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Water temperature in Charlestown (MD) in March

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Is it warm enough to swim in Charlestown in March? Average water temperature in Charlestown in March is 42.1°F and therefore is not suitable for comfortable swimming. The warmest sea in Charlestown in March is 53.4°F, and the coldest is 31.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Charlestown

Changes water temperature in Charlestown in March 2025, 2024

To get an accurate forecast for the water temperature in Charlestown for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Charlestown, 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 140.3°F42.6°F32.2°F43.9°F
March 237.4°F43.3°F32.2°F46.4°F
March 337.9°F45.5°F32°F45.5°F
March 441.7°F44.8°F32°F44.8°F
March 541.5°F44.1°F32.4°F45.5°F
March 640.8°F43.5°F31.5°F45.3°F
March 741.5°F47.5°F32.4°F47.5°F
March 842.3°F47.1°F32.7°F47.1°F
March 942.6°F46.8°F33.4°F46.8°F
March 1041.9°F47.7°F33.8°F47.7°F
March 1144.8°F46.2°F34.7°F46.2°F
March 1242.4°F47.5°F35.4°F47.5°F
March 1345.3°F47.5°F36°F47.5°F
March 1444.8°F51.3°F36.5°F51.3°F
March 1538.7°F49.8°F36.3°F49.8°F
Day 2025 2024 Min Max
March 1642.4°F48.6°F36.5°F49.3°F
March 1746.9°F50°F37.6°F50°F
March 1846.4°F50.9°F36.7°F50.9°F
March 1948°F50°F37°F50.5°F
March 2047.7°F49.1°F37.9°F50°F
March 2148.2°F48.2°F38.3°F50.5°F
March 2249.1°F47.8°F38.5°F51.4°F
March 2349.3°F46.4°F38.8°F52.2°F
March 2448.4°F47.5°F38.1°F52.5°F
March 2551.8°F47.1°F38.3°F52.3°F
March 2650.9°F45.9°F37°F53.4°F
March 2749.8°F46°F37.8°F51.3°F
March 2848.9°F46.4°F38.3°F51.4°F
March 2951.8°F47.5°F39°F52°F
March 3050.2°F48°F40.3°F53.1°F
March 3151.6°F47.8°F42.3°F52.7°F
Charlestown water temp chart in March

Average water temperature in Charlestown in March over a decade

20162017201820192020
44.4°F42.4°F41.7°F41.9°F46.8°F
20212022202320242025
44.2°F44.4°F45.1°F47.1°F45.3°F

Charlestown sea state in March

Chart comparing the height of waves in Charlestown 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 Charlestown in March

Charlestown 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
Sandy Cove42.1°F31.5°F53.4°F
North East42.3°F31.3°F53.6°F
White Crystal Beach42.3°F31.3°F52.7°F
Havre De Grace42.3°F31.3°F54.1°F
Delaware City42.6°F32°F53.2°F
Carneys Point Township42.3°F32°F52.7°F
Essex43.3°F31.1°F56.1°F
Edgemere43.3°F31.1°F56.5°F
Rock Hall43.7°F31.5°F56.1°F
Baltimore43.5°F31.3°F56.3°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 Charlestown 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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