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Weather

Provide weather information, earthquake information, and climate data.

Hong Kong Observatory API is a free Weather API that requires no API key, is served over HTTPS and has unconfirmed CORS support.

Authentication
None required
HTTPS
Yes
CORS
Unknown
Category
Weather
Uptime (30 days)
100%

Online · 2134 msTested Nov 15, 2026 · checked dailyIs it down? Status & uptime

About hko.gov.hk

Observatory’s data sets released on Government Open Data Portal. An Open Data Application Programming Interface (API) and the related documentation are available to facilitate retrieval of required data.

Provider
hko.gov.hk
Website
hko.gov.hk ↗

Details from hko.gov.hk.

Key facts

  • No API key needed
  • 100% uptime (30 days)
  • HTTPS
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Hong Kong Observatory API FAQ

Is the Hong Kong Observatory API free?

Yes. The Hong Kong Observatory API is listed in the Weather category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.

Does the Hong Kong Observatory API require an API key?

No. The Hong Kong Observatory API requires no authentication, so you can start making requests without signing up.

Can I call the Hong Kong Observatory API from the browser?

CORS support for the Hong Kong Observatory API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.

Does the Hong Kong Observatory API support HTTPS?

Yes. The Hong Kong Observatory API is served over HTTPS, so it's safe to use in production.

Maintain the Hong Kong Observatory API? Add a badge

Show that Hong Kong Observatory is listed on Public APIs. The badge displays its developer rating once it has one.

Hong Kong Observatory on Public APIs

Markdown

[![Hong Kong Observatory on Public APIs](https://publicapis.lol/badge/hong-kong-observatory.svg)](https://publicapis.lol/apis/hong-kong-observatory)

HTML

<a href="https://publicapis.lol/apis/hong-kong-observatory"><img src="https://publicapis.lol/badge/hong-kong-observatory.svg" alt="Hong Kong Observatory on Public APIs" height="20"></a>