Virgin Islands Weather – Best and Worst Months to Go


The weather in St. Thomas Virgin Islands makes this paradise in the Caribbean an attractive choice for a vacation throughout most of the year.

In addition to the great weather, St. Thomas has duty-free shopping and the fact that U.S. citizens don’t need a passport to visit there.

The limit on duty-free shopping is about twice as high as other destinations. As a result, shopping makes U.S.V.I. a popular stopover for cruise ships, with total cruise visitors about three times as high as people who visit the islands for a long-term stay.

Visitors will realize its popularity while shopping among the crowds in downtown Charlotte Amalie.

Average Temperatures

The average monthly high temperature is nearly 88 degrees Fahrenheit and the average low temperature is 75 degrees, according to the Southeast Regional Climate Center.

The average temperatures vary little from month to month, like most Caribbean destinations.

The average rainfall is 3.2 inches per month but varies widely throughout the year.

The islands have more rain per month than most destinations, but they don’t have the extremes each month that others receive.

St. Thomas weather in December, January, February and March has average high temperature of about 85 degrees Fahrenheit.

This compares to an average high of more than 90 degrees in July and August.

Average low temperatures, which take place mainly at night, range from the low 70s Fahrenheit in the winter to the high 70s in the summer.

Seawater temperatures will usually hover midway between the high and low air temperatures.

Swimming should be comfortable year-round except for the mornings in winter.

Average Rainfall

Average rainfall is less than 2 inches a month from January through March.

St. Thomas weather in April and May sees a pickup in rain. It drops a bit during the summer and then spikes during the most active months of the Caribbean hurricane season.

More than five inches of rain falls in September, October and November, making them the rainiest months of the year.

Best Times to Visit

The most popular months for visits are December through April, according to the Caribbean Tourism Organization.

The combination of warm temperatures, low rainfall and close location to U.S. cruise ports make those months ideal for a vacation there.

The least popular month because of heavy rainfall is September, followed by October and August.

But November should be avoided as well because of the high chance of rain.