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Dewey Beach
Water Temperature in the Atlantic Ocean in Dewey Beach, Delaware: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Dewey Beach 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 Dewey Beach
37°F
TODAY
39°F
YESTERDAY
38°F
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Atlantic Ocean in Dewey Beach is 3.9°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 Dewey Beach Over the Last 30 Days
The water temperature in Dewey Beach 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 Dewey Beach will remain nearly unchanged in the coming days, its value will be 39°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 Dewey Beach 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 | 38°F | 40°F | |
| Feb 16 | 38°F | 39°F | |
| Feb 17 | 38°F | 38°F | |
| Feb 18 | 39°F | 41°F | |
| Feb 19 | 40°F | 40°F | |
| Feb 20 | 40°F | 38°F | |
| Feb 21 | 39°F | 41°F | |
| Feb 22 | 38°F | 38°F | |
| Feb 23 | 40 | 38°F | |
| Feb 24 | 40 | 38°F | |
| Feb 25 | 42 | 38°F | |
| Feb 26 | 42 | 39°F | |
| Feb 27 | 40 | 39°F | |
| Feb 28 | 40 | 39°F | |
| Mar 1 | 41 | 39°F | |
| Mar 2 | 42 | 39°F |
Sea Temperature in Dewey Beach Throughout the Year
Throughout the year, the sea temperature in Dewey Beach exceeds 77°F (25°C) for 2 days, exceeds 72°F (22°C) for 69 days, and exceeds 64°F (18°C) for 135 days.
Below is the annual chart of sea temperature changes in the Atlantic Ocean in Dewey Beach.
January
| Minimum | Average | Maximum |
|---|---|---|
| 34°F | 40°F | 46°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 | 56°F | 66°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 |
|---|---|---|
| 68°F | 75°F | 82°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 64°F | 72°F | 79°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 57°F | 65°F | 73°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 55°F | 64°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 46°F | 54°F |
Monthly Water Temperature Histogram for Atlantic Ocean in Dewey Beach
You can explore detailed data on how the water temperature in Dewey Beach varies each month:
What Beaches Are There In and Around Dewey Beach?
Dewey Beach
Dewey Beach is a 4-stars sandy beach, is located directly in Dewey Beach. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. 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.
Towers Beach
Towers Beach is a 5-stars sandy beach, located in a 2 km (1 miles) radius of Dewey Beach. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Towers Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing.
Indian Beach
Indian Beach is a 1-stars sandy beach, located in a 2 km (1 miles) radius of Dewey Beach.
Rehoboth Beach
Rehoboth Beach is a 5-stars sandy beach, located in a 2 km (1 miles) radius of Dewey Beach. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Rehoboth 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.
Deauville Beach
Deauville Beach is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Dewey Beach.
Henlopen Acres
Henlopen Acres is a 5-stars sandy beach, located in a 4 km (2 miles) radius of Dewey Beach. 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.
Whiskey Beach
Whiskey Beach is a 1-stars sandy beach, located in a 5 km (3 miles) radius of Dewey Beach.
Gordons Pond State Park Area
Gordons Pond State Park Area is a 2-stars sandy beach, located in a 5 km (3 miles) radius of Dewey Beach. There is parking.
Mallard Beach
Mallard Beach is a 1-stars sandy beach, located in a 6 km (4 miles) radius of Dewey Beach.
Arrowhead Point
Arrowhead Point is a 3-stars sandy beach, located in a 7 km (4 miles) radius of Dewey Beach. There is parking. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Herring Point
Herring Point is a 4-stars sandy beach, located in a 8 km (5 miles) radius of Dewey Beach. There are lifeguards on the beach. There is parking. There are restrooms. Herring Point is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. 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.
Nats Cove
Nats Cove is a 3-stars sandy beach, located in a 8 km (5 miles) radius of Dewey Beach. There is parking. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Fort Miles Historical Area
Fort Miles Historical Area is a 2-stars sandy beach, located in a 9 km (6 miles) radius of Dewey Beach. There is parking. There are restrooms.
Cape Henlopen State Park
Cape Henlopen State Park is a 5-stars sandy beach, located in a 10 km (6 miles) radius of Dewey Beach. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. It is suitable for surfing.
Indian River Marina
Indian River Marina is a 4-stars sandy beach, located in a 10 km (6 miles) radius of Dewey Beach. There are restrooms. There are cafés. Indian River Marina 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.
South Indian River Inlet Beach
South Indian River Inlet Beach is a 4-stars sandy beach, located in a 10 km (6 miles) radius of Dewey Beach. There is parking. There are restrooms. South Indian River Inlet Beach 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.
Coin Beach
Coin Beach is a 1-stars sandy beach, located in a 10 km (6 miles) radius of Dewey Beach.
Dewey Beach 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 Dewey Beach: 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.
Dewey Beach is located in North America in the Northern Hemisphere at a latitude of 39 degrees, along the shores of the Atlantic Ocean. Dewey Beach lies within the Delaware in United States.
The average annual daytime air temperature in Dewey Beach 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, Dewey Beach 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 Dewey Beach 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). In Dewey Beach, the water temperature in the Atlantic Ocean never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Dewey Beach
Nearby Cities
Frequently Asked Questions About Dewey Beach and its Water Temperatures
What is the current sea temperature in Dewey Beach?
The water temperature today in the Atlantic Ocean in Dewey Beach is 37°F (3°C).
In which months is the water temperature in Dewey Beach comfortable for swimming?
It cannot be guaranteed that the water temperature in Dewey Beach will be comfortable for swimming in any month of the year.
What is the water temperature in Dewey Beach during the winter?
The water temperature in the Atlantic Ocean in Dewey Beach during the winter ranges from 34°F to 54°F (1°C to 12°C).
What is the water temperature in Dewey Beach during the spring?
The water temperature in the Atlantic Ocean in Dewey Beach during the spring ranges from 37°F to 66°F (3°C to 19°C).
What is the water temperature in Dewey Beach during the summer?
The water temperature in the Atlantic Ocean in Dewey Beach during the summer ranges from 59°F to 82°F (15°C to 28°C).
What is the water temperature in Dewey Beach during the fall?
The water temperature in the Atlantic Ocean in Dewey Beach during the fall ranges from 46°F to 79°F (8°C to 26°C).
Is it possible to swim in the sea in Dewey Beach at any time of the year?
The Atlantic Ocean in Dewey Beach is quite cool, and swimming is only possible in June, July, August, September, and October when the water temperature reaches 70°F (21°C).
Is Dewey Beach a popular tourist destination for beach vacations?
Dewey Beach has a moderate level of popularity for beach vacations; while it does receive some visitors, it is not among the top seaside destinations, as other locations may offer more favorable conditions.
What sea temperatures can I expect in Dewey Beach in the next month?
In March, the water temperature in the Atlantic Ocean in Dewey Beach will range between 37°F (3°C) and 50°F (10°C)