Will it be too cold for a 7 night December cruise?

[tvguy]

Well, that really is a subjective thing. The record coldest ocean temperature in the area of Castaway Cay is 72 degrees. I swim year round at my gym's outdoor pool that is heated to 70 degrees so for me, the answer is no, it is not too cold. We were on Castaway Cay on January 2 and what we noticed is, the AIR temperature is a bigger factor. It was drizzling all day but we snorkeled in the morning, and rented bikes (while still in our damp swim wear) in the afternoon and it was cool put comfortable. Yet, some people either never got off the ship, or went back before noon. My neighbors on either side have pools and they start using them when the water temperature hits 68 degrees. But I have to say someone from Manatee Bay, Florida, where water temperature has hit as high as 101 degrees might find the water too cold. LOL.

 

[MrMagoo]

Looking at the itinerary for that cruise, the coldest port you will have will be Castaway Cay.

And even that will probably be about like your summer in the UK.

I would think if you wanted to do that cruise any other time other than the winter months it would be to hot
for you coming from the UK.

The air temperatures will probably be in the upper 70's to low 80's Fahrenheit or 25-28 Celsius at most of the ports.
The water temperatures will probably be close to the air temperatures. Maybe warmer outside of Castaway Cay.

Another factor in your favor for December is the humidity will not be so bad!

We have been at Castaway Cay when the water was to cold for us but there was people in it from the UK that said it was
warm to them! And the water temperature was probably around 25 Celsius!

Good luck trying to convince your husband though.

But if you must change it, mid to late October through November might be better if you could go those months for that itinerary.