Just spent some time down around Albany. As Hilly said, if you are lucky enough to get a bit of northerly wind, all good.
Nanorup just east of Albany is a good SUP wave and has plenty of sheltered breaks, Mutton Bird on the other side of Albany is good and bigger than Nanorup and Denmark 50km west is fantastic with light winds. Make sure you let your tyres down when hitting the beach - sand is soft.
I havent hit Yallingup on the SUP yet (plenty of sessions on the longboard). This is fantastic and if the swell is up you can surf Hussas at Cowaramup (this is ok when the wind is southerly)
Beautiful part of Oz..