World sea water temperatures

Water temperature in Hewlett Harbor in April

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Is it warm enough to swim in Hewlett Harbor in April? Average water temperature in Hewlett Harbor in April is 46.6°F and therefore is not suitable for comfortable swimming. The warmest sea in Hewlett Harbor in April is 53.8°F, and the coldest is 39.4°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Hewlett Harbor

Changes water temperature in Hewlett Harbor in April 2025, 2024

To get an accurate forecast for the water temperature in Hewlett Harbor for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Hewlett Harbor, 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 145.1°F44.2°F39.4°F47.3°F
April 245°F45.3°F39.7°F47.8°F
April 345°F44.8°F40.1°F47.7°F
April 445°F45.3°F40.5°F48.7°F
April 544.4°F44.2°F40.8°F48.6°F
April 646°F44.8°F41.2°F47.8°F
April 745.3°F44.4°F41°F48.4°F
April 846.2°F44.8°F41°F49.3°F
April 945.9°F45.5°F40.6°F48.6°F
April 1045.1°F45.5°F41°F48.7°F
April 1144.8°F45.5°F41.5°F48.9°F
April 1244.6°F46.8°F41.9°F49.3°F
April 1345.1°F48.2°F41.5°F51.6°F
April 1444.6°F47.8°F41.2°F53.2°F
April 1546.2°F50°F41.5°F53.6°F
Day 2025 2024 Min Max
April 1645.7°F50.4°F41.5°F52.9°F
April 1745.3°F50.4°F41.9°F53.6°F
April 1845.7°F49.3°F42.1°F53.4°F
April 1945.3°F47.7°F42.4°F53.2°F
April 2045.5°F48.6°F42.8°F53.2°F
April 2144.6°F48.9°F43.5°F53.8°F
April 2247.1°F48.7°F44.4°F53.8°F
April 2350.5°F48.7°F45°F52.5°F
April 2451.8°F50.4°F45°F52°F
April 2552.9°F48.7°F45.1°F52.9°F
April 2650.7°F50.2°F46.6°F52.5°F
April 2749.6°F49.1°F46.9°F52.5°F
April 2849.1°F49.6°F47.7°F52.7°F
April 2949.8°F51.3°F47.5°F52.7°F
April 3050.5°F51.6°F46.9°F52.9°F
Hewlett Harbor water temp chart in April

Average water temperature in Hewlett Harbor in April over a decade

20162017201820192020
48.2°F46.8°F44.4°F47.1°F46.9°F
20212022202320242025
47.7°F46.4°F49.8°F47.7°F46.8°F

Hewlett Harbor sea state in April

Chart comparing the height of waves in Hewlett Harbor 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 Hewlett Harbor in April

Hewlett Harbor 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
New York City47.5°F40.3°F54°F
Island Park46.6°F39.2°F53.8°F
Jamaica46.8°F39.4°F54°F
Lido Beach46.6°F39.2°F53.8°F
Far Rockaway46.6°F39.2°F53.8°F
Atlantic Beach46.6°F39.2°F53.8°F
Point Lookout46.4°F39°F53.6°F
Long Beach46.4°F39°F53.8°F
Rockaway Park46.8°F39.4°F54°F
Belle Harbor46.8°F39.4°F54°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 Hewlett Harbor 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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