Learn About the Weather of the Cayman Islands

The Cayman Islands deliver warm and sunny weather almost every day throughout the year

Photo credit: © Brett Critchley | Dreamstime.com

Cayman Islands Weather

Visitors to the Cayman Islands can enjoy balmy weather year-round, with relatively little rainfall to hamper their vacation. But before you start packing, learn a little bit more about Cayman weather.

The Cayman Islands have a tropical marine climate, which means that temperatures range from 77 to 95 degrees Fahrenheit, and there are two seasons: a wet season and a dry season.  True to its climate classification, average annual temperatures in the Cayman Islands range from 77 to 85 degrees Fahrenheit, and experiences its wet season between the months of May and November, and its dry season between December and April. 

...trade winds offer a cooling effect...


The dry season on the Cayman Islands coincides with what is considered to be the tourist high season.  Temperatures during these months are cooler than the off-season, but still much warmer than the temperatures than northern visitors are experiencing during that same time.  The average high temperature during the high season is 82.4, while the low is 74.4.  Though this time is called the dry season, that does not preclude rain from falling.  Rain is a possibility, though to a lesser extent, and these months average only 1.88 inches of rain.   

The wet season, meanwhile, averages about 6.9 inches of rain, with September and October being the wettest months.  This is also the time of year when heat and humidity spikes, and see temperatures ranging between 77 and 88 degrees Fahrenheit.  Humidity varies, but can make temperatures feel up to 5 degrees hotter at times.  Luckily, northeast trade winds offer a cooling effect.

Another event that occurs during the off season is hurricane season, which runs from June through November.  While the Cayman Islands are subject to hurricanes, the chances of a direct hit are very slim. Storms generally turn northward before reaching the Caymans due to the islands' extreme westerly location.

More often than not, the islands will only get the heavy rains that come on the outskirts of a hurricane. Direct hits by major storms are so rare in fact, that many elder inhabitants of the islands still relate events in history as before or after "the storm," because they may have only seen one or two of significance in their lifetimes.  If you hear that a hurricane has hit immediately before your vacation, jump in to action. You may not have to alter your trip at all, but do call ahead to verify current conditions and the extent of damage to the island; you may also want to get a statement from local business owners as to whether they are conducting business or when they think they will be operational again.

The table below contains selected climatological data for the Cayman Islands.

Month Avg. Daily High Temp (Degrees Fahrenheit) Avg. Daily Low Temp (Degrees Fahrenheit) % Days with Rain
January 80.6 72.6 13
February 81.2 73.4 12
March 82.7 74.7 8
April 84.0 75.9 6
May 85.7 78.0 16
June 87.0 79.5 18
July 88.1 79.8 18
August 87.8 79.5 24
September 87.3 78.9 23
October 86.2 77.8 22
November 84.1 76.7 21
December 82.7 75.3 12

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