What this API does
The OpenWeatherMap API provides developers comprehensive access to real-time weather data and forecasts worldwide, covering over 200,000 cities. It offers current weather conditions, 7-day forecasts, and detailed historical weather information. The API supports querying by city name, geographic coordinates, or ZIP code, allowing flexible use in a variety of applications.
How it works
Developers can send HTTP GET requests to retrieve current weather, forecasts, and air quality data. Integration is simple with support for JSON response formats, making it suitable for various programming languages. Example endpoints include current weather data retrieval and 7-day forecasts using parameters like city name or coordinates.
Authentication
Accessing the OpenWeatherMap API requires an API key, which can be obtained by creating an account on the official website. This key must be included in all API requests for authentication purposes.
Example usage
/weather?q={city name}&appid={your api key}- Retrieves current weather data for the specified city./forecast?q={city name}&appid={your api key}- Provides a 7-day weather forecast for the specified city./air_pollution?lat={lat}&lon={lon}&appid={your api key}- Fetches air quality data based on geographical coordinates.
Limits
Each free account can make up to 1,000 API calls per day. To increase this limit, higher usage plans are available on the official website.
Ideal use cases
- Integrating live weather updates into mobile and web applications.
- Creating dashboards for operational weather analysis.
- Building smart home systems that adjust based on weather conditions.
- Utilizing climate data for research and educational purposes.