Revised Meteorological Service ActIs Your Service Fully Compliant?

Using weather data from overseas providers in Japan can carry significant compliance risks. The Japan Meteorological Agency (JMA) can now publicly identify operators who provide forecast services without the mandatory legal permits.

Experience a hassle-free migration to Weathernews. We combine our status as the world’s largest private weather company with JMA-certified reliability and Japan’s No. 1 forecast accuracy.

Facing These Challenges?

01

Uncertainty about whether your overseas API complies with the revised Meteorological Service Act

02

Pressure from legal or compliance teams to verify the legitimacy of your data sources

03

Dissatisfaction with the accuracy of global models that struggle with Japan’s unique geography

04

The need for reliable data synced directly with official disaster prevention alerts and warnings

Why Should You Re-Evaluate Your Weather Data?

To uphold public safety and prevent weather-related disasters, Japan’s Meteorological Service Act mandates that all domestic forecasting services hold an official permit from the Japan Meteorological Agency (JMA). This ensures that every forecast used for business or public safety meets the highest regulatory standards.

3 Risks of Relying on Unlicensed Providers

While many overseas weather APIs are easy to implement at a low cost, many operate without the mandatory legal permits required in Japan. For business users, relying on these unlicensed providers introduces several critical risks:

Compliance & Reputational Risk

Commercial use of unlicensed forecast data can lead to legal liability and public flagging by the JMA, risking your brand's credibility and business standing.

Delayed Disaster Response

Without a direct link to official JMA warnings, your service may miss life-saving alerts or act on inaccurate data. This gap can delay critical safety measures and lead to dangerous errors during extreme weather events.

Low Forecast Accuracy

Generic global models aren't optimized for Japan’s unique mountains and coastlines. Relying on these models creates "accuracy gaps" that lead to operational errors, as they often fail to reflect actual local conditions.

3 Reasons to Switch to Weathernews

Japan's No. 1 Accuracy for 3 Consecutive Years

As a fully licensed JMA provider, we eliminate regulatory risk, allowing you to deploy with total confidence across large-scale corporate systems and public infrastructure.

Ultra-High-Resolution Pinpoint Forecasting

Our proprietary 1km-mesh models, powered by Japan’s most extensive observation network, capture localized weather phenomena with pinpoint accuracy that global models miss.

Disaster Prevention Intelligence

Protect your assets with data directly integrated with official warnings for earthquakes, tsunamis, and typhoons.

Why Choose Weathernews
Weathernews
Overseas Providers
Forecast Permit
Fully Licensed
None / Unknown
Local Forecast Resolution
1km mesh
Coarse
Forecast Accuracy
No. 1 in Japan
Lower Precision
Support
English & Japanese
English

Full Support for a Seamless Transition

Moving from an overseas API is simpler than you think. Our dedicated engineering team provides end-to-end technical support to ensure a smooth migration of your data and systems without interrupting your service.

Compliance Consultation

We conduct a thorough review of your current data specifications, legal concerns, and technical requirements to ensure a perfect fit.

Optimized Data Strategy

We design a custom API configuration tailored specifically to your unique use case and operational environment.

Trial & Technical Integration

We provide test operation in a development environment and technical support.

Launch & Ongoing Support

We monitor for stable operations and provide expert guidance on how to leverage our data during extreme weather events.

Affordable and Easy-to-Adopt

Startup Plan

Monthly30,000JPY

(Tax included: 33,000 JPY)

Up to 10,000 API calls※1

Perfect for Testing

A flat-rate plan that is easy to get started with. Give the weather API a try without any hassle.

Usage Examples

Pattern ①
Pattern ②
Number of Locations
20
10
Fetch frequency
Every 3 hours (8 times/day)
Every 1 hour (24 times/day)
API calls (per day)
160 calls
240 calls
API calls (per month)
4,960 calls
7,440 calls

Both patterns fit within the Startup Plan. Please contact us for details on other plans, pricing, and usage examples.

※1 The number of API call counts and pricing may vary depending on the type of API used and how it is called. Details will be provided upon inquiry.

Protect Your Business with Compliant, Industry-Leading Weather Data

With regulatory changes already in effect, your choice of weather partner matters more than ever. Don’t let uncertified data put your service at risk. Make the move to Weathernews and operate with the confidence of Japan’s No. 1 weather provider.