Wind Solar Radiation Data - Historical and TMY

Historical time-series solar irradiance and meteo data in popular formats, validated globally

Proven, accurate, bankable data

Solcast has been on a mission to advance the state of the art in cloud and radiation modelling.

Our team of meteorologists, data scientists and engineers started in 2015 by building the most sophisticated global real time irradiance service (the Solcast API), in concert with radiation modelling expert Dr Nick Engerer and his team of scientists from the Australian National University. After the API became operational, Solcast’s meteorologists and data scientists moved focus to the history of satellite and aerosol data globally - with the goal of applying their improved technology to produce the most accurate, lowest uncertainty historical irradiance estimates.

Using the highest resolution satellite and aerosols data, we detect our own clouds with industry-leading models. Our dataset reduces risk for developers, and lowers uncertainty in energy simulations by accurately modelling solar irradiance and weather data for 12+ years. Our solar data is available as Time Series, Typical Meteorological Year (TMY), and Monthly averages.

Building the solar future with industry leading technology

  • 3D cloud tracking & geometry
  • Aerosol tracking
  • Clear & cloudy sky calibration
Raw data
Line chart

How we made it easy

Sign up and instantly claim your free historical credits

Create your free user account to access the Solcast API Toolkit. You’ll receive free historical credit to try our Historical and TMY data for yourself.

Select your data

Select the data product you need.

Select your data period and parameters

For time series select the period and parameters for the request.

Download your data (1-3 minutes)

Grab a quick coffee as your request is processed and available to download within minutes.

Test now, free

Get free historical data credits when you sign up, so you can try our data for yourself. You can download data automatically within around 1 to 5 minutes of submitting your request.