WeatherAPI

Overview

WeatherAPI.com bundles weather with extras: current conditions, forecasts, history, marine weather, astronomy (sun/moon), and a geolocation API — all behind one simple key. CORS-enabled, with a free tier that covers light apps.

Quick Start

Current weather (replace YOUR_KEY):

curl "https://api.weatherapi.com/v1/current.json?key=YOUR_KEY&q=London"

Forecast (up to 14 days on higher tiers):

curl "https://api.weatherapi.com/v1/forecast.json?key=YOUR_KEY&q=Paris&days=3"

Astronomy (sunrise/sunset, moon phase):

curl "https://api.weatherapi.com/v1/astronomy.json?key=YOUR_KEY&q=Tokyo"

Search/lookup locations:

curl "https://api.weatherapi.com/v1/search.json?key=YOUR_KEY&q=berlin"

Authentication

• Register at weatherapi.com for a free key (instant).
• Send it as the key query parameter.
• q accepts city, lat,lon, US ZIP, or UK postcode.

Rate Limits & Notes

• Free tier: 100 requests/day (verify on the pricing page — it’s small, paid tiers scale up to 1M+/month).
• The free tier covers current + forecast (up to 3 days) + astronomy + timezone; history and higher forecast days are paid.
• aqi=yes / alerts=yes add air quality and weather alerts (tier-dependent).
• CORS is enabled — browser calls work (good for client-side widgets).

FAQ

Is WeatherAPI free? There’s a small free tier (about 100 requests/day); higher limits and history are paid.

What’s included? Current weather, forecasts, astronomy (sun/moon), timezone, marine data, and a geolocation API.

Can I call it from the browser? Yes — CORS is enabled.