Search for cities, countries, lakes and rivers
Philadelphia
Water Temperature in Philadelphia in Delaware River: Current and Forecast
On this page, you will find comprehensive information about the water temperature in Philadelphia in Delaware River, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Philadelphia
66°F
TODAY
65°F
YESTERDAY
65°F
A WEEK AGO
As of today, the minimum water temperature in Philadelphia ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Analysis, Historical Data, and Forecast of Water Temperature
Water Temperature Chart for Delaware River in Philadelphia Over the Last 30 Days
Today the water temperature in Philadelphia is higher than the same day in previous years. The water temperature range here in May is from 46°F to 70°F. The water temperature is trending upward, and it has increased both over the past 30 days and the past week.
The forecasted water temperature values for Philadelphia are presented in the table below.
The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.
Table of Daily Water Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| May 3 | 65°F | 56°F | |
| May 4 | 65°F | 56°F | |
| May 5 | 66°F | 56°F | |
| May 6 | 67°F | 56°F | |
| May 7 | 67°F | 56°F | |
| May 8 | 65°F | 56°F | |
| May 9 | 65°F | 56°F | |
| May 10 | 66°F | 56°F | |
| May 11 | 56°F | 65°F | |
| May 12 | 56°F | 65°F | |
| May 13 | 56°F | 64°F | |
| May 14 | 56°F | 64°F | |
| May 15 | 56°F | 63°F | |
| May 16 | 56°F | 63°F | |
| May 17 | 56°F | 63°F | |
| May 18 | 56°F | 62°F |
Water Temperature Ranges in Philadelphia by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 40°F | 48°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 40°F | 48°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 44°F | 52°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 41°F | 52°F | 63°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 56°F | 70°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 57°F | 65°F | 72°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 68°F | 75°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 71°F | 73°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 52°F | 64°F | 66°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 56°F | 61°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 47°F | 61°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 40°F | 46°F |
Monthly Water Temperature Histogram for Delaware River in Philadelphia
Known Beaches in the Area of Philadelphia?
Schuylkill Beach
Schuylkill Beach is a 1-stars sandy beach, located in a 5 km (3 miles) radius of Philadelphia.
Philadelphia Weather
MAY 10
45°F / 70°F
overcastrain: 53% | wind: 15 mph
MAY 11
50°F / 73°F
overcastrain: 4% | wind: 9 mph
MAY 12
50°F / 77°F
overcastrain: 1% | wind: 11 mph
MAY 13
55°F / 64°F
moderate drizzlerain: 17% | wind: 11 mph
MAY 14
61°F / 81°F
moderate drizzlerain: 42% | wind: 6 mph
Water Temperature in Philadelphia: General Trends and Swimming Opportunities
In Philadelphia, the Delaware River serves as a significant waterway, but it is not commonly used for swimming. The water temperature in the Delaware River near Philadelphia varies throughout the year. In winter, the water can be quite cold, with temperatures dropping to around 40°F (4°C), while during the summer, the river's water temperature can reach around 70°F (21°C). Despite the warmer temperatures in the summer, the river is often too cold and unpredictable for safe swimming.
Swimming in the Delaware River near Philadelphia is not recommended due to several factors. The river has strong currents and occasional tides, which can be hazardous for swimmers. The water quality can also be a concern, as the river serves as a major transportation route and industrial hub, which sometimes leads to contamination from runoff and waste. While there are designated spots along the river for recreational activities like kayaking and boating, the Delaware is not typically considered a safe or pleasant location for swimming.
For those looking to swim in Philadelphia, there are various public swimming pools, beaches, and water parks that offer much safer and more controlled environments. The city’s recreational areas, such as the Schuylkill River Trail, provide alternatives for outdoor activities, but the Delaware River itself remains unsuitable for recreational swimming due to the strong currents, lower water temperatures, and occasional water quality concerns.
Geographical Location of Philadelphia
Nearby Cities
Frequently Asked Questions About Philadelphia and its Water Temperatures
What is the current water temperature in Philadelphia?
The water temperature today in Philadelphia is 66°F (18.9°C).
What is the water temperature in Philadelphia during the summer months?
The average water temperature in Philadelphia during the summer months is typically between 65°F to 71°F (19°C to 21°C), and it can reach up to 75°F (24°C) at its warmest. However, in some years, the temperature may exceed this range.
What is the water temperature in Philadelphia in May?
The average water temperature in Philadelphia in May ranges from 46°F to 70°F (8°C to 21°C).
What is the water temperature in Philadelphia in September?
The average water temperature in Philadelphia in September is typically between 52°F to 66°F (11°C to 19°C).
Is it possible to swim in the Delaware River in Philadelphia, and what are the available options for doing so?
Yes, swimming in the Delaware River in Philadelphia is possible. Options include designated swimming areas in certain parks, such as Neshaminy State Park, or joining organized events like river swims.