Not sure Tractor. I haven't been there much lately because there hasn't been much wind. There is always the usual on shore wind blown stuff when I have gone down there.
Can't help much with kite sizes (I'm a windsurfer). However if the wind blows it is often a south easterly usually 15-25 knots. If it helps I am about 70kg & use 5 & 6.5 sails. See you soon.