Find your weather data sets

Members of CIBSE receive 10% off their order, and student members of CIBSE receive 50% off.  Simply add your membership number to the order form, and your discount will be shown on your invoice.

Don't know your membership number? Please contact [email protected].

You will need to buy additional licences if you expect more than one person to use the CIBSE 2025 weather data you purchased. Licences are assigned to individual users with separate software accounts and do not permit simultaneous use by multiple people. 

Please note there is currently an issue where some users cannot access their knowledge items, including Weather Data, on their MyDownloads page. If your Weather Data files do not appear on that page after purchase, please email [email protected]