Eastern Caribbean islands are more popular during late spring and summer because they reach their ideal temperatures.
March is usually one of the most popular times of the year to visit the Caribbean.
The average rainfall is low during April, but many locations have a brief rainy season during May.
Average high temperatures spike above 90 degrees Fahrenheit during the summer for several popular destinations including Aruba, Cancun, Cozumel and the Cayman Islands.
June 1 is the official beginning of the Caribbean hurricane season, although June historically has few hurricanes or tropical storms. July sees an increase in activity, and it goes up even more in August.
Clearly the worst time to go -- and least popular -- are the peak months of the Caribbean hurricane season in September and October.
September is the low point for Caribbean tourism because that month historically has the highest average rainfall and the most tropical storms and hurricanes.
Bad weather subsides a bit in October, but it still is the second worst month of the year for rain and the second most unpopular month for tourism.
The Caribbean in December begins the dry season for many locations, especially in the western Caribbean.
As a result, western Caribbean cruises zoom in popularity as vacationers flock to the major ports of call in Grand Cayman, Jamaica, Roatan and Cozumel.
December through March is a popular time to travel in the Caribbean for low risk of rain and as an escape from northern winters, but it also has the lowest average temperatures of the year.
Tourism increases during March in particular because of spring break for many schools.
Destinations in the northern parts of the Caribbean will have cooler waters for swimming, but places closer to the equator will be comfortable.
Temperatures are moderate for the islands, which hit highs in the 90s during the summer, and the Central American countries don't have the drenching rains that hit later in the year.
Caribbean weather is known for more than just warm and sunny days. It's also known for an annual hurricane season that runs from June 1 to Nov. 30.
The hurricane season averages about 12 to 15 tropical storms each year, some of which develop into hurricanes.
June and November have only about one storm each on average, while July through September average several storms with an average of two becoming hurricanes. October averages up to four storms but few hurricanes.
Most vacationers do not experience bad weather because of the size of the Caribbean, the path of the storms or the fact that they visit the Caribbean when storms don't occur.
Visits to the Caribbean reach a low point in September and October because those months have the highest total rainfall.