That's a tough question because it depends upon the person. The average high temperature in January in Lake Buena Vista (aka Disney World) is about 71 F (22 C). The average low is about 47 F (8 C).

Statistics Source: https://weather.com/weather/monthly/...6675667ea7ca09

Most of us warm-blooded Floridians aren't going to be hanging out by the pool. But if you're from somewhere were sub-zero temperatures are common, our January weather might feel wonderfully warm. Most pool are heated, too. So it's really only chilly when you're wet and out of the water.

And of course, that's just the average temperature. The record highs in January are in the mid to uppers 80s. It wouldn't be crazy to have temperatures be in the uppers 70s.