St Kilda, Altona, Brighton all good in southerly.
Brighton passable in a northerly but these are normally gusty.
All 3 are 15 - 20 mins from city centre except in peak hour traffic.
Rye in northerly is 1 hour drive.
12m bow will suit 90% of days

Check out
http://www.kbv.org.au/for Victorian kiting info
Southerly seabreeze wind goes from sometime march onwards until about now, which is when you go to Rye.