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Water temperature in Charleston (OR) in August

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Is it warm enough to swim in Charleston in August? Average water temperature in Charleston in August is 54.5°F and therefore is not suitable for comfortable swimming. The warmest sea in Charleston in August is 60.4°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 Charleston

Changes water temperature in Charleston in August 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 August.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
August 153.2°F54°F49.3°F57.6°F
August 254°F55.8°F49.5°F57.4°F
August 354°F54°F50°F56.7°F
August 452.7°F54.1°F50.7°F56.5°F
August 552.7°F55°F51.1°F56.5°F
August 654.5°F54.7°F51.3°F57.4°F
August 755.2°F53.8°F51.8°F56.7°F
August 855°F53.1°F51.1°F57°F
August 955.8°F52.7°F50.2°F57.2°F
August 1054°F53.1°F49.5°F57.4°F
August 1153.8°F52.7°F50°F57.7°F
August 1255.9°F52.7°F50.2°F57.7°F
August 1355°F52.3°F49.6°F57.9°F
August 1455.6°F52.2°F49.1°F58.8°F
August 1553.8°F52.9°F49.1°F60.4°F
Day 2025 2024 Min Max
August 1654.1°F53.4°F50.2°F59.7°F
August 1754.9°F53.2°F50.7°F59.4°F
August 1855.6°F55.2°F51.1°F59.4°F
August 1956.8°F55.9°F51.1°F59.4°F
August 2057.2°F57.4°F50.2°F59.7°F
August 2155.9°F58.8°F49.6°F59.7°F
August 2255.4°F58.8°F50°F59.7°F
August 2355°F59.4°F50.7°F59.9°F
August 2455.9°F59.4°F51.3°F59.4°F
August 2555.2°F59.2°F50.7°F59.2°F
August 2654°F60.1°F50.5°F60.1°F
August 2753.6°F60.1°F50.4°F60.1°F
August 2853.8°F59.4°F51.1°F59.4°F
August 2954.7°F58.1°F50.7°F58.3°F
August 3053.8°F57.7°F49.8°F58.3°F
August 3155.2°F57.2°F49.8°F58.5°F
Charleston water temp chart in August

Average water temperature in Charleston in August over a decade

20162017201820192020
53.2°F52.3°F53.6°F56.1°F52°F
20212022202320242025
52°F54.9°F54.3°F55.8°F54.1°F

Charleston sea state in August

Chart comparing the height of waves in Charleston in August 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 August

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 August?

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

AvrMinMax
Searose Beach55°F48.2°F61°F
Yachats55°F48.2°F61°F
Cape Perpetua55°F48.2°F61°F
Waldport55°F48.6°F60.8°F
Newport54.9°F48.4°F62.2°F
Agate Beach54.9°F47.8°F61.9°F
Otter Rock54.9°F47.7°F60.8°F
Beverly Beach54.9°F47.7°F60.8°F
Depoe Bay55°F47.7°F60.8°F
Lincoln Beach55.9°F48.6°F61.9°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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