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Water temperature in Cape Henlopen (DE) in December

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Is it warm enough to swim in Cape Henlopen in December? Average water temperature in Cape Henlopen in December is 47.5°F and therefore is not suitable for comfortable swimming. The warmest sea in Cape Henlopen in December is 55.6°F, and the coldest is 38.7°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 December 2024, 2023

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 December.

You can choose any other years:

Year 1:   Year 2:


Day 2024 2023 Min Max
December 152.9°F50.4°F48.2°F55.6°F
December 252.3°F50.5°F47.7°F55.4°F
December 351.6°F49.8°F47.7°F54.9°F
December 450.5°F50°F47.5°F54.3°F
December 549.6°F50.2°F46.4°F54°F
December 649.1°F49.8°F46.6°F54°F
December 748.4°F49.8°F46.4°F53.1°F
December 847.3°F48.7°F45.1°F52.7°F
December 946.2°F48.7°F45.5°F51.8°F
December 1046.4°F50°F46.2°F52.3°F
December 1146.9°F50.2°F45.7°F51.8°F
December 1247.3°F49.1°F44.8°F51.3°F
December 1346.9°F49.3°F44.4°F51.4°F
December 1446.2°F48.9°F44.2°F51.4°F
December 1545.9°F48.9°F44.6°F54°F
Day 2024 2023 Min Max
December 1646°F48.2°F44.6°F53.1°F
December 1747.3°F47.8°F44.8°F52.7°F
December 1846.8°F49.1°F43.9°F51.6°F
December 1946.2°F48°F43.7°F51.1°F
December 2046.4°F47.3°F43.3°F51.1°F
December 2145.7°F46.9°F41.4°F50.7°F
December 2244.8°F45.5°F41.5°F50.5°F
December 2344.6°F46.2°F41.4°F50.9°F
December 2443.5°F46°F38.7°F51.4°F
December 2542.3°F45.9°F39.2°F50.9°F
December 2642.3°F45.5°F39.7°F49.6°F
December 2741.7°F45.3°F40.3°F49.5°F
December 2842.1°F46.8°F39.4°F49.8°F
December 2943.7°F47.1°F39.7°F51.8°F
December 3043.7°F46.6°F40.5°F50.9°F
December 3144.2°F46.4°F40.8°F50.9°F
Cape Henlopen water temp chart in December

Average water temperature in Cape Henlopen in December over a decade

20152016201720182019
51.6°F47.5°F48.4°F45.7°F45.9°F
20202021202220232024
49.8°F49.5°F47.1°F48.2°F46.4°F

Cape Henlopen sea state in December

Chart comparing the height of waves in Cape Henlopen in December 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 December

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 December?

Want to know where the water temperature in December 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 December. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Broadkill Beach46.6°F37.8°F55°F
Towers Beach48.2°F39.4°F55.9°F
Rehoboth Bay48°F39.4°F56.1°F
Cape May Point46.9°F38.3°F55.9°F
Lower Township46.6°F38.1°F55.4°F
Wildwood48.2°F38.7°F56.7°F
Villas45.3°F37.2°F54°F
Dover44.2°F35.8°F52.3°F
Avalon48.2°F39°F56.7°F
Ocean City49.3°F40.5°F57.4°F

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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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