No, unless you stay above 25 feet and the only thing above 25 feet to see is the dive platforms. In August, expect about three thermoclines or so. The surface to about 25 feet will be nice and toasty in the mid to upper 70's. 25 feet to about 40 expect mid 60's give or take and then below 40 or 45 feet temps will vary btwn 50-55 in August. If you hit the bottom about 90 feet then you could get into the 40's in August. These temps also change a little bit depending on the season, but after almost 5 yrs of diving there this is my experience. Have fun!
Most will use 7mil, 6mil gloves, 6mil hood all season. I dive it dry all season and am glad I do.