World sea water temperatures

Water temperature in Onslow Beach (NC) in March

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Is it warm enough to swim in Onslow Beach in March? Average water temperature in Onslow Beach in March is 57.9°F and therefore is not suitable for comfortable swimming. The warmest sea in Onslow Beach in March is 67.1°F, and the coldest is 49.1°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Onslow Beach

Changes water temperature in Onslow Beach in March 2025, 2024

To get an accurate forecast for the water temperature in Onslow 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 Onslow Beach, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of March.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
March 150.4°F55.6°F50.4°F62.4°F
March 249.1°F55.8°F49.1°F63.9°F
March 350.7°F53.8°F50.7°F62.6°F
March 450.5°F54.1°F50.5°F61.7°F
March 551.6°F54.7°F51.6°F62.8°F
March 650.5°F57.6°F50.5°F62.8°F
March 751.8°F59.2°F51.8°F63.3°F
March 851.4°F57.7°F51.4°F64°F
March 951.6°F57.7°F51.6°F64°F
March 1052.5°F56.8°F52.2°F64.8°F
March 1151.8°F56.8°F51.8°F64.2°F
March 1253.1°F57.2°F52.7°F63.7°F
March 1353.8°F57°F53.1°F64°F
March 1453.4°F57.9°F52.5°F63.9°F
March 1554.5°F58.3°F52.9°F62.8°F
Day 2025 2024 Min Max
March 1655.4°F58.6°F53.2°F63.9°F
March 1755.9°F58.1°F53.6°F64°F
March 1859°F59.2°F53.8°F64.8°F
March 1959°F57.2°F54.7°F65.7°F
March 2059.2°F58.1°F54.9°F65.5°F
March 2157.6°F57.7°F54°F66.2°F
March 2256.7°F57°F54°F66.7°F
March 2357.4°F58.6°F53.4°F67.1°F
March 2457.4°F57.9°F53.4°F66.9°F
March 2558.6°F57.2°F53.2°F66.4°F
March 2657.9°F56.8°F52.7°F65.5°F
March 2757.7°F57.2°F52°F65.3°F
March 2859.2°F57.9°F51.6°F64.6°F
March 2957.9°F58.1°F52.3°F65.1°F
March 3061.5°F58.3°F52.5°F65.3°F
March 3161.7°F59.2°F52.5°F65.3°F
Onslow Beach water temp chart in March

Average water temperature in Onslow Beach in March over a decade

20162017201820192020
59.9°F58.6°F54.5°F57.7°F57°F
20212022202320242025
56.8°F57.4°F57.9°F57.4°F55°F

Onslow Beach sea state in March

Chart comparing the height of waves in Onslow Beach in March 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 Onslow Beach in March

Onslow 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 March?

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

AvrMinMax
Jacksonville57.6°F48.7°F67.1°F
North Topsail Beach57.7°F48.9°F66.7°F
Hammocks Beach58.3°F49.6°F67.5°F
Ocean City Beach57.9°F49.8°F66.6°F
Swansboro58.3°F49.1°F67.6°F
Cape Carteret58.5°F49.6°F67.6°F
Cedar Point58.5°F49.6°F67.6°F
Surf City57.7°F49.5°F66.4°F
Broad Creek58.6°F50.9°F67.6°F
Emerald Isle58.6°F50.9°F67.6°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 Onslow 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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