I was there two days after Thanksgiving in 2013 and agree that it was a great time to go. The weather was perfect, and it was the only time I have stayed an entire trip with no AC and it was not of much concern. The weather was great, the beach was chill with near zero hassle, and businesses were getting ready for High Season to kick in. Reggae Marathon takes place the week after if you are interested. I would pass on Cancun, especially since the Sargassum is taken over the beaches. I changed my next trip from the Yucatan back to Negril due to the Sargassum issue, which is not an issue in Negril.