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Sullivan's Island
Water Temperature in the Atlantic Ocean in Sullivan's Island, South Carolina: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Sullivan's Island in South Carolina, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Sullivan's Island
54°F
TODAY
56°F
YESTERDAY
56°F
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Atlantic Ocean in Sullivan's Island is 13.3°F. The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart for Atlantic Ocean in Sullivan's Island Over the Last 30 Days
The water temperature in Sullivan's Island today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Sullivan's Island will rise slightly in the coming days and reach 57°F.
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across United States to enhance accuracy.
Water temperature data for Sullivan's Island and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Feb 15 | 56°F | 58°F | |
| Feb 16 | 56°F | 57°F | |
| Feb 17 | 57°F | 58°F | |
| Feb 18 | 55°F | 60°F | |
| Feb 19 | 55°F | 58°F | |
| Feb 20 | 55°F | 59°F | |
| Feb 21 | 56°F | 57°F | |
| Feb 22 | 55°F | 60°F | |
| Feb 23 | 59 | 54°F | |
| Feb 24 | 59 | 55°F | |
| Feb 25 | 59 | 55°F | |
| Feb 26 | 59 | 55°F | |
| Feb 27 | 57 | 56°F | |
| Feb 28 | 60 | 56°F | |
| Mar 1 | 61 | 56°F | |
| Mar 2 | 60 | 57°F |
Sea Temperature in Sullivan's Island Throughout the Year
Throughout the year, the sea temperature in Sullivan's Island exceeds 77°F (25°C) for 132 days, exceeds 72°F (22°C) for 172 days, and exceeds 64°F (18°C) for 229 days.
Below is the annual chart of sea temperature changes in the Atlantic Ocean in Sullivan's Island.
January
| Minimum | Average | Maximum |
|---|---|---|
| 54°F | 61°F | 68°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 54°F | 60°F | 66°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 55°F | 61°F | 66°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 59°F | 66°F | 73°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 66°F | 73°F | 79°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 72°F | 78°F | 84°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 79°F | 83°F | 88°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 79°F | 83°F | 88°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 75°F | 81°F | 86°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 68°F | 74°F | 81°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 57°F | 66°F | 75°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 60°F | 70°F |
Monthly Water Temperature Histogram for Atlantic Ocean in Sullivan's Island
You can explore detailed data on how the water temperature in Sullivan's Island varies each month:
What Beaches Are There In and Around Sullivan's Island?
Sullivan's Island Nature Trails
Sullivan's Island Nature Trails is a 1-stars sandy beach, is located directly in Sullivan's Island.
Station 21
Station 21 is a 1-stars sandy beach, is located directly in Sullivan's Island.
Sullivan's Island Beach
Sullivan's Island Beach is a 5-stars sandy beach, is located directly in Sullivan's Island. There is parking. There are restrooms. There are cafés. Sullivan's Island Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Station 18 Beach
Station 18 Beach is a 2-stars sandy beach, is located directly in Sullivan's Island. There is parking. There are restrooms.
Station 22
Station 22 is a 1-stars sandy beach, is located directly in Sullivan's Island.
Station 23
Station 23 is a 1-stars sandy beach, is located directly in Sullivan's Island.
Station 24
Station 24 is a 2-stars sandy beach, is located directly in Sullivan's Island. There is parking.
Old Bridge Landing
Old Bridge Landing is a 2-stars sandy beach, located in a 2 km (1 miles) radius of Sullivan's Island. There is parking.
Station 28
Station 28 is a 1-stars sandy beach, located in a 2 km (1 miles) radius of Sullivan's Island.
Station 28 1/2
Station 28 1/2 is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Sullivan's Island.
Station 29
Station 29 is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Sullivan's Island.
Thomson Park
Thomson Park is a 2-stars sandy beach, located in a 3 km (2 miles) radius of Sullivan's Island. There is parking. Thomson Park is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible.
Breach Inlet
Breach Inlet is a 2-stars sandy beach, located in a 4 km (2 miles) radius of Sullivan's Island. There are restrooms. There are cafés.
Edisto Island
Edisto Island is a 4-stars sandy beach, located in a 6 km (4 miles) radius of Sullivan's Island. There is parking. There are restrooms. There are cafés. Edisto Island is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Front Beach IOP
Front Beach IOP is a 4-stars sandy beach, located in a 6 km (4 miles) radius of Sullivan's Island. There are lifeguards on the beach. There are restrooms. There are cafés. Snorkeling is possible. It is suitable for surfing.
Isle Of Palms Beach
Isle Of Palms Beach is a 5-stars sandy beach, located in a 6 km (4 miles) radius of Sullivan's Island. There are lifeguards on the beach. There is parking. There are restrooms. Isle Of Palms Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. There is a shark hazard on the beach. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Sullivan's Island Weather
FEBRUARY 24
46°F / 64°F
light rainhumidity: 76% | wind: 1 mph
FEBRUARY 25
52°F / 64°F
clear skyhumidity: 63% | wind: 1 mph
FEBRUARY 26
55°F / 68°F
clear skyhumidity: 73% | wind: 2 mph
Sea Temperature in the Atlantic Ocean in Sullivan's Island: General Trends and Swimming Opportunities
The coastal region of South Carolina, United States typically experiences a humid subtropical climate with hot, humid summers and mild winters. It gets ample rainfall throughout the year, with the late summer and early fall being the most active period for hurricanes.
Sullivan's Island is located in North America in the Northern Hemisphere at a latitude of 33 degrees, along the shores of the Atlantic Ocean. Sullivan's Island lies within the South Carolina in United States.
The average annual daytime air temperature in Sullivan's Island is 75°F (24°C), with the average nighttime temperature being 57°F (14°C). The highest average daily temperature occurs in July, reaching 89°F (32°C), while the lowest is in January at 58°F (15°C). As for nighttime temperatures, the minimum average temperature of 40°F (4°C) is recorded in January, and the maximum is in July, reaching 74°F (24°C).
According to historical data, Sullivan's Island experiences 110 rainy days per year, which accounts for 30 percent of all days in the year. On average, there are 9 rainy days each month. The wettest month is July, with 12 rainy days and 6.0 inches (152 mm) of precipitation, while the driest month is October, which typically has 6 rainy days and only 3.7 inches (95 mm) of precipitation.
The average annual water temperature in Atlantic Ocean in Sullivan's Island is 70°F (21°C). In December, the water reaches its lowest point of the year at 50°F (10°C), while in July, it peaks at 88°F (31°C). The months suitable for comfortable beach vacations and swimming in the Atlantic Ocean are June, July, August, and September. During this period, the water temperature stays above 68°F (20°C) and can reach up to 88°F (31°C) on some days.
Geographical Location of Sullivan's Island
Nearby Cities
Frequently Asked Questions About Sullivan's Island and its Water Temperatures
What is the current sea temperature in Sullivan's Island?
The water temperature today in the Atlantic Ocean in Sullivan's Island is 54°F (12°C).
In which months is the water temperature in Sullivan's Island comfortable for swimming?
The water temperature in the Atlantic Ocean in Sullivan's Island is comfortable for swimming and beach vacations in June, July, August, and September.
What is the water temperature in Sullivan's Island during the winter?
The water temperature in the Atlantic Ocean in Sullivan's Island during the winter ranges from 50°F to 70°F (10°C to 21°C).
What is the water temperature in Sullivan's Island during the spring?
The water temperature in the Atlantic Ocean in Sullivan's Island during the spring ranges from 55°F to 79°F (13°C to 26°C).
What is the water temperature in Sullivan's Island during the summer?
The water temperature in the Atlantic Ocean in Sullivan's Island during the summer ranges from 72°F to 88°F (22°C to 31°C).
What is the water temperature in Sullivan's Island during the fall?
The water temperature in the Atlantic Ocean in Sullivan's Island during the fall ranges from 57°F to 86°F (14°C to 30°C).
Is it possible to swim in the sea in Sullivan's Island year-round?
No, it is not possible to swim in the Atlantic Ocean in Sullivan's Island year-round, the months suitable for comfortable swimming are June, July, August, and September.
What sea temperatures can I expect in Sullivan's Island in the next month?
In March, the water temperature in the Atlantic Ocean in Sullivan's Island will range between 55°F (13°C) and 66°F (19°C)