Weather-wise, it's hard to beat March in the Caribbean, where the days average about 83 F and it only drops to about 73 F at night, and rainstorms tend to be few and far between except perhaps in Bermuda, which gets an average of 4.3 inches of rain in March.
Northern island temperatures increase slowly from the cooler winter months, while southern islands becoming blistering hot spots in no time at all.
Ocean temperatures increase as well, with water warming up to anywhere between 76-78 degrees Fahrenheit.
Visiting the Caribbean in March: Pros
By this point in the year, most people up north are sick of winter, so it's no surprise that March is so popular for Caribbean travel. The weather is dependably warm and dry, and the time is right to head to the islands if you have time off from work or school around Easter or Spring Break. There will be much to do and many people to do it with at this time of year, the beginning of a noted tourist season throughout the islands.
Visiting the Caribbean in March: Cons
March is the height of the high season in the Caribbean, and you'll generally pay the highest prices of the year to fly and stay in the Caribbean during this month. Spring Breakers start arriving in Caribbean destinations during March -- notably in Cancun and Cozumel, Puerto Rico, Jamaica, the Bahamas, and the Dominican Republic, but other islands, too.
Choose your destination carefully if you want to avoid a frat-party atmosphere.
If you're looking to party, check out our guide to Spring Break in the Caribbean here; if you're not, check out our guide anyway to find out where not to go.
What to Wear and What to Pack
This is dry season in the Caribbean, so moisturizer is more important than ever (lip balm, too).
Light cotton clothing for daytime, and a sweater or sweatshirt for the evening.
For going out, you’ll also want to pack dressier clothes for visiting nice restaurants or clubs -- and bring more formal footwear than just flip-flops and sneakers.
For the ladies, bring along a small pocketbook, to keep track of money, cell phone, etc. without having to drag around your normal-sized purse. For gents, always carry your wallet in your front pocket of your slacks if possible, especially in the more busy areas to avoid any possible pickpockets. In heavily populated and metropolitan areas, it is always better to take extra safety precautions.
For more tips on staying safe on your Caribbean trip, check out our guide to Caribbean safety and security here.
For more details on making sure you've got the right items in your suitcase, see my article on How to Pack for a Caribbean Trip.
March Events and Festivals
St. Patrick's Day is celebrated in only a couple of islands -- notably Montserrat and St. Croix -- but makes for a unique and memorable Caribbean experience. The Caribbean is a very Catholic region, so there's also any number of Easter celebrations in the islands when the holiday falls in March.
For more information, see my guide to Top March Events in the Caribbean and check the local event calendars at your final destination – more often than not, there are fun festivities and parties to check out that only the locals know about!