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South Bethany
Water Temperature in the Atlantic Ocean in South Bethany, Delaware: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in South Bethany in Delaware, 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 South Bethany
38°F
TODAY
40°F
YESTERDAY
39°F
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Atlantic Ocean in South Bethany is 4.3°F. Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters.
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 South Bethany Over the Last 30 Days
The water temperature in South Bethany 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 South Bethany will remain nearly unchanged in the coming days, its value will be 40°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 South Bethany 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 | 39°F | 40°F | |
| Feb 16 | 39°F | 40°F | |
| Feb 17 | 39°F | 39°F | |
| Feb 18 | 40°F | 40°F | |
| Feb 19 | 40°F | 40°F | |
| Feb 20 | 40°F | 40°F | |
| Feb 21 | 40°F | 40°F | |
| Feb 22 | 39°F | 41°F | |
| Feb 23 | 39 | 38°F | |
| Feb 24 | 39 | 38°F | |
| Feb 25 | 41 | 39°F | |
| Feb 26 | 40 | 39°F | |
| Feb 27 | 41 | 39°F | |
| Feb 28 | 41 | 39°F | |
| Mar 1 | 41 | 39°F | |
| Mar 2 | 41 | 40°F |
Sea Temperature in South Bethany Throughout the Year
Throughout the year, the sea temperature in South Bethany exceeds 77°F (25°C) for 2 days, exceeds 72°F (22°C) for 69 days, and exceeds 64°F (18°C) for 136 days.
Below is the annual chart of sea temperature changes in the Atlantic Ocean in South Bethany.
January
| Minimum | Average | Maximum |
|---|---|---|
| 34°F | 42°F | 50°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 36°F | 40°F | 45°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 44°F | 50°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 48°F | 57°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 57°F | 68°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 59°F | 68°F | 77°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 66°F | 73°F | 79°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 70°F | 76°F | 82°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 64°F | 73°F | 81°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 57°F | 65°F | 73°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 48°F | 56°F | 64°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 46°F | 54°F |
Monthly Water Temperature Histogram for Atlantic Ocean in South Bethany
You can explore detailed data on how the water temperature in South Bethany varies each month:
What Beaches Are There In and Around South Bethany?
Middlesex Beach
Middlesex Beach is a 5-stars sandy beach, is located directly in South Bethany. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
South Bethany Beach
South Bethany Beach is a 5-stars sandy beach, is located directly in South Bethany. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
York Beach
York Beach is a 3-stars sandy beach, is located directly in South Bethany. There are restrooms. York Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing.
Bethany Beach
Bethany Beach is a 5-stars sandy beach, located in a 2 km (1 miles) radius of South Bethany. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Fenwick Island State Park Beach North
Fenwick Island State Park Beach North is a 5-stars sandy beach, located in a 3 km (2 miles) radius of South Bethany. There are lifeguards on the beach. There is parking. There are restrooms. Fenwick Island State Park Beach North is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Fenwick Island State Park
Fenwick Island State Park is a 3-stars sandy beach, located in a 5 km (3 miles) radius of South Bethany. There are lifeguards on the beach. For those who prefer clothing-optional beaches, Fenwick Island State Park is a designated nudist beach. There are restrooms. It is suitable for surfing.
Lighthouse Rd Beach
Lighthouse Rd Beach is a 3-stars sandy beach, located in a 7 km (4 miles) radius of South Bethany. There are lifeguards on the beach. There is parking.
Fenwick Island State Park Beach South
Fenwick Island State Park Beach South is a 5-stars sandy beach, located in a 7 km (4 miles) radius of South Bethany. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
State Line Beach
State Line Beach is a 3-stars sandy beach, located in a 7 km (4 miles) radius of South Bethany. There are lifeguards on the beach. There is parking. There are shops. There are cafés.
Maryland Beach
Maryland Beach is a 3-stars sandy beach, located in a 8 km (5 miles) radius of South Bethany. There are lifeguards on the beach. There is parking. There are shops. There are cafés.
South Bethany Weather
FEBRUARY 23
34°F / 50°F
few clouds: 11-25%humidity: 58% | wind: 2 mph
FEBRUARY 24
39°F / 57°F
clear skyhumidity: 76% | wind: 2 mph
FEBRUARY 25
43°F / 59°F
clear skyhumidity: 72% | wind: 2 mph
FEBRUARY 26
45°F / 54°F
clear skyhumidity: 75% | wind: 3 mph
Sea Temperature in the Atlantic Ocean in South Bethany: General Trends and Swimming Opportunities
The coastal area in Delaware, United States, experiences a moderate maritime climate haracterized by warm, humid summers and mild winters. Due to the moderating influence of the Atlantic Ocean, it also has medium to high levels of humidity year-round with precipitation evenly distributed throughout the year.
South Bethany is located in North America in the Northern Hemisphere at a latitude of 39 degrees, along the shores of the Atlantic Ocean. South Bethany lies within the Delaware in United States.
The average annual daytime air temperature in South Bethany is 64°F (18°C), with the average nighttime temperature being 46°F (8°C). The highest average daily temperature occurs in July, reaching 85°F (29°C), while the lowest is in January at 42°F (6°C). As for nighttime temperatures, the minimum average temperature of 28°F (-2°C) is recorded in January, and the maximum is in July, reaching 68°F (20°C).
According to historical data, South Bethany experiences 117 rainy days per year, which accounts for 32 percent of all days in the year. On average, there are 10 rainy days each month. The wettest month is May, with 10 rainy days and 3.6 inches (92 mm) of precipitation, while the driest month is October, which typically has 8 rainy days and only 3.5 inches (88 mm) of precipitation.
The average annual water temperature in Atlantic Ocean in South Bethany is 57°F (14°C). In January, the water reaches its lowest point of the year at 34°F (1°C), while in August, it peaks at 82°F (28°C). The month suitable for comfortable beach vacations and swimming in the Atlantic Ocean is August. During this month, the water temperature stays above 68°F (20°C) and can reach up to 82°F (28°C) on some days.
Geographical Location of South Bethany
Nearby Cities
Frequently Asked Questions About South Bethany and its Water Temperatures
What is the current sea temperature in South Bethany?
The water temperature today in the Atlantic Ocean in South Bethany is 38°F (3.3°C).
In which months is the water temperature in South Bethany comfortable for swimming?
The water temperature in the Atlantic Ocean in South Bethany is comfortable for swimming and beach vacations in August.
What is the water temperature in South Bethany during the winter?
The water temperature in the Atlantic Ocean in South Bethany during the winter ranges from 34°F to 54°F (1°C to 12°C).
What is the water temperature in South Bethany during the spring?
The water temperature in the Atlantic Ocean in South Bethany during the spring ranges from 37°F to 68°F (3°C to 20°C).
What is the water temperature in South Bethany during the summer?
The water temperature in the Atlantic Ocean in South Bethany during the summer ranges from 59°F to 82°F (15°C to 28°C).
What is the water temperature in South Bethany during the fall?
The water temperature in the Atlantic Ocean in South Bethany during the fall ranges from 48°F to 81°F (9°C to 27°C).
Is it possible to swim in the sea in South Bethany at any time of the year?
The Atlantic Ocean in South Bethany is quite cool, and swimming is only possible in June, July, August, September, and October when the water temperature reaches 70°F (21°C).
What sea temperatures can I expect in South Bethany in the next month?
In March, the water temperature in the Atlantic Ocean in South Bethany will range between 37°F (3°C) and 50°F (10°C)