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Cayman Islands

Grand Cayman Average Monthly Weather

Cayman Islands Climate Chart
MonthMean TemperatureoFMean Total Rainfall (mm) Mean Number of Rain Days
Grand Cayman's average weather is one of the hottest in the Caribbean.

The Cayman Islands also happen to be one of the hottest destinations to visit in the Caribbean.

Grand Cayman, the main island in the chain, is one of the most popular cruise ports in the region. Visitors land at the capital of Georgetown and often take advantage of Seven Mile Beach, Stingray City and Cayman Turtle Farm.

The island is especially popular on western Caribbean cruises that often include Jamaica, Roatan and Cozumel.


The islands have an average high temperature that reaches into the 90s during the summer. It is one of the few Caribbean destinations to get that hot.

The average high temperature ranges from 86 degrees Fahrenheit in February to 92 degrees from June through August, according to historical records from the National Meteorological Service of the Cayman Islands.

The average low temperatures range from 65 degrees in February to 74 degrees in June.

Although warm days make the island inviting in the winter, the cool nighttime temperatures bring down the comfort level in the water. Caribbean trade winds make swimming even more chilly during the winter.


The Cayman Islands have a distinct dry season and rainy season.

The dry season runs from January through April with average rainfall of about two inches. The number of days that it rains each month is about 10.

Rainfall increases from May through July to more than five inches a month. It jumps again and hits a high point of more than eight inches a month in September and October during the peak of the annual Caribbean hurricane season.

Anyone planning a cruise to the Cayman Islands may find that April is one of the best months to go for a combination of warm temperatures and low risk of rain.
Scott S. Bateman is a professional journalist who has traveled widely throughout the Caribbean and the Americas.

 > Category: Climate   

December 07, 2015
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