They are typically heated to a balmy 82 degrees. All of the pools at Disney are open, and you can easily and comfortably enjoy family swimming, so don't leave the swimsuits at home.

Swimming at Walt Disney World in December is definitely possible and often quite enjoyable, primarily because all Disney resort pools and water parks are heated to approximately 82°F (28°C) year-round. While the air temperature in Orlando during December can fluctuate wildly—ranging from 50°F on a chilly night to 80°F on a sunny afternoon—the water itself remains warm. The "real" challenge is usually the walk from the pool back to your hotel room, as the December breeze can feel quite brisk once you are wet. Disney often closes one of its two water parks (Typhoon Lagoon or Blizzard Beach) for seasonal maintenance during this time, but the other remains open unless temperatures drop exceptionally low. If a cold front hits and temperatures dip below 50°F, Disney may temporarily close the outdoor pools for safety. For most visitors coming from northern climates, a sunny 70-degree day in Orlando feels like perfect swimming weather compared to the snow back home.