
The most detailed information about the water temperature in Saint Thomas in The Caribbean (United States Virgin Islands). Forecast of changes in water temperature for the next 10 days. Statistics by months for recent years. Information about the neighboring resorts. Weather forecast in Saint Thomas for a week.
Water temperature in Saint Thomas right now
data updated 30 minutes ago80°F

yesterday: 78°F
a week ago: 79°F
Trend: slow rise
Today water temperature in Saint Thomas is 80.8°F. It is very warm and comfortable water for long swimming in any body of water. It is believed that these are the ideal conditions under which one can be without the slightest discomfort. But it is worth remembering that at such a water temperature, various disease-causing organisms multiply very quickly. In any case, the general weather is also important. So, the air temperature at the same time will reach 78°F.
Analysis and forecast
The water temperature today is slightly higher than the average on this day in recent years. Its value has rise over the last week, but has drop compared to 20 days ago. Exactly a year ago, on this day, the water temperature in this location was 75°F. Water temperature range in Saint Thomas in February is from 75 to 82 degrees.
According to our forecast, the water temperature in Saint Thomas will slowly rise for at least the next 10 days and reach a value of 82°F.
Table of water temperature values in Saint Thomas
Day | Fact* | Average** | Forecast*** |
Feb 17 | 25.5°C | 25.8°C | |
Feb 18 | 25.5°C | 25.3°C | |
Feb 19 | 26.7°C | 26.8°C | |
Feb 20 | 25.9°C | 26.3°C | |
Feb 21 | 26.8°C | 26.0°C | |
Feb 22 | 25.4°C | 26.3°C | |
Feb 23 | 25.6°C | 26.3°C | |
Feb 24 | 27.1°C | 25.0°C | |
Feb 25 | 24.8°C | 26.9°C | |
Feb 26 | 26.5°C | 28.7°C | |
Feb 27 | 25.3°C | 27.4°C | |
Feb 28 | 24.8°C | 26.9°C | |
Mar 1 | 26.5°C | 28.7°C | |
Mar 2 | 26.5°C | 28.7°C | |
Mar 3 | 26.3°C | 28.5°C |
** Average - Average water temperature on this day in past years
*** Forecast - Our forecast for the water temperature
Actual nearshore temperatures may vary by several degrees from the indicated values. This is noticeable after heavy rain or after prolonged periods of strong winds. Some downstream winds cause cold, deep waters to replace surface waters that have been warmed by the sun.
To develop a forecast, we use our own mathematical model, which takes into account the current change in water temperature, historical data and the main weather trends, wind strength and direction, air temperature in each specific region. We also take into account data for other resorts in United States Virgin Islands.

Annual graph of average water temperature change in Saint Thomas

Water temperature in Saint Thomas by month
Saint Thomas located in the northern hemisphere, south of the northern tropic, at latitude 18 degrees. The swimming season in this location lasts all year round. Average annual water temperature on the coast in Saint Thomas is 82°F, by the seasons: in winter 79°F, in spring 80°F, in summer 83°F, in autumn 84°F. Minimum water temperature (76°F) in Saint Thomas it happens in February, maximum (86°F) in September.
You can find out detailed data on how the water temperature in Saint Thomas changes in each specific month:
Saint Thomas: general information and map
Neighboring cities and resorts
City | Water* | Distance** |
Charlotte Amalie | 79°C ![]() ![]() | 2km |
Magens Bay | 78°C ![]() ![]() | 4km |
Cruz Bay | 79°C ![]() ![]() | 17km |
Great Tobago | 80°C ![]() ![]() | 18km |
Saint John | 79°C ![]() ![]() | 23km |
Jost Van Dyke | 78°C ![]() ![]() | 25km |
Coral Bay | 78°C ![]() ![]() | 25km |
Tortola | 79°C ![]() ![]() | 34km |
Culebra | 79°C ![]() ![]() | 37km |
Road Town | 79°C ![]() ![]() | 37km |
Wesley Will | 79°C ![]() ![]() | 39km |
Peter Island | 79°C ![]() ![]() | 40km |
** Straight line distance in kilometers

The warmest water today in United States Virgin Islands recorded in Saint Thomas, its value is 80°F. Lowest - in Magens Bay, there water temperature now 78°F. Average water temperature in the country today - 78°F.
Water temperature data in Saint Thomas and neighboring towns and resorts collected from various sources, using buoys, using satellite maps of sea, river and lake surfaces of the NOAA agency.
We use data from various local authorities in each specific location of the world to more accurately reflect temperature values.
The nearest airport is located in a 1 kilometers. This is Charlotte Amalie Harbor (SPB) airport. We have no information as to whether it is valid and what flights it receives or sends.
Saint Thomas: weather forecast
The weather forecast is shown in local time in Saint Thomas


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