← Cayman Islands
Sea temperature in Cayman Islands in December
27°Ctropical · monthly average
The sea around Cayman Islands averages 27°C in December. Warm enough for relaxed swimming with no wetsuit needed.
Monthly sea temperatures across the year
Best swim months
Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
Warmest month
June (29°C)
Coolest month
January (26°C)