Open all year

armourer

is there a list of club sites that are open all year ?

Readytogo

Yes.

https://www.caravanclub.co.uk/uk-holidays/uk-sites/club-sites/open-all-year-sites/

SteveL

Make sure you use the map, as the shown list is only a selection. It does say that but in not particularly large script.

Wherenext

I know you asked about club sites but you can see  more sites that are open all year on here:

www.ukcampsite.co.uk

There's a section in the campsite search that allows you to choose all year and they then break it down by area, usually by county.