The best time to visit St. Thomas in the U.S. Virgin Islands is winter through spring. From December through May, temperatures are mild, and the island receives relatively little rain.
June is also a good month to visit since average temperatures increase slightly and precipitation remains relatively low, perfect for long days on the island’s glorious beaches.
Visiting St. Thomas by Season
In June, July, and August, average temperatures in St. Thomas hover around 84℉ (29℃). The summer months with the least rainfall are June, with 2.5 inches (64 mm), and July with 2.9 inches (74 mm) of precipitation.
In August, rainfall increases to an average of 3.7 inches (94 mm). Take advantage of the warm water to do some of the best things to do in St. Thomas, such as snorkeling, scuba diving, and swimming.
September temperature averages 83℉ (28℃). October’s 6.1 inches (155 mm) of rainfall is the heaviest of the season; fall is the rainiest time of year and tropical storms may pass through.
During these wetter months, there’s still plenty to do, not least browsing the shops in Charlotte Amalie and at Havensight Mall.
Between December and February is the best time to go to St. Thomas. Temperatures are pleasant, averaging 79℉ (26℃).
December can see some rain, mainly in the form of short, sharp late afternoon showers as humidity builds up, but this decreases through January and February.
Winter is the best time to spot the humpback whales that travel to the island’s warm waters to give birth.
Spring is also one of the best times to go to St. Thomas. Temperatures in March, April, and May average about 81℉ (27℃). While March rainfall is low at just 1.4 inches (36 mm), precipitation begins to increase during April and May.
In spring, get some sun and swim on St. Thomas’s delightful beaches. In May, the brilliant red flamboyant trees start to bloom. May also ushers in the wahoo fishing season.
When Is Rainy Season?
The island experiences the most rainfall in August, September, October, and November. Precipitation is heaviest in September and October, which is typical throughout the Caribbean.
When Is High Season?
High season stretches from December through March. Temperatures are mild and rainfall is low. This is the busiest time in the USVI, especially around the December holiday season. Towns are buzzing, and nightlife is lively.
When Is Shoulder Season?
April through July is shoulder season, with pleasant temperatures, not too much rain, and fewer visitors.
Take advantage of the island being in full bloom to enjoy the flowers at Plantation Crown and Hawk Botanical Garden.
When Is Low Season?
Low season is August through November, when temperatures and rainfall increase. This doesn’t mean you should stay away; just be prepared for some rain. There are bonuses, too; many of the island’s sea turtles hatch during August.