cloud-cover

Solar Radiation and Cloud Transmissivity: What WeatherAPI Actually Gives You and How to Use It

WeatherAPI Team / September 1, 2026

WeatherAPI returns solar radiation data — but what does it actually measure, where does it come from, and how should you use it in real applications?

API

Why Cloud Cover Percentages Are Lying to You (And What to Use Instead)

WeatherAPI Team / August 30, 2026

Cloud cover % from weather APIs is a model output, not a measurement. Here’s what the number actually means, where it breaks down, and what to query instead.