Average monthly water temperature in Philadelphia, the United States of America
On this page you find the mean water temperature over the year in Philadelphia (Pennsylvania), the United States of America. Get insights into the water temperature fluctuations and discover what they mean for visitors.
In Philadelphia, the water undergoes seasonal changes. The warmest month is August, with an average water temperature of 25°C (77°F).
The coldest water temperature month, February, has an average temperature of 5°C (41°F). It may not be the ideal time for a swim.
Philadelphia Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Philadelphia - and find the best time to visit.
Philadelphia 3-Day Forecast
Temperature Rainfall Sunshine Humidity Water Temp
See the full Philadelphia climate overview or explore weather in the United States of America.
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