What is Magaluf/ santa posa like in late september????? 10 pts?

i am going on the 19th of september .... BCM's calender goes blank on the 14th.... it is a lads holiday.... will there still be plenty of women around... plenty of nightclubs open..... good atmosphere?????? or just full of old couples....... oh and by the way, we had to go on this date as it was the only week we could all get off together