Hi Beoaus,
I presume from your name that you are in Australia, if you are looking for true all weather speakers then most of the models are a cabinet/satellite type speaker, if you just want a moisture resistant type then Monitor Audio & Kef in-ceiling & in-walls are suitable for a semi exposed location * both sound pretty good to boot, my leaning would be towards the Monitor Audio as they will compliment the passive very well due to there neutral sound.
Simon