Anytime withna sw wind, before a front oct thru march.
Imho the best time for wahoo begins with the October full moon and ends in February. Ideally you want to fish just before a pressure change. Problem with that is it usually gets rough as the front moves thru. Another good time is when you have a strong tidal flow a couple of days on the backside of the full moon. We have caught the majority of our wahoo, since 1988, directly west of Bimini Sands. As soon as you hit 150' start following the drop off heading south.
If you need more info., please feel free to pm me.