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Open-Meteo API vs Open-Meteo Ensemble API

Two free Weather APIs compared on access, reliability and developer ratings, using data from our daily health checks.

The verdict

  • Choose Open-Meteo API if its data fits your use case better; on access and reliability it's level with Open-Meteo Ensemble API.
  • Choose Open-Meteo Ensemble API if its data fits your use case better; on access and reliability it's level with Open-Meteo API.

Side by side

Open-Meteo APIOpen-Meteo Ensemble API
What it doesGlobal weather forecast API for non-commercial use.Weather ensemble forecasts from multiple models.
ProviderOpen-Meteo.comOpen-Meteo.com
API keyNot neededNot needed
HTTPSYesYes
CORS (browser calls)YesYes
Status todayOnline · 522 msOnline · 523 ms
Uptime (30 days)UpUp
Developer ratingNot rated yetNot rated yet
PriceFree / free tierFree / free tier
Open-Meteo docs ↗Open-Meteo Ensemble docs ↗

About each API

Open-Meteo logoOpen-Meteo API

Global weather forecast API for non-commercial use.

Open-Source ☀️ Weather API with free access for non-commercial use. No API Key required ✅. Accurate weather forecasts for any location. Open-Meteo provides high-resolution open data ranging from 1 to 11 kilometres from national weather services. With a user-friendly JSON API, integrating weather da…

Strengths

  • No API key needed
  • Callable from the browser (CORS)
  • HTTPS

Ratings, reviews and FAQ →

Open-Meteo Ensemble logoOpen-Meteo Ensemble API

Weather ensemble forecasts from multiple models.

Ensemble weather forecasts from ICON, GFS, ECMWF, GEM and more. Access individual ensemble members for probabilistic forecasting via a free JSON API.

Strengths

  • No API key needed
  • Callable from the browser (CORS)
  • HTTPS

Ratings, reviews and FAQ →

How to choose between them

  • Prototyping or a tutorial? Pick the one that needs no API key (both qualify).
  • Calling from a web page? You need CORS. Otherwise route requests through your own server or a serverless function.
  • Going to production? Favour HTTPS, a strong uptime record and a provider with clear rate limits and terms. Check each API's docs before you commit.
  • Still unsure? Both are free to try: send one request to each and compare the data you get back.

Open-Meteo vs Open-Meteo Ensemble FAQ

Do Open-Meteo API and Open-Meteo Ensemble API need an API key?

Neither needs an API key; you can call both straight away.

More comparisons

Open-Meteo API alternatives · Open-Meteo Ensemble API alternatives · best Weather APIs