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Water temperature in Philadelphia (PA) in July

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Is it warm enough to swim in Philadelphia in July? Average water temperature in Philadelphia in July is 79°F and therefore suitable for comfortable swimming. The warmest water in Philadelphia 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 Philadelphia

Changes water temperature in Philadelphia in July 2025, 2024

To get an accurate forecast for the water temperature in Philadelphia 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 178.8°F75.2°F
July 278.8°F75.2°F
July 380.6°F77°F
July 478.8°F77°F
July 580.6°F78.8°F
July 678.8°F80.6°F
July 780.6°F82.4°F
July 880.6°F84.2°F
July 980.6°F86°F
July 1080.6°F84.2°F
July 1180.6°F 
July 1280.6°F 
July 1380.6°F 
July 1480.6°F 
July 1580.6°F 
Day 2025 2024
July 1680.6°F 
July 1780.6°F 
July 1880.6°F 
July 1980.6°F82.4°F
July 2078.8°F 
July 2178.8°F80.6°F
July 2278.8°F78.8°F
July 2378.8°F78.8°F
July 2480.6°F78.8°F
July 2580.6°F78.8°F
July 2680.6°F78.8°F
July 2782.4°F78.8°F
July 2882.4°F78.8°F
July 2984.2°F78.8°F
July 3082.4°F80.6°F
July 3180.6°F80.6°F

Philadelphia 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 Philadelphia 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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