The waters in Bermuda are tremendously blue and mostly very warm!
In summer, temperatures get up to a toasty 32 degrees Celsius (89-90F), but can get a little chilly in February down to 17 or 18 degrees Celsius (63-64F).
The water is also quite salty. The Sargasso sea surrounding Bermuda is rumoured to be the third saltiest in the world after The Dead Sea and The Red Sea.
The tides are not huge but average around three feet in difference. Due to the reef structure, most places are better in low tide, and some places only exist on low tide as some beaches only appear below a certain sea level.