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The climate of the US Virgin Islands is tropical hot-humid, but with pleasant temperatures at any time of the year thanks to the constant blowing of the north-east trade winds. In fact the temperatures vary little during the year and the average temperatures of January are around 22 ° C-30 ° C, those of August 25 ° C-33 ° C.
Rainfall is rather low by Caribbean standards. The rains fall between May and November, and the rainiest months are those between August and November, the annual average rainfall is 1,000 mm. The driest months are February and March. Hurricanes are also possible between June and November.
On the island of Saint Thomas there are an average of 163 rainy days a year. The months of October and November have an average of over 17 rainy days a month, the month of March has an average of only 8 rainy days a month. The eastern part of the island of Saint Croix receives very little rainfall and its appearance is semi-desert.
The sea water temperature varies between 26 ° C in the months between January and March and 28 ° C in the months between May and November.
WHEN TO GO TO THE US VIRGIN ISLANDS
The best months for a visit to the US Virgin Islands are the driest months between December and April.
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THE CLIMATE OF THE US VIRGIN ISLANDS: CLIMATIC TABLES
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| CHARLOTTE AMALIE, SAINT THOMAS (7 meters) | ||||
| Month | Average low (°C) | Average high (°C) | Precip. (mm) | Precip. days |
| January | 22,4 | 29,5 | 54,9 | 14,3 |
| February | 22,4 | 29,5 | 37,3 | 11,8 |
| March | 22,7 | 29,8 | 26,7 | 8,1 |
| April | 23,4 | 30,4 | 66,5 | 10,7 |
| May | 24,6 | 30,9 | 77,5 | 11,9 |
| June | 25,4 | 31,7 | 66,5 | 11,1 |
| July | 25,6 | 32,2 | 71,6 | 14,8 |
| August | 25,6 | 32,3 | 89,2 | 14,2 |
| September | 25,6 | 32,2 | 122,4 | 14,6 |
| October | 24,9 | 31,5 | 150,9 | 17,7 |
| November | 24,0 | 30,6 | 152,4 | 17,8 |
| December | 23,2 | 29,8 | 73,2 | 16,7 |
| YEAR | 24,2 | 30,9 | 989,3 | 163,6 |
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| U.S. VIRGIN ISLANDS | ||||
| Month | Sea Water Temperature °C | |||
| January | 26 | |||
| February | 26 | |||
| March | 26 | |||
| April | 27 | |||
| May | 28 | |||
| June | 28 | |||
| July | 28 | |||
| August | 28 | |||
| September | 28 | |||
| October | 28 | |||
| November | 28 | |||
| December | 27 | |||
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