20+ weather parameters optimised for the solar energy industry, from 2007 to 7 days ago.
Combining Solcast's three dimensional cloud modelling with a flexible API.
Trusted in 24x7 operations by 30,000+ users worldwide, including these brands.
Cloud and Irradiance tracking
Tracking the world's clouds in the finest detail
Designed for Solar, from the ground up. Never rely on generic weather model data again. Solcast's real time and forecast data tracks and forecasts real clouds at a resolution of 1-2km and 5 minutes. Our irradiance and PV power data is updated every 5 to 15 minutes. Aerosol and albedo effects are explicitly treated.
Full suite of high resolution weather data
Other weather data from leading reanalysis datasets completes the full suite of 20+ parameters available at 5, 10, 15, 30 and 60 minute resolutions. Coverage from 2007 to 7 days ago.
We provide upfront and clear accuracy and validation information
Be confident that our data is fit for purpose.
Explore up to date, independent validation statistics at locations similar to your area of interest.
Download time series data on demand with the Solcast API Toolkit
Direct API download for TMY P50 data. Customise downloads according to the time resolution and parameters your project needs.
Bulk downloads for up to 20 locations at at time. Choose from multiple file types, ready for upload to your favourite PV simulation software.
First 3 requests free.
Paid plans from $99/month.
Includes 100 requests /month
Includes 400 requests /month
Includes 2500 requests /month
Each request includes 1 year of data at 1 location
Time Series Data Specifications
Global, except for ocean and polar regions
January 2007 to 7 days ago (for past 7 days to present time and forecasts, use our Live and Forecast data)
5, 10, 15, 30 & 60 minutes (period-mean values)
2km (irradiance and cloud parameters, over all non-polar continental areas and nearby islands)
The following data parameters are available.
Via the Solcast Web Toolkit
|Download wait time|
Typically 5 minutes
Solcast standard, PVsyst (60 minute only)
UTC (default for Solcast), longitudinal (default for PVsyst)