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Climate - United States Virgin Islands


Average weather, temperature, rainfall, sunshine

Flag - United States Virgin Islands

Map - United States Virgin Islands

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The climate of the U.S. Virgin Islands is tropical, hot all year round, with a relatively cooler period from December to March, with average highs around 29 °C (84 °F), and a hotter and sultry period from May to October, with highs around 31/32 °C (88/90 °F), during which, however, the heat is tempered by the breeze.
The U.S. Virgin Islands are an archipelago located east of Puerto Rico, in the group of the Lesser Antilles.

Climate chart - Charlotte Amalie

Here are the average temperatures of Charlotte Amalie, the capital.
Charlotte Amalie - Average temperatures (1991-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January232926748478.8
February232926.1748479
March232926.2748579.2
April243027768680.6
May253128788782.4
June263229798984.1
July263229.2799084.6
August263229.2809084.6
September263229.1808984.4
October263128.5788883.3
November253027.6778781.6
December243026.7758580.1
Year24.930.527.6576.88782

As regards to the rainfall, there is a relatively dry season from January to April and a rainy season from May to December, during which there's a relative decrease in precipitation in June and July. The least rainy months are February and March. Rainfall hovers around 1,000/1,200 millimeters (40/47 inches) per year and is generally slightly more abundant on the northern slopes of each island.
On the northernmost islands (Saint John and Saint Thomas, where Charlotte Amalie is located), the relatively dry season runs from December to April, even though, during some years, there have been heavy rains also in December, from 200 to 400 mm (8 to 16 in), while on the island of Saint Croix, located more to the south, it runs from January to April.
Starting from May, precipitation increases, though there is often a relative decrease in June and July, followed by a recovery from August to November. Generally, the wettest period runs from September to November.
Here is the average precipitation in Charlotte Amalie.
Charlotte Amalie - Average precipitation
MonthMillimetersInchesDays
January50210
February351.48
March351.47
April702.88
May803.110
June702.88
July652.69
August953.712
September1405.513
October1556.114
November1405.513
December702.812
Year100539.6124

Apart from hurricanes, which can bring strong winds and torrential rains (see below), the weather is normally nice or variable, only interrupted by short showers and thunderstorms, which are more likely and more intense during the rainy season: so, the sun shines for many hours throughout the year, as you can see in the following table.
Charlotte Amalie - Sunshine hours
MonthAverageTotal
January8250
February8225
March9280
April9270
May8250
June8240
July9280
August9280
September8240
October8250
November7210
December7215
Year8.22985

Charlotte Amalie

The sea in the U.S. Virgin Islands is warm enough to swim in all year round: the water temperature is around 26 °C (79 °F) in February and March and around 29 °C (84 °F) in September and October, as can be seen in the following table.
Charlotte Amalie - Sea temperature
MonthCelsius (°C)Fahrenheit (°F)
January2680
February2679
March2679
April2780
May2781
June2883
July2883
August2984
September2984
October2984
November2883
December2781
Year27.681.7

Hurricanes



From June to November, here as in the whole area of the West Indies, there is the danger of tropical storms and hurricanes, with greater probability from August to October. In September 2017, the island of Saint Croix was hit in full force by Hurricane Maria.

When to go and what to pack in United States Virgin Islands

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