Was it really 53F in Coz before sunup this morning? Coz airport and Cancun airport were both reporting temps in the 50s, but other sites in Coz were reporting 70s? All the weather sites can do is repeat what is given to them.
Yeah, I think it has been pretty chilly over night and in the early mornings, but warming up to the 70's quickly. Christi has been posting FB posts that indicate that is the case.
There are some dive ops and tour ops that go to El Cielo (Ceilo?), (I think it is near Punta Sur), and folks seem to like that quite a bit. Blue Angel, Albatross Charters & the previously mentioned Tiger all go there.
Also if you can stand the cattle boat, the Fury catamaran is kind of fun. You at least get out over the reef and not just in the shallows. We did it a couple times YEARS ago before my wife got certified.
We've spent the afternoon at Playa Corona before, not too bad snorkeling along there. Love that little place, wish they would rebuild their pier.
The 'Blue Angel shore dive'/Villablanca Shallows area isn't bad for snorkeling.
Between Casa del Mar and Papa Hogs is very nice.
I think there is some pretty decent snorkeling off San Juan beach at Buccano's Beach Club. My wife and some girlfriends recently went on a cruise and stopped on Coz & did Buccano's for the day and had a wonderful time. It had recently rained, so the water was stirred up and they didn't do any snorkeling that day.