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opendata.chmi.cz/

ČHMÚ Open Data (Czechia)

Freeauth: noneCC-BY-4.0#weather#czechia#climate#hydrology#files#government✓ verified Nov 12, 2026

ČHMÚ Open Data (Czechia)

The Czech Hydrometeorological Institute (ČHMÚ) publishes open data as files on a public directory server (opendata.chmi.cz), with air-quality, hydrology and meteorology sections (climate, floods, phenology, products, weather), mostly as JSON. Documentation is in Czech.

Required Attribution:

Required: credit the source (ČHMÚ), per the terms quoted above.

Coverage

Czech meteorological, hydrological and air-quality data. ČHMÚ's FAQ points to the National Database of Hydrometeorological Data and Products and lists dataset metadata in the Czech national open data catalogue (NKOD). History start and update frequency per dataset: Not stated on the pages read.

Verdict

Public file server (opendata.chmi.cz) of ČHMÚ meteorological, hydrological and air-quality data. Licensed CC-BY-4.0: ČHMÚ's terms of use say (Czech; Signal Lab translation in brackets): "Produkty Českého hydrometeorologického ústavu dostupné na těchto webových stránkách podléhají licenci Creative Commons 4.0 CC-BY. Dílo smíte sdílet a upravovat za podmínky uvedení původu (zdroje ČHMÚ)." [ČHMÚ products available on these web pages are subject to the Creative Commons 4.0 CC-BY licence. You may share and adapt the work provided you credit the source (ČHMÚ).] Rate limits: Not stated. Signal Lab links only.

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