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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Japan Weather Association Launches “Supply–Demand Adjustment Market Price Forecast”, a New Price Forecasting Service for the Supply–Demand Adjustment Market
~Supporting electricity trading strategies and profit maximization with 30-minute interval price forecasts~ -
Press Release
JWA 2026 Spring Pollen Dispersion Forecast (Part 1)
~Spring pollen season is about to begin
Take extra caution on warm days; peak dispersion expected from late February~ -
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
