This data the coastal Rock Hall 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.
Water temperature in Rock Hall today is 75.2°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Rock Hall was recorded in 2018 and was 84.6°F, and the coldest was recorded in 2017 at 73.9°F. Sea water temperature in Rock Hall is expected to rise to 75.4°F in the next 10 days. September average water temperature in Rock Hall is 75°F, the minimum temperature is 67.6°F, and the maximum is 85.1°F.
The swimming season in Rock Hall lasts from June to October. During those months, Rock Hall water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Rock Hall in winter reaches 39.4°F, in spring 53.2°F, in summer the average temperature rises to 78.3°F, and in autumn it is 64.6°F.
September 5, 2025 |
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today temp |
75.2°F |
September 4, 2025 |
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yesterday temp |
74.8°F |
The ocean salinity in Rock Hall is 0.01‰, and the average salinity of the World Ocean is 35‰.
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 Rock Hall. 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 Rock Hall. Data in table shown for September 5, 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 |
---|---|---|---|
0' 10" | 0' 9" | 0' 7" | 0' 7" |
0.26 m | 0.23 m | 0.19 m | 0.17 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
0' 5" | 0' 5" | 1' 1" | 0' 11" |
0.13 m | 0.12 m | 0.32 m | 0.29 m |
Data in a table show Rock Hall temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast Rock Hall.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
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![]() | ![]() | ![]() | ![]() |
73.8°F | 72.9°F | 70.5°F | 73°F |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
82.9°F | 84.4°F | 82°F | 78.1°F |
You may also be interested in other sections of our site for Rock Hall: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly sea temperature in Rock Hall. 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 Rock Hall 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 | |
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January | 37.6°F | 30.9°F | 47.8°F | cold |
Ocean water temperature in Rock Hall in January | ||||
February | 36.9°F | 29.8°F | 46.9°F | cold |
Ocean water temperature in Rock Hall in February | ||||
March | 43.7°F | 31.5°F | 56.1°F | cold |
Ocean water temperature in Rock Hall in March | ||||
April | 53.4°F | 42.8°F | 64.8°F | cold |
Ocean water temperature in Rock Hall in April | ||||
May | 62.8°F | 46.2°F | 76.6°F | cold |
Ocean water temperature in Rock Hall in May | ||||
June | 73.9°F | 64.6°F | 84°F | warm |
Ocean water temperature in Rock Hall in June | ||||
July | 80.6°F | 73°F | 88°F | hot |
Ocean water temperature in Rock Hall in July | ||||
August | 80.2°F | 75.4°F | 86°F | hot |
Ocean water temperature in Rock Hall in August | ||||
September | 75°F | 67.6°F | 85.1°F | warm |
Ocean water temperature in Rock Hall in September | ||||
October | 65.1°F | 56.1°F | 76.5°F | cold |
Ocean water temperature in Rock Hall in October | ||||
November | 53.4°F | 42.8°F | 63.5°F | cold |
Ocean water temperature in Rock Hall in November | ||||
December | 43.5°F | 35.1°F | 52.3°F | cold |
Ocean water temperature in Rock Hall in December |