The Cayman Climate.

Summer or winter, the weather in the Cayman Islands seldom changes, with a year round average temperature of 78 degrees Fahrenheit and highs of 90 degrees Fahrenheit, the Cayman Islands is a wonderful place to go on vacation or live. The coolest season falls between November through to April. The rainfall is comparable to that in Florida with an average monthly rainfall of 4.7 inches. Click here to view the current weather.