Myrtle Beach water temp
This data the coastal Myrtle 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 Myrtle Beach
Water temperature in Myrtle Beach today is 77.7°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Myrtle Beach was recorded in 2018 and was 82.2°F, and the coldest was recorded in 2020 at 75.7°F. Sea water temperature in Myrtle Beach is expected to drop to 77.4°F in the next 10 days. September average water temperature in Myrtle Beach is 80.6°F, the minimum temperature is 75.4°F, and the maximum is 85.1°F.
The swimming season in Myrtle Beach lasts from May to November. During those months, Myrtle Beach water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Myrtle Beach in winter reaches 59.2°F, in spring 65.5°F, in summer the average temperature rises to 81.1°F, and in autumn it is 73.6°F.
Myrtle Beach water temperature now
| September 22, 2025 |
|---|
| today temp |
| 77.7°F |
| September 21, 2025 |
|---|
| yesterday temp |
| 77.7°F |
The ocean salinity in Myrtle Beach is 33.36‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Myrtle 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 Myrtle 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 Myrtle Beach. Data in table shown for September 22, 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 |
|---|---|---|---|
| 3' 3" | 3' 2" | 2' 11" | 2' 9" |
| 0.98 m | 0.97 m | 0.9 m | 0.83 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 2' 7" | 2' 7" | 2' 8" | 2' 9" |
| 0.79 m | 0.78 m | 0.81 m | 0.85 m |
Surf report in Myrtle Beach
Myrtle Beach weather forecast
Current temperature and weather
Data in a table show Myrtle Beach temperature today (September 22, 2025). For more information and forecast for a few days, go to the weather forecast Myrtle Beach.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | |  |
| 73.6°F | 71.8°F | 69.4°F | 68.5°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
|  |  | |
| 70.7°F | 75.6°F | 75.7°F | 74.1°F |
You may also be interested in other sections of our site for Myrtle Beach: Sunrise and Sunset, Tides
Myrtle Beach water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Myrtle 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 Myrtle 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 | 58.6°F | 45.3°F | 69.1°F | cold |
| Ocean water temperature in Myrtle Beach in January | ||||
| February | 57.7°F | 47.7°F | 65.8°F | cold |
| Ocean water temperature in Myrtle Beach in February | ||||
| March | 59.9°F | 51.8°F | 66.7°F | cold |
| Ocean water temperature in Myrtle Beach in March | ||||
| April | 64.6°F | 55.6°F | 73°F | cold |
| Ocean water temperature in Myrtle Beach in April | ||||
| May | 72.1°F | 64.9°F | 80.4°F | warm |
| Ocean water temperature in Myrtle Beach in May | ||||
| June | 78.8°F | 71.1°F | 84°F | hot |
| Ocean water temperature in Myrtle Beach in June | ||||
| July | 82°F | 77°F | 86°F | hot |
| Ocean water temperature in Myrtle Beach in July | ||||
| August | 82.4°F | 79.2°F | 85.1°F | hot |
| Ocean water temperature in Myrtle Beach in August | ||||
| September | 80.6°F | 75.4°F | 85.1°F | hot |
| Ocean water temperature in Myrtle Beach in September | ||||
| October | 73.9°F | 67.6°F | 81.9°F | warm |
| Ocean water temperature in Myrtle Beach in October | ||||
| November | 66.2°F | 57.6°F | 73°F | cold |
| Ocean water temperature in Myrtle Beach in November | ||||
| December | 61.2°F | 50°F | 69.3°F | cold |
| Ocean water temperature in Myrtle Beach in December | ||||
Chart monthly average water temperature in Myrtle Beach
