Water temperature in Saint Croix

This data the coastal Saint Croix sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Saint Croix

Water temperature in Saint Croix today is 85.5°F. Based on our historical data over a period of ten years, the warmest water in this day in the Caribbean Sea near Saint Croix was recorded in 2024 and was 87.4°F, and the coldest was recorded in 2017 at 83.8°F. Sea water temperature in Saint Croix is expected to drop to 84.9°F in the next 10 days. September average water temperature in Saint Croix is 84.7°F, the minimum temperature is 82.9°F, and the maximum is 87.6°F.

The swimming season in Saint Croix lasts from January to December, twelve months per year! During those months, Saint Croix water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Saint Croix in winter reaches 80.6°F, in spring 80.8°F, in summer the average temperature rises to 83.5°F, and in autumn it is 84.4°F.

Saint Croix water temperature now

The sea salinity in Saint Croix is 36.23‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Saint Croix for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Saint Croix. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Saint Croix. Data in table shown for September 26, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Saint Croix

Saint Croix weather forecast

Current temperature and weather

Data in a table show Saint Croix temperature today (September 26, 2025). For more information and forecast for a few days, go to the weather forecast Saint Croix.

0-3 h	3-6 h	6-9 h	9-12 h
82.9°F	82.6°F	82.8°F	83.3°F

12-15 h	15-18 h	18-21 h	21-24 h
87.4°F	86.5°F	84°F	83.5°F

Saint Croix water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Saint Croix. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Saint Croix on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Saint Croix

The nearest beaches and cities from Saint Croix with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Christiansted	85.5°F	86°F		2' 10"
Frederiksted	85.5°F	86°F		2' 6"
Salt Pond Beach	85.3°F	84.2°F		2' 9"
Norman Island	85.1°F	84.2°F		2' 11"
Rendezvous Bay	85.3°F	84.2°F		2' 7"
Water Island	85.5°F	84.2°F		2' 6"
Coral Bay	85.3°F	86°F		2' 4"
Maho Bay	85.3°F	86°F		2' 4"
Cinnamon Bay	85.3°F	86°F		2' 4"
Saint John	85.3°F	84.2°F		2' 3"

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St. Croix, St Croix, Twin City

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Our report for Saint Croix is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.