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Water temperature in Slaughter Beach (DE) in April

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Is it warm enough to swim in Slaughter Beach in April? Average water temperature in Slaughter Beach in April is 51.1°F and therefore is not suitable for comfortable swimming. The warmest sea in Slaughter Beach in April is 59.9°F, and the coldest is 41.7°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Slaughter Beach

Changes water temperature in Slaughter Beach in April 2025, 2024

To get an accurate forecast for the water temperature in Slaughter Beach for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Slaughter Beach, 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 150.5°F48.4°F41.7°F50.5°F
April 252.9°F48.4°F42.6°F52.9°F
April 350.5°F48.4°F42.8°F51.4°F
April 450°F47.5°F42.4°F52.5°F
April 549.5°F48.4°F43.9°F52°F
April 649.6°F48.2°F43.9°F52°F
April 750°F48.6°F45.1°F51.8°F
April 854°F50°F45.3°F54.7°F
April 952.5°F49.8°F44.8°F53.8°F
April 1052°F50.2°F45.1°F53.2°F
April 1151.4°F49.5°F45.7°F53.4°F
April 1251.1°F51.3°F46.4°F53.4°F
April 1349.1°F53.8°F46.2°F55.2°F
April 1450.4°F55.2°F46.2°F55.4°F
April 1550.4°F54°F46.6°F59.9°F
Day 2025 2024 Min Max
April 1649.6°F56.1°F47.1°F56.5°F
April 1750°F55.8°F46.9°F58.8°F
April 1850.4°F57°F46.8°F59.2°F
April 1951.3°F54.9°F46.6°F58.6°F
April 2050.9°F54.5°F46.9°F58.5°F
April 2152.7°F55.9°F48.2°F58.3°F
April 2253.1°F54.9°F49.5°F57.7°F
April 2355.4°F55.6°F50.2°F57.6°F
April 2456.1°F54.9°F50.4°F59°F
April 2555.8°F54.3°F50°F59.4°F
April 2659.9°F54.7°F50.7°F59.9°F
April 2758.1°F54.5°F51.4°F58.1°F
April 2857.2°F55.4°F52°F58.1°F
April 2957.9°F56.8°F51.8°F59.2°F
April 3056.8°F54.3°F51.1°F59.2°F
Slaughter Beach water temp chart in April

Average water temperature in Slaughter Beach in April over a decade

20162017201820192020
51.3°F52°F48.2°F52.7°F51.4°F
20212022202320242025
52.7°F51.6°F55.4°F52.7°F52.7°F

Slaughter Beach sea state in April

Chart comparing the height of waves in Slaughter Beach 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 Slaughter Beach in April

Slaughter Beach 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
Delaware Bay51.4°F41.9°F59.7°F
Bowers51.8°F42.1°F61°F
Cape Henlopen49.8°F41°F58.1°F
Cape May Point49.5°F40.8°F57.9°F
Lower Township49.8°F41°F58.1°F
Dover52°F42.1°F61.9°F
Towers Beach49.5°F40.8°F57.9°F
Rehoboth Bay49.8°F41.2°F58.1°F
Villas50.7°F41.5°F61.5°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 Slaughter Beach 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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