Only you can prevent forest fires, and only you know the answer to your question.
All that you can be told is that the water temp should be getting fairly warm, 80-84 degrees more than likely.
What this means to you is something that you will learn over time. If you dive enough years, it will change as you age, but for now- keep records and make observations in your log book.
How you, your own body, reacts to that only you can know.
I'm okay at 5x a day in that with a polarfleece. My dive buddy needs a 3/5, and might wish she had brought her 5/7, but she is decidedly exothermic. A beanie hood is always easy to pack and add or delete as you wish- and delivers immediate and obvious impact in terms of body heat loss/retention.
Repetitive dives, combined with circulation, muscle condition, % body fat, air consumption rates, exertion and comfort levels all play a part.
What I or anyone else wears is mere jibberish. No one here knows any of the above descriptors as they apply to you.
Only you can tell. Prepare for the worst, hope for the best. Take all of your exposure gear, or be ready to rent some. You can always decide to not wear something, it's hard to use it on any give day if it's back in your closet.
Personal eperience will be your best source.