Is your current account a student account? If so, its terms should apply for another year at least (i.e if you had an interest-free overdraft, that should remain interest-free etc.). I would talk to the bank manager and explain. So they can keep your existing terms and conditions for another few months until you become student again. But if it isn't a student account, you may not be able to open one until October.
I am with Smile bank and they are very approachable when things get complicated.