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5 Warmest Caribbean Islands in December

Aruba monthly temperatures
Aruba is one of the warmest islands in the Caribbean in December. © 2020 Scott S. Bateman
The warmest Caribbean islands in December include southern destinations such as Aruba and Curaçao. But a few other choices are worth a look.

Historically, Aruba and Curaçao have average high temperatures in the upper 80s Fahrenheit in December. Both islands are among the most southern islands in the Caribbean. They lie about 78 miles apart near the coast of Venezuela.

The smaller nearby island of Bonaire also has average temperatures in the high 80s Fahrenheit in December. But it is not nearly as popular with cruise and hotel visits as Curaçao and especially Aruba.

Aruba has an average daytime temperature in December of 87 degrees Fahrenheit over a 30-year period, according to the Meteorological Department of Aruba. It has an average nighttime temperature of 79 Fahrenheit. Water temperatures are usually balmy and comfortable. However, the average rainfall for Aruba in December is higher than normal at about three inches.

Curaçao has average daytime temperatures of 86 degrees Fahrenheit, according to the Meteorological Department of Curaçao. But it averages slightly more rain than Aruba at nearly four inches.

We have been to both Aruba and Curaçao multiple times. Both islands are good choices for vacation. Aruba is the more commercial of the two.

3 More Warm Islands


Grand Cayman


Several other destinations rank among the warmest Caribbean islands in December.

Surprisingly, Grand Cayman averages the same daytime temperatures in December as Aruba even though Grand Cayman is quite a bit farther north.

December is a transition month from the hurricane season to the dry season. Average rainfall is about three inches compared to more than seven in November and less than two from January through April, according to the National Meteorological Service of the Cayman Islands.

But Grand Cayman’s weather has one bigger negative: nighttime temperatures. The average nighttime temperature is only 67 degrees Fahrenheit. It will bring water temperatures way down, especially in the mornings. Swimmers may find that water temperatures plus trade winds will sometimes make seawater too chilly for swimming.

St. Thomas


The hugely popular cruise destination of St. Thomas in the U.S. Virgin islands is another warm Caribbean island during December.

It has an average daytime temperature of 86 degrees Fahrenheit and an average low of 73, according to the U.S. National Weather Service.

The island is usually a better choice for swimming and other water activities than Grand Cayman.

Guadeloupe


The quiet French island of Guadeloupe takes fifth place as the warmest Caribbean island in December with an average daytime temperature of 85 degrees Fahrenheit, according to historical data from France Meteo.

Like other Caribbean islands, December is a transition month for Guadeloupe between the rainy and dry seasons. It has an average rainfall of about five inches during the month, which makes it the rainiest of the five warmest islands.

If the risk of rain sounds unappealing, vacation planners may consider other islands that are slightly less warm and have a lower risk of rain. They include Barbados, St. Lucia and St. Maarten.

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