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OpenWeatherMap API vs Weatherstack API

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

The verdict

  • On access and reliability they're level, so pick by the data you need:
  • OpenWeatherMap API: Explore OpenWeather's vast range of weather APIs including the versatile One Call API 4.0.
  • Weatherstack API: Real-Time & Historical World Weather Data API.

Side by side

OpenWeatherMap APIWeatherstack API
What it doesExplore OpenWeather's vast range of weather APIs including the versatile One Call API 4.0.Real-Time & Historical World Weather Data API.
Provideropenweathermap.orgWeatherstack
API keyRequiredRequired
HTTPSYesYes
CORS (browser calls)UnknownUnknown
Status todayOnline · 527 msOnline · 739 ms
Uptime (30 days)UpUp
Developer ratingNot rated yetNot rated yet
PriceFree / free tierFree / free tier
OpenWeatherMap docs ↗Weatherstack docs ↗

About each API

OpenWeatherMap logoOpenWeatherMap API

Explore OpenWeather's vast range of weather APIs including the versatile One Call API 4.0.

Explore OpenWeather's vast range of weather APIs including the versatile One Call API 4.0. Ideal for both beginners and professionals, our APIs offer current weather, minute-by-minute forecasts, historical data archives, and future predictions. Access weather data starting from 01-01-1979, global w…

Strengths

  • HTTPS

Ratings, reviews and FAQ →

Weatherstack logoWeatherstack API

Real-Time & Historical World Weather Data API.

Get current weather information, historical data and forecasts using weatherstack - a free world weather REST API supporting millions of global locations.

Strengths

  • HTTPS

Ratings, reviews and FAQ →

How to choose between them

  • Prototyping or a tutorial? Pick the one that needs no API key (neither does, so compare their free tiers).
  • 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.

OpenWeatherMap vs Weatherstack FAQ

Do OpenWeatherMap API and Weatherstack API need an API key?

Both require authentication (apiKey and apiKey).

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