Hi i dont do much surfcasting here in Goa (nothing but catfish in the sand) but i do a lot of it in Portugal.
Since you will be trying to cast behind the break of the waves, distance is what you are looking for.
Go for a long rod 4,5m to 5,5m.
The strength of the rod depends on how much weight can you cast on it.
I think a 180g max is more than enough.
If you plan to hold the set in your hand all the time pay attention to the reel/rod wight combo, trust me after 4, 5 hours holding a 5m rod with a 1,5kg reel you will remember this.
I usually get a pvc tube 1m long and use it as a rod holder.
Hope this helps, and good luck