Climate Cayman Islands
The Cayman Islands have a subtropical climate, i.e. a pleasant climate all year round. The coolest months, in which the main season is at the same time, are December to the end of March. Average air and water temperatures in the winter months are about 24°C, in the summer months the thermometer usually rises to 27°C.
Most rain falls in the months from May to October. Usually heavy showers, but only short ones, fall.
High season is from December to March.