Many clubs close for the summer season

I guess that's a swings and roundabouts one depending where in the UK you are thinking of, Nutty. The clubs I was involved with, Llandudno and potentially Conwy (although in my memory it always kept a good core of regulars) was the winter. The long drag in Llandudno came after Christmas - I think we closed for 2 weeks and didn't book guests for a couple of months. Summer with holiday makers around was easy.