World sea water temperatures

Water temperature in Bethany Beach (DE) in April

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Is it warm enough to swim in Bethany Beach in April? Average water temperature in Bethany Beach in April is 49.5°F and therefore is not suitable for comfortable swimming. The warmest sea in Bethany Beach in April is 58.1°F, and the coldest is 40.8°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Bethany Beach

Changes water temperature in Bethany Beach in April 2025, 2024

To get an accurate forecast for the water temperature in Bethany 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 Bethany 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 147.7°F48.6°F40.8°F49.8°F
April 248.7°F48.4°F41.5°F49.8°F
April 349.1°F48°F41.9°F49.8°F
April 450.9°F47.5°F41.9°F51.4°F
April 551.6°F47.5°F42.6°F51.6°F
April 651.6°F47.3°F43.5°F51.6°F
April 751.6°F47.7°F43.5°F51.6°F
April 850.2°F47.8°F43.5°F53.2°F
April 950°F49.1°F43.9°F52°F
April 1050°F49.6°F44.1°F51.3°F
April 1150.5°F49.1°F44.2°F52.3°F
April 1249.6°F48.7°F44.8°F51.8°F
April 1348.7°F49.1°F44.8°F53.1°F
April 1449.3°F49.6°F45.1°F52.9°F
April 1550°F51.4°F45.1°F53.2°F
Day 2025 2024 Min Max
April 1649.6°F51.6°F45.3°F54.3°F
April 1749.6°F52°F45.3°F55°F
April 1849.5°F52.5°F45.3°F54.7°F
April 1950.5°F52.2°F45°F54°F
April 2051.8°F53.6°F45°F54.7°F
April 2152.9°F52.7°F46.2°F55.4°F
April 2253.4°F52.2°F46.9°F55.2°F
April 2354.7°F52.3°F48°F56.1°F
April 2455.4°F52.2°F48.2°F55.4°F
April 2555.4°F52.2°F48.2°F55.6°F
April 2653.2°F52.2°F48.9°F55.6°F
April 2752.5°F52.7°F49.1°F56.3°F
April 2854°F52.9°F49.6°F56.8°F
April 2953.4°F55.9°F49.3°F58.1°F
April 3055.2°F54.7°F48.9°F57.9°F
Bethany Beach water temp chart in April

Average water temperature in Bethany Beach in April over a decade

20162017201820192020
50°F50.2°F46.6°F50°F50.2°F
20212022202320242025
50°F50°F52.9°F50.7°F51.3°F

Bethany Beach sea state in April

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

Bethany 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
Indian River Inlet49.6°F41°F58.3°F
Fenwick Island49.5°F41°F57.9°F
Rehoboth Bay49.8°F41.2°F58.1°F
Towers Beach49.5°F40.8°F57.9°F
Cape Henlopen49.8°F41°F58.1°F
Broadkill Beach50.5°F41.4°F58.6°F
Slaughter Beach51.1°F41.7°F59.9°F
Cape May Point49.5°F40.8°F57.9°F
Cape May48.9°F40.5°F57.2°F
Diamond Beach48.7°F40.3°F57°F

Bethany Beach photo gallery

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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 Bethany 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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