Cruise and Beach Destinations
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Caribbean Weather in March

Nearly Ideal Month Offers Warming Temperatures, Low Risk of Rain

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Caribbean weather in March
Temperatures for March Caribbean weather. © 2018 Scott S. Bateman
March is one of the best times of the year to visit the Caribbean because of warming temperatures and low risk of rain.

March is the end of winter and beginning of spring for the northern hemisphere. But Caribbean weather in March shows few signs of cool temperatures in late winter and early spring.

It also doesn’t have the torrential rains that sometime hit the region in the fall months during the annual hurricane season.

Most destinations have an average high temperature during the month in the low to mid 80s Fahrenheit and upper 20s Celsius. These high temperatures typically are reached in early to mid afternoon.

The average low temperatures range in the low to mid 70s Fahrenheit or lower 20s Celsius, sometimes going even lower.

Water temperatures usually hover about midway the average highs and lows of the day. For the cooler destinations, it is best to wait until afternoon before swimming.

Cruise Weather in March

Caribbean cruise weather is nearly ideal because of low rainfall risk and warming temperatures for most of the region.

Western and southern Caribbean cruises have appeal because they also have the warmest temperatures.

Cozumel, one of the most popular cruise destinations in the Caribbean, reaches an average high temperature of 88 degrees Fahrenheit in March with one of the lowest levels of rain in the year, according to historical data from the Mexico National Water Commission.

Grand Cayman and Jamaica have similar conditions, although Jamaica will be slightly cooler.

For southern Caribbean cruises, the ABC islands of Aruba, Bonaire and Curacao have average temperatures in the upper 80s Fahrenheit and low risk of rain.

Temperatures in the second half of the month will be warmer for cruise visitors who want to spend time at the beach and in the ocean.

Western Caribbean in March

March is also one of the most popular times of the year to take a western Caribbean cruise because of an ideal combination of warming temperatures and lower risk of rain.

The average high temperature hovers around 85 degrees Fahrenheit or around 29 Celsius for many destinations. Rainfall of two inches or less is common during this dry season.

Two of the most popular western Caribbean islands are Cozumel and Grand Cayman.

The average high temperatures for both islands jump several degrees versus February. Grand Cayman still tends to have cooler nighttime temperatures that may make swimming uncomfortable in the morning.

Both islands have one of the lowest average rainfalls of the year at about one inch apiece.

Eastern Caribbean in March

ForecastsAvg LoAvg HiRain InchesRain Days
Bermuda6069 15
Cayman Islands6687110
Costa Rica60770
Dominican Rep.728327
Montego Bay708415
San Juan728428
St. Lucia7485214
St. Maarten7184414
St. Thomas73861
The northernmost destinations in the eastern region such as the Bahamas have the lowest temperatures.

They are good enough for visiting but possibly not good enough for swimming. (Note: The Bahamas are technically not part of the Caribbean but often are included in eastern cruises.)

While some destinations have only one inch of rainfall or less, the eastern Caribbean has the two rainiest locations -- Dominica and Martinique at five inches each.

Both islands receive high amounts of rain throughout the year and are known as eco tourism rather than beach destinations.

Another consideration is the rain days or number of days it rains each month. St. Lucia and St. Maarten have about 14 rain days, which is not unusual for most of the region during the year.

But it’s well above many other places such as Antigua, Dominican Republic and San Juan.

Southern Caribbean

The warmest place in March is Trinidad, which also is the southernmost island. It has an average daily high of 90 degrees Celsius.

Not far behind are Cozumel followed by the ABC islands of Aruba, Bonaire and Curacao.

Aruba, Bonaire and Curacao have the lowest rainfall in the entire Caribbean. They average well under one inch historically.

Whether to Go

March is an ideal time to vacation in the Caribbean because of warmth and low rainfall.

If it is possible to go on a particular week, consider the later part of the month because temperatures will continue to rise as the region heads into the spring.

In addition, consider the more southern locations because they will typically have the warmest temperatures of all.

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