I was there at the end of January this year. Weather was beautiful, very hot during the day (80-85) and sun was strong. Others we spoke to said it was unusual though and was due to El Niño. Resort was not crowded, however I'd recommend getting pool chairs early if you are going to swim and do the lazy river. On our last evening it was kinda cool out, we went across the street for dinner and I wished I had worn a light sweater or sweatshirt.