Monthly Averages

Useful during the early stages of solar site prospecting when a coarse energy estimate is acceptable, or for smaller rooftop systems.

Solcast provides averaged monthly values of solar radiation data and other weather parameters. Monthly averages provide a high-level overview of the solar resource available at a particular site. They are useful during the early stages of solar site prospecting when a coarse energy estimate is acceptable, or for smaller rooftop systems.

See details on the Solcast pricing page

Monthly Averages Data Specifications

CoverageGlobal, except for ocean and polar regions
Spatial resolution of satellite data used1-2 km
Time granularityMonthly
Timespan of database used to generate monthly averagesJanuary 2007 to 7 days ago
Parameters
  • Global Horizontal Irradiance (GHI, W/m2)
  • Direct Normal Irradiance (DNI, W/m2)
  • Diffuse Horizontal Irradiance (DIF, DHI, W/m2)
  • Temperature (TEMP, °C)
  • Wind Speed (WS, m/s)
Database update frequencyDaily (recent months are considered in monthly averages)
Access methodData can be ordered and downloaded via the Solcast API Toolkit
Download wait timeTypically 1 to 9 minutes

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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 9 minutes of submitting your request.