Post a picture of the Speedo.
?
This question gets asked often about each and every dive destination.
A
real question would be:
What will the water temps be?
Answer: 78~82 degrees, somewhat higher (84 or so) in the shallows of the South side.
Only you can decide what that will mean to you, and with your high number of logged dives shown in your profile, the answer should be easy.
The relevance of me telling you that
I do it in a Polarfleece is
ZERO. Same with what anyone else might describe. It depends on the individual.
The part of the equation that you left out.... only you know
how many dives you plan on making throughout the day. Where I go on Roatan, we do 5x a day including a night dive. Repetitive dive schedules will sap your core temperature. Many visitors do day-dive ops or are less frantic in their diving... they might do two or three maximum.
Understand this as well.... January in Roatan can also present you with some decidedly cooler Surface Interval temperatures if you are out on a boat waiting for your next dive. Smart travellers pack a Goretex parka that serves well as rain gear and an excellent wind break.
If it's colder than you prepared for, the better dive ops will have rental suits... but make sure you're first in line... especially if your an "
odd shaped bottom dweller".
Only you can decide how your body will react to the available weather data.