Hong Kong Observatory API
Not rated yet · Be the first to rate itProvide 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

Real-time weather for any location
weatherstack serves current and historical weather data as JSON, with a free plan to start.
Hong Kong Observatory API alternatives
Compare all 45 alternatives →World Time & Weather
Current weather, local time, UTC offset and DST rules for 400 cities as static JSON
Ratings & reviews
No ratings yet
Used Hong Kong Observatory? Be the first to rate it.
Write a review
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.
Markdown
[](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>