I don't know when they heat them but I was at Pop Century August 19 - 29 and the pool water was HOT. One night we went in the Hippy Dippy pool after 10pm and the water was so hot I had to get out. It wasn't refreshing at all. The same was true of the Bowling Pin pool.
AKL jambo house pool was really cold to me today. And there were too many bees all over but that's another story.
I just read another thread from someone complaining about the bees at the Jambo House pool today too! Not good, I really hope they are gone before we arrive in a couple weeks!
We would never get in our home pool once it dropped below maybe 88 degrees (like I said, we didn't have a heater).