Bula Pwogger,
September to December is a great time to visit many areas in the S.Pac, especially Fiji. Our tradewinds start to die down around this time which means nicer ocean conditions for scuba diving and we are still out of the "rainy season." Our rainy season is really afternoon thundershowers with nice blue bird days. Fiji is a great area to be able to visit a variety of diving without too many puddle jumping flights. From the main island Viti Levu you can board three liveaboards (Nai'a, Island Dancer and now Siren), then dive around the main island with areas like the Bligh Water (where we dive), Beqa Lagoon for the shark dive. We will often have divers split their holiday between Wananavu (us) and Beqa Lagoon Resort to see their famous sharks. We have also worked with guests staying aboard the Nai'a to arrange a transfer on the Nai'a's last night which is usually spent outside our resort. This makes it easy to avoid the transfer from Nadi back to the Sun Coast.
There are also some great diving if you want to fly to other islands like Kadavu, or Taveuni. But you can spend more than a week diving around the main island with little to no hassle other than boarding a private transfer. Good luck with your wedding plans and please let us know if you have any questions about us or Fiji.
Cheers,
Chris, Vicky and the Dive Wananavu Team