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U.S. Virgin Islands

St. Thomas Average Monthly Weather

Magens Bay
Megans Bay beach is almost always warm. © USVI Dept. of Tourism
The average weather in St. Thomas, U.S. Virgin Islands, is warm all year and has typical temperatures and rainfall for the eastern Caribbean.

The islands also are attractive because of duty-free shopping for U.S. citizens and because passports aren't required for Americans to vacation there.

The shopping helps make U.S.V.I. a popular stopover for cruise ships. About three times as many people visit there by cruise as people who plan to stay there for a longer-term vacation.

Close to U.S.V.I. are the British Virgin Islands, which share similar weather but are known for long-term vacations more than for cruise visits.

Click Caribbean climate to see climate charts for many major destinations.

St. Thomas Temperatures


Virgin Islands Climate Chart
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average Max. Temp (F) 85.2 85.2 85.8 86.7 87.6 89.3 90.1 90.3 89.8 89.0 87.3 85.8
Average Min. Temp (F) 72.3 72.1 72.6 74.2 76.2 77.6 77.9 77.9 77.5 76.6 75.1 73.2
Average Total Precip (in.) 1.93 1.47 1.49 2.82 3.23 2.47 2.61 3.64 5.36 5.56 5.53 2.92
The average monthly high temperature for the Virgin Islands is nearly 88 degrees Fahrenheit, according to the Southeast Regional Climate Center.

The average highs stay in a range between the mid 80s and 90 all year long. It is one of the warmest islands in the Caribbean.

It even stays warm during the winter and early spring months of December through March. People who like hot weather will find plenty of it in the summer when the average highs exceed 90 degrees in July and August.

The average monthly low temperature is 75 degrees. The low temperatures take place mostly at night.

Although the island’s air temperature stays warm throughout the year, the seawater temperature will become cooler and sometimes uncomfortable during winter months.


Average Rainfall


But it's the rain that makes planning the timing of a cruise or visit a good idea. The islands receive a total of nearly 40 inches of rain during the year.

It rains less than 2 inches a month in January, February and March. It rains more than five inches each in September, October and November. Those three months are the most active months of the annual Caribbean hurricane season.

Because of winter warmth and low rainfall, December through April are the favorite months to visit the Virgin Islands, according to the Caribbean Tourism Organization. Heavy rainfall makes September the least popular month, followed by October and August.

A recent trip to St. Thomas in December found the island with warm temperatures, nearly clear skies and no rain.

Anyone planning a trip to the Virgin Islands will find the risk of bad weather at a low point from December through June, while the highest risk is during the months of late summer and early fall.
Scott S. Bateman is a professional journalist who has traveled widely throughout the Caribbean and the Americas.

 > Category: Climate   

December 16, 2016
January, February, March, April, July, August, September, October, November, December"/>

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