World sea water temperatures

Water temperature in Cape Henlopen (DE) in April

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Is it warm enough to swim in Cape Henlopen in April? Average water temperature in Cape Henlopen in April is 49.8°F and therefore is not suitable for comfortable swimming. The warmest sea in Cape Henlopen in April is 58.1°F, and the coldest is 41°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Cape Henlopen

Changes water temperature in Cape Henlopen in April 2025, 2024

To get an accurate forecast for the water temperature in Cape Henlopen for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Cape Henlopen, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of April.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
April 148.2°F47.8°F41°F49.8°F
April 248.7°F47.8°F41.7°F50.2°F
April 348.6°F47.8°F42.1°F50.2°F
April 449.3°F47.8°F42.1°F52°F
April 546.8°F47.8°F42.8°F51.4°F
April 647.5°F47.1°F43.5°F50.5°F
April 748.6°F47.7°F44.1°F51.1°F
April 850°F47.7°F44.1°F54.1°F
April 950°F48.4°F44.1°F52.7°F
April 1049.5°F48.7°F44.4°F51.8°F
April 1149.6°F48.6°F45°F52.7°F
April 1249.5°F50°F45.7°F52.3°F
April 1348.4°F50.2°F45.5°F54.3°F
April 1449.1°F50.4°F45.7°F55.4°F
April 1549.5°F52.5°F46°F54.1°F
Day 2025 2024 Min Max
April 1649.3°F52.2°F46.4°F54.9°F
April 1749.3°F52.5°F45.7°F55.6°F
April 1848.9°F52.3°F46°F55.2°F
April 1949.6°F50°F45.9°F54.5°F
April 2049.8°F50.7°F46.2°F55°F
April 2151.3°F52.2°F47.5°F55.9°F
April 2252.5°F52.7°F48.4°F55.2°F
April 2353.8°F52.5°F48.7°F55.9°F
April 2452.9°F53.2°F49.1°F55.8°F
April 2553.4°F52°F48.9°F56.3°F
April 2653.1°F52.2°F48.6°F55.9°F
April 2752.5°F52.2°F50°F56.3°F
April 2853.1°F53.8°F50.4°F57.2°F
April 2953.6°F55.6°F50°F58.1°F
April 3053.4°F54°F49.6°F56.5°F
Cape Henlopen water temp chart in April

Average water temperature in Cape Henlopen in April over a decade

20162017201820192020
50.4°F50.7°F46.8°F50.4°F50°F
20212022202320242025
50.7°F49.6°F52.7°F50.5°F50.4°F

Cape Henlopen sea state in April

Chart comparing the height of waves in Cape Henlopen in April over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Cape Henlopen in April

Cape Henlopen water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in April?

Want to know where the water temperature in April is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in April. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Broadkill Beach50.5°F41.4°F58.6°F
Towers Beach49.5°F40.8°F57.9°F
Rehoboth Bay49.8°F41.2°F58.1°F
Cape May Point49.5°F40.8°F57.9°F
Lower Township49.8°F41°F58.1°F
Wildwood48.6°F40.3°F56.7°F
Villas50.7°F41.5°F61.5°F
Dover52°F42.1°F61.9°F
Avalon48.4°F40.5°F56.1°F
Ocean City49.6°F41.2°F58.1°F

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  • rural Delaware Bay, middle section, Nantuxent Cove, picture taken at Money Island NJ
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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Cape Henlopen is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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