Cayman's temperature is quite typical for that of a 'Caribbean' island. Balmy warm days that cool off slightly at night with a light breeze blowing in from the Caribbean sea. There is a definite rainy season where locals can almost expect to be met with an afternoon shower over their lunch break like clockwork ... so remember to pack your umbrella!
The most pleasant weather in Cayman is during the winter, from mid-November to April. During this time there is little rain, brilliant sunshine and a constant cool sea breeze. These months also coincide with peak tourist season.
May to November is the rainy season, but unless there is a tropical depression sitting over Cayman, the rain is normally only heavy for a few hours and then stops for the rest of the day. It is not uncommon to have heavy rain in one part of town while it remains dry in another.
According to Cayman’s National Weather Service, 2016 was the driest year for the country on record, whereas 2017 was the wettest in 7 years. The National Oceanic and Atmospheric Administration (NOAA) reported that January 2020 was the hottest month ever recorded worldwide. However, for the Cayman Islands, August was the hottest month in 2020 (with an average temperature of 83.5˚F or 28.6˚C). The coldest month in 2020 was January (with an average temperature of 77.5˚F or 25.3˚C). The shifts in weather patterns may be due to global warming, which will become a major challenge for small island countries like Cayman. Jump over to our Being Green section to learn how to reduce your carbon footprint.
Average Weather by Month
|Month||Avg. Temperature||Avg. Daytime Hours||Avg. Rainfall (in.)||Avg. Humidity (%)|
|January||77.5˚F or 25.3˚C||11.08||7.1||81|
|February||77˚F or 25˚C||11.33||1.3||74|
|March||78.5˚F or 25.8˚C||12.04||1.5||62|
|April||80˚F or 26.6˚C||12.38||1.3||73|
|May||81.5˚F or 27.5˚C||13.06||15||76|
|June||83˚F or 28.3˚C||13.2||13.7||73|
|July||83.5˚F or 28.6˚C||13.13||15||72|
|August||83.5˚F or 28.6˚C||12.49||11.4||78|
|September||83.5˚F or 28.6˚C||12.17||18||75|
|October||82˚F or 27.7˚C||11.44||22.6||76|
|November||80.5˚F or 26.9˚C||11.15||11.4||74|
|December||78.5˚F or 25.8˚C||11.01||9.9||75|
Thankfully Cayman’s last major hurricane was in September 2004. Hurricane Ivan, a category five storm, caused major infrastructural damage plus took two precious lives. The Cayman Islands remains vigilant about hurricane preparedness. In this section you will also find everything about hurricane preparedness, from where the hurricane shelters are located in Grand Cayman to what companies sell storm shutters for your home.
We also discuss the fact that Cayman lies on the boundary of the Caribbean and North American tectonic plates, in an active transform boundary zone, which means that the tectonic plates are sliding past each other. This means that the area is known for the occasional earthquake and had a recent tsunami scare in January 2020. Being prepared and having a plan is essential. Make sure your family knows what to do in the event of a major earthquake occurring in the region.
Hurricanes are the most common natural disaster affecting the Cayman Islands. Learn how to prepare for a hurricane in the Cayman Islands.
Earthquakes and Tsunamis
Get information about the history of earthquakes and tsunamis in Cayman and what to do to prepare.
Waterspouts and Tornadoes
Waterspouts are often confused with tornadoes which are a very rare phenomenon for the Cayman Islands.
Emergency Alert System
Emergency Alert Systems have been developed in the Cayman Islands to provide the public with real-time alerts and notify them when a threat is declared.