Documentation
Documentation for Weather Data, the Weather API and its uses in code, programming, data science and other applications.
Unit groups and units of measurement
The Weather API includes a unitGroup parameter that controls the units of measurement used in the response. This article lists…Visual Crossing / July 9, 2026
Defining the icon set in the Weather API
The Visual Crossing Timeline Weather API can return an icon value for each daily, hourly, and current-conditions weather record. This…Visual Crossing / July 7, 2026
Tutorial: How to Build a Weather Dataset for Download, Bulk Import or Scheduling
If you have ever tried to download weather data for your specific location(s), timeframe and format needs you will know…Visual Crossing / July 6, 2026
How to Add a Weather Forecast to Your Website
Adding a weather forecast to a website can be as simple as retrieving forecast data from a weather API and…Andrew Wigmore / July 4, 2026
How to Find and Manage Your Visual Crossing Weather API Key
The Visual Crossing Weather API is a RESTful API that provides historical and forecast weather data. API queries are secured…Visual Crossing / July 1, 2026
How to look up weather by address
The Weather API and Weather Data Services page allows the user to request weather data by a location value. The…Visual Crossing / June 23, 2026
How to Debug Weather API Requests in Your Code
This article provides suggestions on how to troubleshoot and resolve some of the common problems we see when people attempt…Visual Crossing / June 23, 2026
How to include astronomical data (sun, moon, twilight) in your Weather API requests
In addition to providing historical weather observations and weather forecast data, the Weather API also provides a full set of astronomical information.…Visual Crossing / June 19, 2026
What is the difference between temperature, heat index, wind chill, feels like temperature, apparent temperature and RealFeel Temperature?
A weather forecast may report an air temperature of 90°F but say that it “feels like” 100°F. In winter, the…Visual Crossing / June 18, 2026
What is the difference between rain, sleet, snow and ice precipitation types?
The weather data returned by the Visual Crossing Weather API and Data Query Builder includes both the amount of precipitation…Visual Crossing / June 17, 2026
How Your Data Is Used Within Visual Crossing
Visual Crossing is designed to minimize the customer information required to provide weather data services. For most Weather API use…Visual Crossing / June 17, 2026
What is the cause of “Maximum concurrent jobs has been exceeded”, HTTP response 429
The error: with HTTP response code: means that your account is attempting to run more Weather API requests at the…Visual Crossing / June 16, 2026
