World sea water temperatures

Water temperature in Washington DC (DC) in July

Is it warm enough to swim in Washington DC in July? Average water temperature in Washington DC in July is 79.5°F and therefore suitable for comfortable swimming. The warmest water in Washington DC in July is 86°F, and the coldest is 73.4°F. To find out the water temperature today and in the coming days, go to Current water temperature in Washington DC

Changes water temperature in Washington DC in July 2025, 2024

To get an accurate forecast for the water temperature in Washington DC for any chosen month, compare two years within a 10 year range using the chart below.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024
July 180.6°F77°F
July 280.6°F78.8°F
July 380.6°F78.8°F
July 480.6°F78.8°F
July 580.6°F78.8°F
July 680.6°F82.4°F
July 780.6°F84.2°F
July 880.6°F86°F
July 980.6°F86°F
July 1080.6°F84.2°F
July 1182.4°F 
July 1282.4°F 
July 1380.6°F 
July 1480.6°F 
July 1582.4°F 
Day 2025 2024
July 1682.4°F 
July 1780.6°F 
July 1882.4°F 
July 1982.4°F82.4°F
July 2080.6°F 
July 2180.6°F 
July 2280.6°F78.8°F
July 2380.6°F78.8°F
July 2482.4°F78.8°F
July 2582.4°F78.8°F
July 2682.4°F78.8°F
July 2784.2°F78.8°F
July 2884.2°F78.8°F
July 2984.2°F78.8°F
July 3082.4°F80.6°F
July 3180.6°F80.6°F

Washington DC 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 July?

Want to know where the water temperature in July 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

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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 Washington DC 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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