Hong Kong Observatory API
APIFree weather, earthquake, and climate data API for Hong Kong
Overview
The Hong Kong Observatory API provides RESTful access to real-time weather data (forecasts, temperature, humidity, rainfall), earthquake alerts (local tremors, regional quakes), and historical climate statistics (wind speed, solar radiation, monthly averages). Responses are available in JSON, CSV, and XML formats. Key endpoints include real-time weather updates, 7-day forecasts, latest earthquake reports, and annual climate summaries. Ideal for developers building Hong Kong-centric weather apps, researchers analyzing regional climate trends, or services integrating timely earthquake alerts for local residents.
Example Integration (JavaScript)
fetch('https://www.hko.gov.hk/en/abouthko/opendata_intro.htm')
.then(res => res.json())
.then(data => console.log(data))
.catch(err => console.error(err)); Key Features
- RESTful
- JSON/CSV/XML support
- Real-time weather updates
- Earthquake alerts
- Historical climate data
- No API key required
Frequently Asked Questions
? Is Hong Kong Observatory API free to use?
Yes, the API is completely free for public use without any subscription fees.
? Does it require an API Key?
No, most endpoints do not require an API key for access.
? What is the response format?
Responses are available in JSON, CSV, and XML formats depending on the endpoint.
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Tool Info
Pros
- ⊕ Free access
- ⊕ Official and reliable data source
- ⊕ Covers weather, earthquake, and climate data
- ⊕ Multiple response formats
Cons
- ⊖ Region-specific to Hong Kong only
- ⊖ Limited non-English documentation
- ⊖ Some historical data may have delayed updates