Hi Robin!
Welcome to the Disney Parks Moms Panel! Ooo, you're planning on visiting
Walt Disney World Resort during the most magical time of the year! There's something so special about spending the holiday season at Walt Disney World! The decorations at all four theme parks are beautiful and will put you right in the spirit of the season!
Another reason I love visiting Mickey during the month of December is the weather! In my opinion, you will not need a misting fan if you visit in December. I've vacationed at Walt Disney World the past two Decembers and it was cool enough during both trips that I was comfortable in jeans and a T-shirt. The evenings do get a little cooler, so I usually bring a fleece or sweatshirt to wear later in the evening, and just tie it around my waist during the day. The average high temperature is 74 degrees whereas the average low temperature is 56.
Robin, as your vacation gets closer, definitely keep an eye on the projected 10-day forecast just in case it's a particularly warm December! I'm wishing you a Disney vacation filled with holiday memories! If you have any other questions, please come back and visit us again!
Beth