Cruise and Beach Destinations
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Caribbean Weather in July: 5 Best Islands to Visit

This video explains Caribbean weather in July and which islands are the best and worst to visit for weather.

Full-Screen Version | YouTube Caribbean Channel
Caribbean weather in July is similar to June with average high temperatures in the upper 80s Fahrenheit or about 30 Celsius. But July also has a higher risk of rain from the annual hurricane season.

The hurricane season begins June 1 and goes through Nov. 30 each year. Historically, June weather is fairly mild. It averages one tropical storm and a rare hurricane. July gets more active with an average of three tropical storms.

Over history, two of these tropical storms in July grow into hurricanes, according to the U.S. National Hurricane Center. The higher storm activity in July means that many destinations have more rain during the month than they do in June.

The odds of being in the direct path of a hurricane are low. The greater risk comes from rain, clouds and high winds resulting from a tropical storm or hurricane that pass in the vicinity of a destination. Still, this higher risk of rain doesn’t stop many people from taking Caribbean cruises and vacationing in resorts, although total tourism drops compared to the dry season from January through April.

Best Caribbean Islands to Visit in July

The following five islands are the best Caribbean islands to visit in July because of their historically low risk of rain.

  1. Aruba with a little more than one inch of rain.
  2. Cancun with a little more than two inches.
  3. Curaçao with less than two inches.
  4. St. Maarten with less than three inches.
  5. St. Thomas with less than three inches.

10-Day Weather Forecasts | See Caribbean monthly weather in: January - February - March - April - May - June - July - August - September - October - November - December

Temperature and Rainfall Chart
LocationAvg Min TempAvg Max TempAvg Rainfall InchesAvg Rain Days
Cayman Is72.091.95.815
Costa Rica61.376.88.2
Dominican R76.386.93.19
San Juan76.888.54.414
St. Lucia77.586.95.921
St. Maarten79.089.92.8
St. Thomas78892.5

Eastern Caribbean in July

Eastern Caribbean weather in July has a low risk of rain for several destinations while several others get quite a bit of it.

In the eastern Caribbean, good choices for a vacation with a lower risk of rain are Antigua, St. Maarten and Punta Cana, Dominican Republic.

Others are not so lucky. The Bahamas, which are not actually in the Caribbean Sea, average more than six inches of rain in July, according to 30 years of data from the Bahamas Department of Meteorology. It is best to avoid cruises that visit the Bahamas during the month.

St. Lucia, another popular cruise destination, also averages nearly six inches. Like the Bahamas, St. Lucia is not one of the better choices to visit in July.

Martinique and St. Lucia historically have more than 20 days of rain during the month, which is high compared to many destinations.

Likewise, Caribbean islands known as ecotourism destinations with rainforests and waterfalls such as Dominica, Martinique and St Lucia also have a higher than average amount of rain.

It’s important to note that these rainfall averages are based on long-term histories. The actual amount of rain varies from year to year and may come close to the average or vary quite a bit. But they are helpful guides in knowing what to expect about the best and worst months to go.

Western Caribbean in July

Weather in the western Caribbean during July has temperatures reaching into the low 90s Fahrenheit for some of the hotter destinations. Some of them have higher rain than average and others have lower chances of rain.

Like the Bahamas and St. Lucia in the east, rain increases to six inches for Grand Cayman. Cozumel comes in second place with more than four inches.

Cozumel beach
Cozumel beaches get very hot in July. Credit: Wikimedia Creative Commons license

Other destinations with historically lower rainfall are Cancun at two inches and Montego Bay, Jamaica, at about two inches.

Among the major Central American destinations, Belize and Costa Rica both historically have higher than average rainfall.

July is also the hottest time of the year for the western Caribbean. Cancun may be fairly dry, but it’s also quite hot with an average high of 92 degrees Fahrenheit or about 33 degrees Celsius. The Cayman Islands also average 92 degrees Fahrenheit.

Cozumel is nearly as hot at 91 Fahrenheit, while Montego Bay is more comfortable at 88 degrees Fahrenheit.

Cooler temperatures take place in Costa Rica because of mountains and rainforests. The coasts have average temperatures in the upper 80s while the interior experiences them in the mid to upper 70s.

Southern Caribbean in July

Aruba and Curacao continue their dry season that started the previous December with between one and two inches of rain apiece.

Temperatures run just below the hottest period of the year with an average of 89 degrees Fahrenheit or about 32 Celsius.

Trinidad has another wet month with an average of more than seven inches of rain, while its high temperatures nearly equal Aruba and Curacao at 88 degrees Fahrenheit or 31 Celsius.