data api · Global

Open-Meteo API

Weather forecast API combining multiple numerical models; separate historical APIs available.

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Data offered docs-verified: hourly temperature (2 m) · relative humidity (2 m) · dewpoint (2 m) · precipitation (rain + showers + snow) · rain · showers · snowfall · snow depth · soil temperature (0–54 cm) · soil moisture (0–81 cm) · reference evapotranspiration (ET₀) · wind speed and direction (10–180 m) · wind gusts (10 m) · cloud cover · visibility · CAPE and lifted index · solar radiation (GHI, DNI, DHI, GTI) · pressure-level variables · boundary layer height
Coverage llm-inferred: Global (ENTRY regions), with regional high-resolution models listed in DOCS (e.g. ECMWF, NCEP HRRR U.S. CONUS, DWD ICON EU, MET Norway Nordic, KNMI Harmonie AROME Europe, GEM HRDPS Canada) · Forecasts up to 16 days ahead; past data via the Past Days option (archived forecasts)
Resolution docs-verified: Model-dependent: from 9 km (ECMWF IFS HRES) to 0.25° (ECMWF IFS, NCEP GFS); temporal resolution for hourly data is documented separately
Formats llm-inferred: JSON
Access llm-inferred: No API key for free non-commercial use; commercial use requires a separate subscription. Data licence CC BY 4.0; service terms apply.

Use cases llm-inferred: Short-term rainfall and snowfall forecast context for earthworks and construction weather-window planning · Soil moisture and reference evapotranspiration (ET₀) inputs for ecological or water-balance screening · Wind gust and precipitation checks for site risk assessments (crane lifts, temporary works, exposed drainage)
Audience llm-inferred: drainage engineers · hydrologists · flood consultants · geotechnical engineers · ecologists · construction and site managers

Constraints llm-inferred: Forecast-oriented: DOCS describe forecasts up to 16 days; historical archive is not described on this page (ENTRY says separate historical APIs exist) · Past-data access is via archived forecasts through the Past Days feature, not observed records · Resolution and variable availability depend on the chosen weather model · No UK-specific model is named in DOCS · Commercial use needs a paid subscription · Service terms apply in addition to CC BY 4.0 data licence

Licence: CC BY 4.0 data; service terms apply
Authentication: No key for free non-commercial access; commercial subscription separate
GitHub stars: Unknown
Last commit: Unknown
Last successful page check: 14/10/2026
Page health: page reachable
Package: Not recorded
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Metadata observed 14/10/2026 · editorial seed