Open-Meteo

aid: open-meteo
name: Open-Meteo
description: Open-Meteo is an open-source weather API that provides free global weather forecasts, historical reanalysis data,
  marine conditions, air quality indexes, and long-range climate projections through a simple REST interface requiring no
  API key for non-commercial use. The service aggregates data from over 30 weather models provided by 15+ national meteorological
  services including ECMWF, NOAA GFS, DWD ICON, Météo-France, and JMA, delivering resolutions from 1 km to 11 km updated every
  1 to 6 hours. Historical data extends back to 1940 via ERA5 reanalysis, giving developers and researchers access to consistent
  long-term climate records alongside real-time forecasts. Commercial users who need dedicated server capacity, higher throughput,
  and access to extended APIs such as ensemble forecasts, seasonal outlooks, satellite radiation, and climate change projections
  can subscribe to paid plans priced at a flat monthly rate with no per-call overage charges. The entire server infrastructure
  is open-source under the AGPLv3 license and can be self-hosted, while the underlying weather data is released under CC BY
  4.0.
type: Index
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/open-meteo/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
tags:
- Weather
- Forecasts
- Historical Weather
- Air Quality
- Marine
- Climate
- Open Source
- Free
apis:
- aid: open-meteo:weather-forecast-api
  name: Weather Forecast API
  description: Returns up to 16-day hourly and daily weather forecasts for any global location using coordinates, blending
    multiple national weather models automatically or allowing manual model selection, with no API key required for non-commercial
    use.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://open-meteo.com/en/docs
  baseURL: https://api.open-meteo.com
  tags:
  - Weather
  - Forecast
  properties:
  - type: Documentation
    url: https://open-meteo.com/en/docs
  - type: OpenAPI
    url: openapi/open-meteo-forecast-openapi.yml
- aid: open-meteo:historical-weather-api
  name: Historical Weather API
  description: Provides ERA5 reanalysis weather data from 1940 to the present, enabling long-term climate analysis and research
    across any global coordinate with hourly resolution and consistent data quality across decades.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://open-meteo.com/en/docs/historical-weather-api
  baseURL: https://archive-api.open-meteo.com
  tags:
  - Historical
  - ERA5
  - Climate
  properties:
  - type: Documentation
    url: https://open-meteo.com/en/docs/historical-weather-api
  - type: OpenAPI
    url: openapi/open-meteo-historical-weather-openapi.yml
- aid: open-meteo:ensemble-api
  name: Ensemble API
  description: Delivers probabilistic weather forecasts using ensemble model runs with up to 51 members, supporting risk assessment
    and uncertainty quantification in weather-sensitive applications. Requires a paid commercial subscription.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://open-meteo.com/en/docs/ensemble-api
  baseURL: https://ensemble-api.open-meteo.com
  tags:
  - Ensemble
  - Probabilistic
  properties:
  - type: Documentation
    url: https://open-meteo.com/en/docs/ensemble-api
  - type: OpenAPI
    url: openapi/open-meteo-ensemble-openapi.yml
- aid: open-meteo:climate-change-api
  name: Climate Change API
  description: Serves CMIP6 climate model projections out to 2050, providing downscaled scenarios for temperature, precipitation,
    and other variables to support climate adaptation research and long-term planning.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://open-meteo.com/en/docs/climate-api
  baseURL: https://climate-api.open-meteo.com
  tags:
  - Climate
  - CMIP6
  - Projections
  properties:
  - type: Documentation
    url: https://open-meteo.com/en/docs/climate-api
  - type: OpenAPI
    url: openapi/open-meteo-climate-openapi.yml
- aid: open-meteo:marine-weather-api
  name: Marine Weather API
  description: Returns ocean wave height, swell direction and period, wind wave parameters, and sea surface conditions for
    any oceanic coordinate to support maritime navigation and coastal planning applications.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://open-meteo.com/en/docs/marine-weather-api
  baseURL: https://marine-api.open-meteo.com
  tags:
  - Marine
  - Ocean
  - Waves
  properties:
  - type: Documentation
    url: https://open-meteo.com/en/docs/marine-weather-api
  - type: OpenAPI
    url: openapi/open-meteo-marine-openapi.yml
- aid: open-meteo:air-quality-api
  name: Air Quality API
  description: Provides 5-day hourly forecasts for particulate matter, ozone, nitrogen dioxide, carbon monoxide, pollen, and
    European and US Air Quality Index values sourced from the Copernicus Atmosphere Monitoring Service (CAMS).
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://open-meteo.com/en/docs/air-quality-api
  baseURL: https://air-quality-api.open-meteo.com
  tags:
  - Air Quality
  - Pollution
  - Pollen
  properties:
  - type: Documentation
    url: https://open-meteo.com/en/docs/air-quality-api
  - type: OpenAPI
    url: openapi/open-meteo-air-quality-openapi.yml
- aid: open-meteo:flood-api
  name: Flood API
  description: Delivers river discharge forecasts and ensemble flood risk projections for any river basin globally, sourced
    from the GloFAS model operated by the European Centre for Medium-Range Weather Forecasts (ECMWF).
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://open-meteo.com/en/docs/flood-api
  baseURL: https://flood-api.open-meteo.com
  tags:
  - Flood
  - River
  - Hydrology
  properties:
  - type: Documentation
    url: https://open-meteo.com/en/docs/flood-api
  - type: OpenAPI
    url: openapi/open-meteo-flood-openapi.yml
- aid: open-meteo:seasonal-forecast-api
  name: Seasonal Forecast API
  description: Provides seasonal outlooks up to 9 months ahead using the ECMWF SEAS5 model, offering monthly aggregates of
    temperature and precipitation anomalies for long-range planning and agricultural applications.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://open-meteo.com/en/docs/seasonal-forecast-api
  baseURL: https://seasonal-api.open-meteo.com
  tags:
  - Seasonal
  - Long-Range
  - ECMWF
  properties:
  - type: Documentation
    url: https://open-meteo.com/en/docs/seasonal-forecast-api
  - type: OpenAPI
    url: openapi/open-meteo-seasonal-openapi.yml
- aid: open-meteo:geocoding-api
  name: Geocoding API
  description: Converts place names and city searches into geographic coordinates and returns metadata such as country, timezone,
    population, and elevation to facilitate location lookup within weather application workflows.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://open-meteo.com/en/docs/geocoding-api
  baseURL: https://geocoding-api.open-meteo.com
  tags:
  - Geocoding
  - Location
  properties:
  - type: Documentation
    url: https://open-meteo.com/en/docs/geocoding-api
- aid: open-meteo:elevation-api
  name: Elevation API
  description: Returns terrain elevation in meters for one or more geographic coordinates using a 90-meter digital elevation
    model, useful for altitude-correcting weather data and geographic enrichment in location-aware applications.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://open-meteo.com/en/docs/elevation-api
  baseURL: https://api.open-meteo.com
  tags:
  - Elevation
  - Terrain
  properties:
  - type: Documentation
    url: https://open-meteo.com/en/docs/elevation-api
  - type: OpenAPI
    url: openapi/open-meteo-elevation-openapi.yml
common:
- type: Website
  url: https://open-meteo.com
- type: Documentation
  url: https://open-meteo.com/en/docs
- type: GitHubOrg
  url: https://github.com/open-meteo
- type: Blog
  url: https://openmeteo.substack.com
- type: Pricing
  url: https://open-meteo.com/en/pricing
- type: StatusPage
  url: https://status.open-meteo.com
- type: X
  url: https://x.com/open_meteo
- type: Plans
  url: plans/open-meteo-plans-pricing.yml
- type: RateLimits
  url: rate-limits/open-meteo-rate-limits.yml
- type: FinOps
  url: finops/open-meteo-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com