Water temps in Coz in December?

[ECPaul]

We're thinking about returning to Coz for a week of diving the week before Christmas, and want to know if anyone has a good idea of what the water temps should be then. Is there a graph showing the water temps throughout the year (has to be, but I haven't found it yet).

Gracias mi amigos....

 

[Otter]

We're thinking about returning to Coz for a week of diving the week before Christmas, and want to know if anyone has a good idea of what the water temps should be then. Is there a graph showing the water temps throughout the year (has to be, but I haven't found it yet).

Gracias mi amigos....

I am sure someone from Cozumel will respond, but I have been there in Jan and Feb and the water temp was 78F.