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St. Lucia Weather in April: Rain, Temperatures

St. Lucia weather in April
Averge high temperature and rainfall in St. Lucia in April. © 2023 Scott S. Bateman

St. Lucia weather in April helps explain why eastern Caribbean cruises are so popular in the spring.

April is part of St. Lucia’s dry season, which usually goes from January through May.

St. Lucia is a popular cruise destination in part because it’s one of the southernmost islands in the Caribbean and as a result has warmer weather. It also happens to be one of the prettiest islands, at least in my opinion.

Great weather helps too.

St. Lucia Temperatures in April

April isn’t the warmest month of the year in St. Lucia, but it’s pretty close. The average daytime temperature in St. Lucia during April is nearly 86 degrees Fahrenheit or 30 Celsius, according to the St. Lucia Meteorological Service. The average nighttime is 76 degrees Fahrenheit or 24 Celsius.

The low temperature is warmer than most Caribbean islands in April. That matters because nighttime temperatures cool seawater.

Unlike northern destinations such as the Bahamas, seawater in April is usually comfortable enough for swimming throughout the day. Water temperatures usually range about midway between the daily high and low air temperatures. Water may feel chilly at times in the morning during the winter, especially in combination with a wind chill factor. But it’s usually not a problem in April.

Average temperatures are only about two degrees Fahrenheit higher in the summer and two degrees lower in the winter.

Rainfall in April

The average rainfall in St. Lucia during April is a little more than two inches, according to the St. Lucia Meteorological Service.

This average is about the same as February and March. January and May average about three inches.

Even better, it rains an average of 12 days during April, which is the lowest total of any month during the year.

By comparison, the total days with rain during a month is 20 or more from July through November. Total rainfall reaches nearly eight inches a month in September and October during the peak activity of the annual Caribbean hurricane season.

Should I Go in April?

St. Lucia weather in April has one of the best combinations of low risk for rain and warm daytime temperatures. It’s an ideal month to visit.

Both cruise and overnight visitors who have a choice on which month to visit can wait for mildly warmer weather later in the year. But the risk of rain will climb quickly.

• St. Lucia weather in January - February - March - April - May - June - July - August - September - October - November - December

Scott S. Bateman is a professional journalist who has traveled widely throughout the Caribbean and the Americas. He is the author of four books about cruising in the Caribbean, Alaska and Mexican Riviera.
March 21, 2024

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