Solcast
DAILY solar irradiance data

Solcast models the incident solar radiation in real-time, worldwide

2025 Solar: How much did weather impact your solar production? Explore the interactive global anomaly data.

Global Horizontal Irradiance On

Real clouds, real data. Designed specifically for solar energy applications. Real time and forecast irradiance and PV power data based on 3 dimensional cloud modelling. Powered by live satellite data, updating every 5 to 15 minutes. Ready to integrate via API.