Hi mate, I'm no local but the last time I fished there was October long weekend. I run navionics on my pad and use the marks that are on there, also too the Marine rescue app has some marks that are close to Ulladulla.
Lives not sure, but there's plenty of weed and kelp in the harbour, squid maybe. Outside I used some frozen squid and pillies.
Everywhere we dropped a line, fish were caught. Flatties, snapper, mowies, and barracouta.
Pick a mark with some contour lines and you should be fine.
Hope that helps. Enjoy