Public data APIs

Open-Meteo

A weather API for forecasts, historical weather, air quality, and climate data without requiring an API key.

Open original

What it is

Open-Meteo removes the usual signup friction from weather data, which makes it friendly for prototypes and teaching.

Why worth a look

A weather API for forecasts, historical weather, air quality, and climate data without requiring an API key.

Good for

  • Prototyping weather features without account setup.
  • Teaching API requests with real-world time series data.

How to start

  1. Use the interactive API builder for one location.
  2. Copy the generated URL and inspect the JSON response.

Best first click

Open Open-Meteo and start here: Use the interactive API builder for one location.

Trust facts

Pricing
Free
Login required
No
Open source
No
API available
Yes
License
Open data or API terms; verify the source documentation.
Risk
Pricing, login requirements, and availability can change; last human check: 2026-07-08.

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