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Hong Kong Observatory vs Meteorologisk Institutt

Same instrument, two spec sheets — measured, not claimed.

APIHong Kong ObservatoryHEALTHY60Meteorologisk InstituttHEALTHY92
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms1415621
P95 · ms36701857
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseHKO open data (see terms of use)CC BY 4.0 / NLOD (Norwegian Licence for Open Government Data)
Free tierFree, no keyFree, no key; requires identifying User-Agent
Rate limitUnpublishedThrottled; identify via User-Agent and respect caching headers (per docs)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Hong Kong Observatory vs Meteorologisk Institutt: common questions

Which is more reliable, Hong Kong Observatory or Meteorologisk Institutt?

Both are neck-and-neck — Hong Kong Observatory and Meteorologisk Institutt each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Hong Kong Observatory or Meteorologisk Institutt?

Meteorologisk Institutt has the lower median latency in our checks — Hong Kong Observatory responds in 1415 ms versus Meteorologisk Institutt at 621 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Hong Kong Observatory and Meteorologisk Institutt need an API key?

Neither needs a paid key — Hong Kong Observatory is callable with no signup, and Meteorologisk Institutt is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Hong Kong Observatory and Meteorologisk Institutt from the browser?

Yes — both Hong Kong Observatory and Meteorologisk Institutt send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Hong Kong Observatory and Meteorologisk Institutt free for commercial use?

Hong Kong Observatory has unclear commercial terms, and Meteorologisk Institutt allows commercial use on its free tier. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.