OpenWeatherMap

OpenWeather provides APIs for current conditions, forecasts, historical weather, pollution, energy, and environmental data.

openweathermap.org
OpenWeatherMap homepage screenshot

About OpenWeatherMap

OpenWeatherMap is a weather, energy and environment data platform that provides global data through APIs. It covers current conditions, forecasts, historical weather, air pollution, solar radiation, road risk and solar energy insights.

You can use it to add live observations, hourly and daily forecasts, minute-level timelines, national alerts and historical archives to apps, dashboards, analytics and operations. Data is available via API or bulk files, with documentation, quickstart examples and self-service subscriptions. The One Call API 4.0 combines several data types in a single timeline-based call, and there are options for enterprise use, industry solutions and automated agent access.

It suits developers, analysts and businesses that need to integrate weather data into products and workflows. General users can view basic forecast examples on the site, but full use requires working with APIs.

Key features

  • Current weather data for any location via API
  • Hourly, daily and minute-level forecasts with national alerts
  • Historical archives with 47+ years of hourly records
  • Air pollution, solar and road risk data
  • Access via API or bulk files with docs
Best for: Developers, analysts and businesses that need to integrate weather data into apps and operations.
Good for
  • Covers current, forecast, alerts and history in one place
  • Provides API or bulk file access with documentation
  • Includes enterprise, industry and agent access options
Watch out for
  • Requires API integration, which suits technical users

OpenWeatherMap at a glance

Type
Website
Pricing
Freemium
Platforms
Android, iOS, Web
Open source
Not stated
Language
English
Good for
Developers
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026

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OpenWeatherMap FAQ

What data does OpenWeatherMap provide?
It provides APIs for current conditions, forecasts, historical weather, air pollution, solar radiation, road risk and energy data.
How do developers access OpenWeatherMap data?
Data is available via API or bulk files, with documentation, quickstart examples and self-service subscriptions.
Does OpenWeatherMap offer free API calls?
Yes, the One Call API 4.0 starts with 1,000 free API calls per day, with pay-as-you-call options to scale.
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