This is a good starting place to look
http://www.windwanderers.com/Locations.htmlthis time of year you are most likely to get westerly winds NW, W or SW, or due southerly winds
it really only leaves you with a few limited options locally for reliable wind, that being
Wellington Point - 1 hour Drive
Victoria Point - 50 minute Drive
The Shearwater - 12 minute drive but will really only work if wind is blowing in opposite direction to tide
There are other spots that can
sometimes work in winter but just not as popular
Cheers