Visual Crossing
Global historical and weather forecast data
- Authentication
- API Key
- HTTPS
- Yes
- CORS
- Yes
- Category
- Weather
- Data source
- public-apis + marcelscruz
- Documentation / URL
- https://www.visualcrossing.com/weather-api
Overview
Visual Crossing Weather provides historical, current, and forecast weather for any location, plus a big selection of weather variables (temperature, precipitation, wind, solar, snow, air quality). Key-based REST API with a free tier — popular for agriculture, energy, and logistics use cases.
Quick Start
Timeline weather (replace YOUR_KEY):
curl "https://weather.visualcrossing.com/VisualCrossingWebServices/rest/services/timeline/Paris?key=YOUR_KEY"Historical range:
curl "https://weather.visualcrossing.com/VisualCrossingWebServices/rest/services/timeline/Paris/2026-08-01/2026-08-10?key=YOUR_KEY"Include air quality / solar data:
curl "https://weather.visualcrossing.com/VisualCrossingWebServices/rest/services/timeline/Paris?key=YOUR_KEY&include=alerts,current,days"Authentication
- Register at visualcrossing.com for a free API key (emailed).
- Send it as the
keyquery parameter (an invalid key returns 401 — verified). - Free tier: 1,000 calls/day, up to 1,000 locations — among the more generous weather free tiers.
Rate Limits & Notes
- Free tier: 1,000 requests/day; paid plans scale up.
- The “Timeline” endpoint is the workhorse:
timeline/{location}ortimeline/{loc}/{start}/{end}. - Rich output: hourly/daily breakdowns with 40+ variables;
include=selects sections. elements/columnsparams let you trim the response to specific variables.
FAQ
Is Visual Crossing free? Yes — free tier 1,000 requests/day (one of the bigger weather free tiers).
How do I get a key? Register at visualcrossing.com — the key is emailed.
What can I build with it? Weather dashboards, farming/energy planning, historical analysis, and location-based alerts.