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Bright Sky (DWD) vs Meteorologisk Institutt

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

APIBright Sky (DWD)NEW—Meteorologisk InstituttNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedCC BY 4.0 / NLOD (Norwegian Licence for Open Government Data)
Free tierUnlimited, no key, no credit cardFree, 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

Bright Sky (DWD) vs Meteorologisk Institutt: common questions

Which is more reliable, Bright Sky (DWD) or Meteorologisk Institutt?

On our scheduled checks, Meteorologisk Institutt leads on measured uptime — Bright Sky (DWD) at —% versus Meteorologisk Institutt at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Bright Sky (DWD) and Meteorologisk Institutt need an API key?

Neither needs a paid key — Bright Sky (DWD) 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 Bright Sky (DWD) and Meteorologisk Institutt from the browser?

Yes — both Bright Sky (DWD) 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 Bright Sky (DWD) and Meteorologisk Institutt free for commercial use?

Bright Sky (DWD) 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.