It's a long way from New Jersey, there is surf then, cyclones in the Coral Sea and general winter stuff in southern eastern seas will mean there will be swell.
Since you are from jersey shore etc you won't find the water cold boardshorts and rashie or at most a 1mm top.
Mornings cool, days warm. Potentially very pleasant
Lots of night life.
What you do need to realize is that 200,000 traveling surfers of all makes sizes and ability descend on the Goldie

as it is like Florida ( much better surf though) for lots of Aussies too who don't go to Bali or elsewhere to avoid the winter further south.
The good surfers on the Goldie are excellent, the rest are carnage in the making, lots of spots, explore some of the lesser name beaches and the beach breaks you might get an uncrowded surf.
If you like company then Snapper Rocks, Kirra, Currumbin all can do it for the masses.
Me, with the Aussie dollar so high I go elsewhere!
But I think the possibility of fun is there for you. Australia is nothing like you've seen back home if the surf doesn't do it for you go out and play tourist
