Access to the Data

SILO products are freely available under the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Under this licence users can copy, modify and redistribute the data, provided you acknowledge SILO as the data source and indicate if any changes were made to the data.

The gridded datasets can be accessed using the methods outlined on our gridded data page.

The point datasets can be accessed using either our web interface or web API:

Web interface

An interactive interface that allows users to:

  • search for stations by name or number
  • view metadata about each station, including the amount of observed data
  • select stations and grid points
  • select the file format and variables required.

After you submit your request, SILO will prepare the data and it will be returned to your browser as a file download.

The web interface is useful for new users, and also for exploring the available point data (e.g. station number or the latitude/longitude of grid points) which can then be accessed programmatically using our web API.


The API provides a programmer's interface for requesting point datasets. It can be used for streaming data back to you in real-time, for:

  • display in your browser
  • use in your own custom application
  • archiving data using command line tools such as curl or wget.

To construct your API requests, you can refer to the API instructions and explore the available data using the interactive web interface.

The API is useful for automated or repetitive downloads.

Last updated: 7 July 2021