Hi we have been to this area many times,depending on which hotel you are in,St pauls bay is very quiet at one end with the marina,then yuo have Buggiba square,lots of bars,resteruats,couple of clubs,5 mins walk Qawra,near bus ststion,lots more.Be sure to walk the back streets and you will findgreat bars everywhere,you wont get lost.
If you want a crazy night out get a taxi to St julians,its rocking.Get taxi price first.
Hope this helps,have a great time.
P.s when it rains if it does it stiill very wam and just stops suddenly,then sunshine!!!
Justin,43 years old and still rocking.