This category is for sites on weather and climate related issues in Japan. [MORE]
1.
Weather Underground: Japan
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Offers current weather conditions for a nationwide list of cities, including barometric pressure, humidity, winds, and time of last update.
2.
BBC Weather Centre - Country Guides: Japan
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Provides climate and weather information, facts and statistics about the country, along with five-day forecasts for major cities.
NOAA NWS - Japan Weather
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US government site provides hour-by-hour weather conditions for the past 24 hours for major cities and locations in the country.