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Water temperature in Charleston (OR) in May

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Is it warm enough to swim in Charleston in May? Average water temperature in Charleston in May is 52.2°F and therefore is not suitable for comfortable swimming. The warmest sea in Charleston in May is 55.9°F, and the coldest is 47.3°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Charleston

Changes water temperature in Charleston in May 2025, 2024

To get an accurate forecast for the water temperature in Charleston for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Charleston, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of May.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
May 151.1°F52.2°F48.9°F54.3°F
May 251.1°F52.3°F49.5°F55°F
May 350.4°F52.3°F48.9°F55.4°F
May 449.6°F52.2°F48.7°F54.9°F
May 549.1°F52.2°F49.1°F54°F
May 649.6°F52.3°F49.3°F53.4°F
May 748.6°F52.7°F48.6°F53.8°F
May 850.2°F52.5°F49.3°F53.6°F
May 949.5°F51.6°F49.1°F54.3°F
May 1049.8°F50.9°F49.6°F54.3°F
May 1150°F51.8°F49.6°F54°F
May 1250.7°F52°F49.8°F54.1°F
May 1350.7°F51.4°F49.6°F55.2°F
May 1451.8°F50.7°F49.8°F54.3°F
May 1552°F50.2°F48.7°F54.9°F
Day 2025 2024 Min Max
May 1652.2°F48.6°F48.6°F55°F
May 1752.2°F48.4°F47.3°F55.4°F
May 1852.2°F47.8°F47.8°F55.4°F
May 1952.2°F48°F48°F55.2°F
May 2053.8°F47.8°F47.8°F55.6°F
May 2153.8°F47.8°F47.8°F55°F
May 2253.6°F48.7°F48.7°F55.6°F
May 2353.2°F49.3°F49.3°F55.4°F
May 2452.7°F50°F50°F54.7°F
May 2552.9°F51.4°F50°F54.9°F
May 2653.1°F51.1°F50.4°F54.9°F
May 2753.6°F52.5°F51.4°F55.6°F
May 2853.4°F51.8°F50.7°F55.9°F
May 2953.6°F52.3°F49.3°F55.6°F
May 3053.2°F52.5°F49.3°F54.1°F
May 3152.9°F51.4°F48.9°F54.9°F
Charleston water temp chart in May

Average water temperature in Charleston in May over a decade

20162017201820192020
54°F53.1°F52.7°F51.3°F54°F
20212022202320242025
50.4°F52°F52°F50.9°F51.6°F

Charleston sea state in May

Chart comparing the height of waves in Charleston in May 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 Charleston in May

Charleston 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 May?

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

AvrMinMax
Searose Beach52.2°F46.9°F56.7°F
Yachats52.2°F47.3°F56.8°F
Cape Perpetua52.2°F47.3°F56.8°F
Waldport52.2°F47.3°F57°F
Newport52.3°F46.6°F57.7°F
Agate Beach52.3°F46.9°F57.7°F
Otter Rock52.5°F47.3°F57.6°F
Beverly Beach52.5°F47.3°F57.6°F
Depoe Bay52.5°F47.8°F57.7°F
Lincoln Beach52.7°F48.4°F57.9°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 Charleston 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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