← Cayman Islands
Sea temperature in Cayman Islands in May
28°Ctropical · monthly average
The sea around Cayman Islands averages 28°C in May. 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)