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Caribbean Temperatures - Hottest and Coldest Months

See average Caribbean weather in: January - February - March - April - May - June - July - August - September - October - November - December

Seven Mile Beach
Seven Mile Beach on Grand Cayman is one of the hottest in the Caribbean during the summer. Credit: Cayman Islands Dept. of Tourism
Average daytime temperatures in the Caribbean range from the low to mid 80s Fahrenheit in the winter to the high 80s and low 90s in the summer.

Aruba, Cancun, Cozumel, Curacao, Grand Cayman and St. Thomas are the hottest destinations in the summer with daytime temperatures reaching into the low 90s Fahrenheit or low 30s Celsius.

The Bahamas, Roatán, Puerto Plata, Punta Cana and Turks and Caicos have the coldest daytime temperatures during the winter. They average around 80 degrees Fahrenheit or 27 Celsius.

The eastern region usually includes the Bahamas for the sake of eastern Caribbean cruises, even though the Bahamas aren't actually located in the Caribbean Sea. But they share a great deal with the rest of the Caribbean. The same is true of Bermuda, which lies north of the Bahamas. But it is much colder and isn’t a common beach destination in the winter.

Monthly High Temperatures by Destination
JanFebMarAprMayJunJulAugSepOctNovDec
Antigua828283848586878787868583
Aruba868787888990899091909087
Bahamas777779828587898988858279
Barbados838384858686868686868584
Belize828285878988888887868482
Bermuda696869717581858684797571
Cancun828385889091929290878582
Cayman Is878687899091919191919087
Costa Rica747577787978767778777574
Cozumel838487899090909189878583
Curacao858686888889899090898886
Dominica828283848586868686848583
Roatan788185868683828383817877
Guadeloupe848484868788888888888685
Jamaica828283858687888888868583
Martinique828383858686868687868584
Puerto Plata818182838586868787868482
Punta Cana818182838586868787868482
San Juan838384858788888888888583
St. Lucia848384858787868787878684
St. Maarten828383858686868687868584
St. Thomas858586878889909090898786
Turks-Caicos818182838586868787868482
Trinidad878890919188888990908888
Current temperatures

Temperatures in the southern Caribbean are slightly warmer during the winter, which is why Aruba, Barbados, Curacao and other nearby islands are popular during that time of year.

Water Temperatures


Water temperatures average about midway between the high and low temperatures of the day.

They typically will be about three to five degrees cooler than the air temperature and reach their high point around early to mid afternoon.

Southern destinations will have the warmest water temperatures year round because they are closest to the equator.

Trade Winds


Trade winds create a wind chill factor in the Caribbean like everywhere else. The winds are strongest coming from the east.

As a result, it is wise to consider staying in a hotel, villa or resort on the eastern side of a destination during the summer and the western side during the winter if the winter location is cooler than most.



January, February, March


Air temperatures stay flat for the first three months of the year for most islands. One exception is Cozumel, which climbs from 83 Fahrenheit in January to 78 in March.

Aruba, Curacao, Cozumel and Grand Cayman are among the hottest. The Bahamas, San Juan and Dominican Republic are often too cold for swimming.

April, May, June


This is the ideal time of year to visit the Caribbean for anyone who likes warm weather, comfortable swimming and low risk of rain.

Nearly every major destination has daytime temperatures in the upper 80s Fahrenheit. By June, the hottest islands average 90 degrees Fahrenheit or 32 Celsius. They again include Aruba, Cancun, Cozumel, Curacao and Grand Cayman.

July, August, September


Temperatures increase again for all islands, but the summer is the start of the Caribbean hurricane season.

Vacation planners who love beaches should plan to go as early as possible in the summer because hurricane and tropical storm activity start increasing and reach a peak in September and October. Tourism dives during those two months.

October, November, December


Bahamas golf
Bahamas temperatures in the winter are attractive to golfers but not swimmers. Credit: Bahamas Ministry of Tourism
October holds onto hot temperatures that make Caribbean beaches inviting. But it is the second most active month of hurricane season after September.

The official hurricane season ends on Nov. 30, while temperatures beginning dropping toward the lows of the year in December.

December is one of the most popular months to visit the Caribbean for northerns seeking to escape winter. It also is one of the coldest months of the year in the Caribbean.

Still, daytime highs remain in the upper 80s Fahrenheit for the hotter destinations such as Aruba, Curacao, Grand Cayman and St. Thomas. Meanwhile, the hot summer destinations of Cancun and Cozumel have average daytime temperatures that drop back down into the lower 80s Fahrenheit.



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