Water temperature in Treasure Cay
This data the coastal Treasure Cay 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 Treasure Cay
Water temperature in Treasure Cay today is 84.4°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Treasure Cay was recorded in 2018 and was 85.8°F, and the coldest was recorded in 2019 at 81.7°F. Sea water temperature in Treasure Cay is expected to drop to 83.3°F in the next 10 days. September average water temperature in Treasure Cay is 84.9°F, the minimum temperature is 81°F, and the maximum is 88°F.
The swimming season in Treasure Cay lasts from January to December, twelve months per year! During those months, Treasure Cay water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Treasure Cay in winter reaches 74.7°F, in spring 77.2°F, in summer the average temperature rises to 84.6°F, and in autumn it is 81.7°F.
Treasure Cay water temperature now
| September 26, 2025 |
|---|
| today temp |
| 84.4°F |
| September 25, 2025 |
|---|
| yesterday temp |
| 85.1°F |
The sea salinity in Treasure Cay is 36.55‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Treasure Cay 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 Treasure Cay. 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 Treasure Cay. 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)
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
| 1' 6" | 1' 6" | 1' 7" | 1' 8" |
| 0.46 m | 0.46 m | 0.47 m | 0.51 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 1' 8" | 1' 8" | 1' 8" | 1' 9" |
| 0.51 m | 0.51 m | 0.52 m | 0.54 m |
Surf report in Treasure Cay
Treasure Cay weather forecast
Current temperature and weather
Data in a table show Treasure Cay temperature today (September 26, 2025). For more information and forecast for a few days, go to the weather forecast Treasure Cay.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 |  | |  |
| 82.4°F | 79.9°F | 81.1°F | 82.9°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| | | |
| 87.4°F | 85.6°F | 84.4°F | 83.3°F |
You may also be interested in other sections of our site for Treasure Cay: Sunrise and Sunset, Tides
Treasure Cay water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Treasure Cay. 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 Treasure Cay 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
| Month | Avr | Min | Max | |
|---|---|---|---|---|
| January | 74.3°F | 67.5°F | 77.9°F | warm |
| Sea water temperature in Treasure Cay in January | ||||
| February | 74.1°F | 69.4°F | 78.3°F | warm |
| Sea water temperature in Treasure Cay in February | ||||
| March | 74.8°F | 70.5°F | 79.3°F | warm |
| Sea water temperature in Treasure Cay in March | ||||
| April | 76.8°F | 72.7°F | 81.9°F | warm |
| Sea water temperature in Treasure Cay in April | ||||
| May | 79.7°F | 75.4°F | 86.4°F | hot |
| Sea water temperature in Treasure Cay in May | ||||
| June | 82.9°F | 77.4°F | 87.8°F | hot |
| Sea water temperature in Treasure Cay in June | ||||
| July | 85.1°F | 81.9°F | 89.1°F | hot |
| Sea water temperature in Treasure Cay in July | ||||
| August | 85.8°F | 82.8°F | 89.4°F | hot |
| Sea water temperature in Treasure Cay in August | ||||
| September | 84.9°F | 81°F | 88°F | hot |
| Sea water temperature in Treasure Cay in September | ||||
| October | 82°F | 76.8°F | 86.7°F | hot |
| Sea water temperature in Treasure Cay in October | ||||
| November | 78.3°F | 71.4°F | 82.6°F | hot |
| Sea water temperature in Treasure Cay in November | ||||
| December | 75.7°F | 71.1°F | 80.1°F | warm |
| Sea water temperature in Treasure Cay in December | ||||
Chart monthly average water temperature in Treasure Cay
