@Disal
We don't know how much diving experience you have, however given your question, probably not a lot.
You need to know how comfortable you are in specific temperatures i.e. 70F 80F etc., and that would be my starting point.
Also how many dives do you plan to do? One dive a day or multiple dives per day over multiple days?
So what's your current experience with temperature and thickness of wetsuit?
We don't know how much diving experience you have, however given your question, probably not a lot.
You need to know how comfortable you are in specific temperatures i.e. 70F 80F etc., and that would be my starting point.
Also how many dives do you plan to do? One dive a day or multiple dives per day over multiple days?
So what's your current experience with temperature and thickness of wetsuit?