Hey steph, ur coming at the tail end of the season and it wouldn't be uncommon for conditions to "trough out" for 3/4/5/6 days at a time leaving you stranded on the beach

In Lancelin you can only kite when it's blowing side, side-on or onshore.
March and even April can have some good offshore conditions especially early in the morning so places on the Swan River around Perth or even Rottnest really go off

Just something else for u 2 think about...