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U.S. Virgin Islands

St. Thomas Weather in July

St. Thomas weather in July has the potential to become unpleasant.

St. Thomas, located in the U.S. Virgin Islands, follows a weather pattern typical of the Eastern Caribbean. The island’s climate year is divided into two distinct seasons: the wet season and the dry season.

The dry season, also called winter, runs from December to May. St. Thomas receives very little rain during these months, and the island has a lower level of humidity.

The wet season, or summer, runs from June to November. The wet season is also called hurricane season, and for good reason.

Hurricanes are most likely to hit St. Thomas between the months of June and November. When traveling to St. Thomas during these months, it is advised to check the weather often and be aware of any changes.

Traveling to the island when a hurricane is on the radar is not advised.

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St. Thomas Temperatures in July

This video explains Caribbean weather in July and which islands are the best and worst to visit for weather.

Full-Screen Version | YouTube Caribbean Channel
July is one of the warmest months of the year in St. Thomas, coming in behind only August and September.

The coolest months of the year are December and January. High temperatures during these months are 85 degrees Fahrenheit, and low temperatures drop to 72 degrees.

The average maximum temperature in July is 89.3 degrees Fahrenheit. In August and September, the warmest months of the year, temperatures exceed 90 degrees.

The average minimum temperature in July is 77.6 degrees. In the evening, it rarely becomes cool enough for even a light cardigan.

The sea temperature hovers around 83 degrees Fahrenheit during the summer months.

St. Thomas Rainfall in July

Annually, St. Thomas receives about 40 inches of rain. Most of this rain falls during the island’s hurricane season, between the months of June and November.

During the winter months, St. Thomas receives very little rain. In January, February, and March, it rains less than two inches per month.

The heaviest rainfall occurs in September, October, and November, exceeding five inches per month.

During the month of July, St. Thomas receives, on average, 2.61 inches of rainfall. On average, it rains about four days out of the month.

Rain usually occurs in the form of a short, passing shower.

Because of current storm technology, meteorologists know when a tropical storm or hurricane is approaching. It is not advised to travel to St. Thomas when a hurricane is scheduled to hit.

Cruise lines will often reschedule or redirect their route to avoid a hurricane.

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

Should I Visit St. Thomas in July?

St. Thomas weather in July is fairly sunny and warm. So long as no hurricanes are on the horizon, it should be a pleasant month to visit.

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.
June 19, 2021