We were there in Nov 04, and it was in the low twentys during the day, and then in the teens at night. But to be honest, the water in the pools at WDW is like super heated, so when the air is cooler, the pool seems that much warmer. The worst part was getting out of the pool. I was usually swimming later in the evening too. I froze going from the pool to the room. But the water was great, it felt so good after a day on your feet in the parks.