Philadelphia water temp

This data the coastal Philadelphia water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current water temperature in Philadelphia

Water temperature in Philadelphia today is 73.4°F. Based on our historical data over a period of ten years, the warmest water in this day in Philadelphia was, like today, 73.4°F, and the coldest was recorded in 2023 at 62.6°F. Water temperature in Philadelphia is expected to drop to 63.7°F in the next 10 days. September average water temperature in Philadelphia is 70.9°F, the minimum temperature is 62.6°F, and the maximum is 80.6°F.

The swimming season in Philadelphia lasts from June to September. During those months, Philadelphia water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Philadelphia in winter reaches 39.9°F, in spring 53.4°F, in summer the average temperature rises to 76.3°F, and in autumn it is 60.6°F.

Philadelphia water temperature now

Current temperature and weather

Data in a table show Philadelphia temperature today (September 28, 2025). For more information and forecast for a few days, go to the weather forecast Philadelphia.

0-3 h	3-6 h	6-9 h	9-12 h
69.6°F	66.4°F	65.7°F	66.7°F

12-15 h	15-18 h	18-21 h	21-24 h
72.1°F	81°F	80.8°F	72.7°F

Philadelphia water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Philadelphia. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Philadelphia on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Philadelphia

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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.