Planning to be there starting Saturday and have been checking the forecasts for weather. I know it's always a guess but The Weather Channel and AccuWeather seem to be way apart on their forecasts with Accuweather predicting much better temps. The Weather Channel has night temps going down to as much as 60F....B-r-r-r! Is there a fairly reliable forecasting agency for Cozumel? And, does anyone provide water temps?