At the moment... friggin never! Short daylight hours and erratic winds... Grrr
In the summer months with, heaps more. Mostly on weekends but I can grab an hour or so after work once or twice a week. It would be lots more if this Wowzer state had daylight savings!!


. Good winds 5 out of 7 days so lots of opportunity
If you are thinking of taking it up my suggestion is "invest". Invest in lessons, invest decent gear (ask your instructor for his/her advice and don't go too cheap) and invest in time (you will need lost of practice before this sport becomes awesome and once a week won't be enough initially).
I'd suggest pinaroo or leighton to practice as there are less waves to cause dramas.
Best of luck