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St. Thomas Weather in July: Rain, Temperatures

St. Thomas weather in July
Average high temperature and rainfall for St. Thomas in July. © 2022 Scott S. Bateman

St. Thomas weather in July is hot with a low to moderate risk of rain.

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, which is mainly in winter and spring, runs from December to May. St. Thomas has very little rain and a lower level of humidity during these months.

The wet season, mostly in the summer and fall, runs from June to November. The wet season is also called hurricane season, and for good reason.

Hurricanes are more likely to hit or pass near St. Thomas between the months of June and November.

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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 average maximum temperature in July is 89 degrees Fahrenheit or 32 Celsius, according to the U.S. National Weather Service. In August and September, the warmest months of the year, temperatures exceed 90 degrees Fahrenheit.

The average nighttime temperature in July is 78 degrees Fahrenheit or 26 Celsius. In the evening, it rarely becomes cool enough for even a light cardigan.

By comparison, the coolest months of the year are December and January. Daytime temperatures during these months average 85 degrees Fahrenheit or 29 Celsius. Nighttime temperatures drop to 72 degrees Fahrenheit or 22 Celsius.

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

St. Thomas Rainfall in July

During July, St. Thomas has on average 2.6 inches of rain. On average, it rains about four days out of the month.

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.

In the winter months, St. Thomas has very little rain. In January, February and March, it rains an average of less than two inches per month.

The heaviest rainfall occurs in September, October and November when it exceeds five inches per month.

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

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 is usually a pleasant month for cruise and hotel travelers to visit.

• St. Thomas 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.
June 29, 2022

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