We were there this past January, 10 days before MLK weekend and when we arrived the temp was in the 60's. We stayed at WL and going past the pool area put our foot in, water was like bath water, heated extremely well. The next day the temps soared but in the am, steam coming off the pool water with the cooler morning temps. Great to jump and and cool off but it's the getting out that's tough. Also walking back to your room in a wet bething suit is not to my liking, suit feels like its been in a freezer. Very doable no matter what the temps are, Disney pool at WL was heated quite well for our January stay.