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The climate of U.S. Virgin Islands
The United States Virgin Islands are part of the Virgin Islands and were a Danish colony for decades until Denmark sold the islands to the United States of America. A long time ago the islands were a Dutch colony. The United States Virgin Islands have a tropical savannah climate type Aw according to the Köppen-Geiger climate classification. The average maximum temperatures show little variation. During the warmest time of the day temperatures are around 29-33 degrees Celsius on average. An ever present trade wind combined with the warm sea water (26-29 degrees Celsius on average) is responsible for moderated temperatures. Temperatures above 35 degrees Celsius are uncommon.

 

Climate information on cities and regions on the United States Virgin Islands
The climate information on this page is only brief. Specific information about weather and climate can be found on the climate pages per area or town. As for U.S. Virgin Islands the following climate information is available:

Charlotte Amalie
Christiansted
Cruz Bay
Saint Croix
Saint John
Saint Thomas
 

Rain
The US Virgin Islands have a dry season that lasts from the end of December till Early August. Within this season the month of May is a little wetter. The months of February and March are the driest with less than 40 millimeters of rain on average per month. In mid-August the wet period starts. However, precipitation figures are still low so ‘wet season’ is not really the correct term. Multiple showers per day are not uncommon, during the dry season this is mainly limited to one shower per day. About 960 millimeters of rain falls on average on a yearly basis. However, the wettest areas on the US Virgin Islands get about 300-400 millimeters more rain. The driest periods can record about 800 millimeters of rain. The US Virgin Islands are too warm for snow.

Temperatures
During the day temperatures are between 30 and 33 degrees Celsius. A peak in temperature of 34-35 degrees Celsius is not uncommon. Chances of very warm weather are smallest in December, January and February. Minimum temperatures are between 22 and 26 degrees Celsius with the occasional low. The lowest temperature on record for the US Virgin Islands is 11.1 degrees Celsius. The highest temperature for the US Virgin Islands is 37.2 degrees Celsius.

Wind
The US Virgin Islands are mostly influenced by a north east trade wind. During some of the years the trade wind comes from the east or the south east. The trade wind is ever present on the eastern part of the islands. The western parts are more on the lee-side. Sometimes a tropical storm forms from a tropical depression with destructive wind speeds. A hurricane in the vicinity may cause tidal waves that can cause major destruction along the coastline. There is an ever present chance that cruise ships have to change their schedule because of hurricanes. The US Virgin Islands are visited a lot by cruise ships. Because of bad weather they might be forced to sail to another port on the US Virgin Islands. It can also happen that they are forced to be anchored for a day longer. On the other hand it is also possible that they avoid the US Virgin Islands altogether because of hurricanes.

 

Climate figures
Several climate figures and temperatures can be found for the US Virgin Islands. The figures below are an average for the capital Charlotte Amelie and cannot be seen as an average for the entire archipelago. Climate information on specific places and regions is shown on the pages per place.

average
 maximum
temperature (°C)

average
minimum

temperature (°C)
average
hours of sunshine

per
day
average days with precipitation
per month
average
mm
precipitation
per month
average
sea
temperature (°C)
January 30 22 8 13 26
February 30 22 8 10 26
March 30 22 9 10 26
April 31 23 9 10 26
May 31 24 8 13 27
June 32 25 8 13 28
July 32 26 9 15 28
August 33 26 9 15 28
September 32 25 8 15 29
October 32 24 8 16 29
November 31 24 7 15 28
December 30 23 7 14 27
= 0-5 mm ● = 6-30 mm ● = 31-60 mm ● = 61-100 mm ● = 101-200 mm ● = over 200 mm
= 0-0.2 inches ● = 0.2-1.2 inches ● = 1.2-2.4 inches ● = 2.5-4 inches ● = 4.1-8 inches ● = over 8 inches

More climate information
Climate tables are useful but they don’t give an overall picture of the climate and possible weather conditions during a period of time. How high the chances are of hot or cold weather or hurricanes can often not be found in these tables. This is why we offer extra climate information per month. The information below is an average for the capital of Charlotte Amelie. Climate information on specific places and regions is shown on the pages per place.
 

chance of
(very) hot

weather

chance of
(very) cool
weather
chance of
long-term

precipitation
chance of
hurricanes
(cyclones)
chance of
sunny days

UV-index

January
February
March
April
May
June
July
August
September
October
November
December
click here for the explanation of the symbols

 

Disclaimer
The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. “More climate info” is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, it’s up to the reader to use it to it’s benefit.

 

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