OpenWeatherMap

API

Comprehensive weather data API for global forecasts and current conditions

Overview

OpenWeatherMap API provides RESTful endpoints for current weather, 5-day/3-hour forecasts, 16-day daily forecasts, air quality metrics, and severe weather alerts across global locations. Responses are in JSON format, supporting metric/imperial units and multiple languages. Use cases include integrating weather updates into mobile apps, travel planning platforms, agricultural monitoring systems, and IoT devices for environmental sensing. It also offers geocoding to convert city names or ZIP codes to coordinates for precise data retrieval.

Example Integration (JavaScript)

script.js JS


fetch('https://openweathermap.org/api')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful
JSON Support
Global Coverage
Multiple Forecast Types
Air Quality Data
Unit/Language Customization

Frequently Asked Questions

? Is OpenWeatherMap free to use?

Yes, it offers a free tier with limited calls and basic features; paid plans unlock higher rate limits and advanced data like historical weather and detailed air quality.

? Does it require an API Key?

Yes, all endpoints require an API key for authentication, which can be obtained by signing up on the OpenWeatherMap website.

? What is the response format?

The primary response format is JSON, which is lightweight and easily parsable for most applications.

Top Alternatives

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Tool Info

Pricing Freemium

Category Weather

Platform Public API

Pros

⊕ Easy Integration
⊕ Extensive Documentation
⊕ Free Tier Available
⊕ Wide Data Coverage
⊕ Reliable Performance

Cons

⊖ Free Tier Rate Limits
⊖ Advanced Features Behind Paywall
⊖ Occasional Latency for Remote Areas