About JWA
For a Society in Harmony with Nature
Since its establishment in 1950, Japan Weather Association has been a pioneer in weather consulting services in Japan. By leveraging AI, IoT, and meteorological big data, we have advanced the accuracy of weather investigation, analysis, and forecasting, while supporting initiatives that help build a sustainable world, such as adaptation to climate change.
With weather technology, Japan Weather Association is committed to supporting the future and creating a “society in harmony with nature.”
Services & Solutions
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Electric Power Demand Forecast
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Solar Power Generation
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Wind Power Generation
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Environmental Impact Assessments
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Disaster Mitigation・Crisis Management・Climate Change Measurements
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Transport (Roads, Rails, Air, Oceans)
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Meteorological and Oceanographic Forecasts & Real-Time Data Provisioning
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Manufacturing, Retail, Advertising, and Marketing
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tenki.jp & Media Services
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Web, Apps and Other Services
News
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Press Release
2025, 3rd Autumn Foliage Peak Viewing Forecast
Color Change Likely to Be Delayed in the Lowlands of Eastern Japan and Across Western Japan; Peak Viewing Expected in Many Areas from Late November Onward -
Press Release
2025, 2nd Autumn Foliage Peak Viewing Forecast
~Peak Viewing Expected Around or Later Than the Usual Time Nationwide; Color Change to Accelerate in Northern Japan From Mid-October~ -
Press Release
2025, First~ Autumn Foliage Peak Viewing Forecast~
~Higher temperatures may affect the timing of leaf coloration— Peak viewing in northern and eastern Japan is expected to be around the usual time or later~
