Hi Curt
We were there last July, and will be this July too - on 7th. The sea is shallow near the shore, and depending on the currents and wind it can be very warm indeed, or have trickles of colder moments at a different time. It warms up throughout the season, and when we were there in October the year before last I swam several times. It was much warmer than the pools! I don't do cold. Never.
And when I'm not swimming, I'm Mythos hunting....
Phil