing
  • Swimming
  • Wind
  • Humidity

The weather is rated on a scale from 0 to 100, with the worst weather conditions ranging between 0 and 19 and the best ranging above 79.
The overall weather comfort index is:

  • Excellent (Rating between 80% and 100%)
  • Good (Rating between 60% and 79%)
  • Average (Rating between 40% and 59%)
  • Bad (Rating between 20% and 39%)
  • Very bad (Rating between 0% and 19%)

Japan: When to go ?

Japan: Weather comfort forecast for September

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Japan: Seven-day weather forecast

Take a look at the seven-day weather forecast for the principal cities in Japan. For each destination, Easyvoyage's weather tool gives you temperature and rainfall indicators, along with wind force and direction and sunrise/sunset times. Prepare your holidays using our weather forecasts or organise your activities thanks to the weather comfort index for Japan. Whether you're getting ready to go or already on holiday, it's never been simpler to keep an eye on the weather than with Easyvoyage!

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