hey! I just move to sydney and I've been driving around some bays but I haven't found the wind. can anybody tell me when does the wind season begin

I'll appreciate if some one tells me where is the best spot to learn. my wife wants to learn but so far we haven't found the place.And could someone tell me how wind works around here. Once from the m1 at the airport I saw some windsurfers having a blast at botany bay , but I haven't seen them again ....I guess because there is no wind.Thanks for sharing some tips around sydney.cheers!!!!!!