Diamond Beach water temp
This data the coastal Diamond Beach ocean 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 ocean temperature in Diamond Beach
Water temperature in Diamond Beach today is 72.1°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Diamond Beach was recorded in 2018 and was 73.4°F, and the coldest was recorded in 2013 at 66.7°F. Sea water temperature in Diamond Beach is expected to drop to 68.5°F in the next 10 days. September average water temperature in Diamond Beach is 72.5°F, the minimum temperature is 66.6°F, and the maximum is 79.7°F.
The swimming season in Diamond Beach lasts from June to October. During those months, Diamond Beach water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Diamond Beach in winter reaches 43.5°F, in spring 49.6°F, in summer the average temperature rises to 72°F, and in autumn it is 64.9°F.
Diamond Beach water temperature now
| September 26, 2025 |
|---|
| today temp |
| 72.1°F |
| September 25, 2025 |
|---|
| yesterday temp |
| 72°F |
The ocean salinity in Diamond Beach is 29.92‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Diamond Beach 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 Diamond Beach. 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 Diamond Beach. 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 |
|---|---|---|---|
| 2' 11" | 2' 11" | 2' 8" | 2' 5" |
| 0.9 m | 0.89 m | 0.81 m | 0.74 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 2' 3" | 2' 2" | 2' 0" | 1' 11" |
| 0.68 m | 0.65 m | 0.62 m | 0.59 m |
Surf report in Diamond Beach
Diamond Beach weather forecast
Current temperature and weather
Data in a table show Diamond Beach temperature today (September 26, 2025). For more information and forecast for a few days, go to the weather forecast Diamond Beach.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 |  |  |  |
| 74.1°F | 71.6°F | 70.5°F | 72.3°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| | | |
| 78.1°F | 80.2°F | 78.1°F | 74.8°F |
You may also be interested in other sections of our site for Diamond Beach: Sunrise and Sunset, Tides
Diamond Beach water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Diamond Beach. 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 Diamond Beach 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 | 42.4°F | 35.6°F | 50.9°F | cold |
| Ocean water temperature in Diamond Beach in January | ||||
| February | 40.1°F | 33.1°F | 48.2°F | cold |
| Ocean water temperature in Diamond Beach in February | ||||
| March | 42.6°F | 33.3°F | 52.3°F | cold |
| Ocean water temperature in Diamond Beach in March | ||||
| April | 48.7°F | 40.3°F | 57°F | cold |
| Ocean water temperature in Diamond Beach in April | ||||
| May | 57.6°F | 49.3°F | 70.3°F | cold |
| Ocean water temperature in Diamond Beach in May | ||||
| June | 67.3°F | 58.6°F | 76.3°F | cold |
| Ocean water temperature in Diamond Beach in June | ||||
| July | 74.1°F | 64.8°F | 80.2°F | warm |
| Ocean water temperature in Diamond Beach in July | ||||
| August | 74.7°F | 64.8°F | 79.7°F | warm |
| Ocean water temperature in Diamond Beach in August | ||||
| September | 72.5°F | 66.6°F | 79.7°F | warm |
| Ocean water temperature in Diamond Beach in September | ||||
| October | 65.7°F | 56.5°F | 73.9°F | cold |
| Ocean water temperature in Diamond Beach in October | ||||
| November | 56.5°F | 48.4°F | 64.4°F | cold |
| Ocean water temperature in Diamond Beach in November | ||||
| December | 48.2°F | 39°F | 56.7°F | cold |
| Ocean water temperature in Diamond Beach in December | ||||
Chart monthly average water temperature in Diamond Beach
