News

• 2025/09/02

  Articles

  Outlook for Lingering Summer Heat and Typhoons After September 2025, and Their Impact on Power Demand

• 2025/08/18

  Articles

  Japan’s Typhoon Season 2025 – Outlook from August Onward

• 2025/08/14

  Articles

  Weather API Overview

• 2025/07/31

  Articles

  Summer Weather in Japan: What Global Businesses Need to Know (Beyond Travel Tips)

• 2025/07/07

  Articles

  Part 2. What are Long-Term Forecasts? JWA’s Proprietary “2-Year Long-Term Weather Forecast” and Its Business Applications

• 2025/06/30

  Articles

  Part 1. What are Long-Term Forecasts? JWA’s Proprietary “2-Year Long-Term Weather Forecast” and Its Business Applications

• 2025/05/30

  Articles

  Why Is Japan’s Weather So Difficult to Forecast? ―How the Four Seasons and Topography Create Weather Complexity and Affect Businesses―

• 2025/04/16

  Forecast Accuracy

  2024 Japan Weather Association’s Forecast Accuracy Verification Results

• 2025/03/10

  Forecast Accuracy

  2023 Japan Weather Association’s Forecast Accuracy Verification Results

• 2025/02/21

  Announcements

  2025 Cherry Blossom Forecast (as of April 16th)