Established in 1950 as the first private weather forecasting company in Japan, Japan Weather Association (JWA) has brought timely weather information to everywhere in Japan. As a pioneer of the Japanese weather service industry, we are expanding our business through developing weather related disaster prevention technologies and promoting public awareness to disaster prevention as well as environmental technology development, research and consultancy services.

JWA offers

Quality and Reliability

We provide not merely reliable weather information but also quality consultant services based on accumulated knowledge and skills over 60 years. We have variety of specialists in each section to meet the different types of demand from our customers.


As you see in the development of a sonde for the lower atmosphere in 1965 and in the release of an innovative weather information online service for large-scale customers ‘MICOS’ in 1978, JWA has been pursuing innovative and comprehensive solution to contribute to the society as a pioneer in the industry.

Safety and Comfort

We contribute to the improvement of safety and comfort for our society through providing weather, environment, disaster related information and services.