How much of a beginner?

Hopefully you are totally comfortable on your bike, know how to use your gears and have a reasonable speed and stamina built up.

You are not ready to join a cycle club if you-

1) Cannot remember which way to change your gears up and down, or don't set your gearing up so you can climb a hill (and either always drop your chain or have to get off your bike because you are in the wrong gear).

2) You cannot ride the normal distance the club rides

3) You cannot maintain the average speed the cycle club advertises their beginner ride goes at.

If that is you above I would suggest riding for a couple more months by yourself before joining a club and getting used to your bike and riding more. Most clubs cannot take absolute newbies to cycling, because a lot of cycling is yourself learning first as well as safety (you have to be able to brake fast, ride smoothly etc when riding in a group).

To enjoy your club rides and not feel like a hinderance it's a good idea to get experience first. However if you do tick all the boxes go ahead and try a cycle club!