Water Temperature of the Delaware River in Philadelphia, PA

Current Water Temperature

54.0°F

Measurement Time: Thursday, April 9, 2026, 2:30 AM EDT

Temperature Locations

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Local Points of Interest

Fort Mifflin; Philadelphia International Airport; Red Bank, NJ

Delaware River

Station Name: Delaware River at Fort Mifflin at Philadelphia, PA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
Fort Mifflin Road
Philadelphia, PA 19153
Philadelphia County

GPS Coordinates: 39.8792798, -75.20268029

Nearby Water Temperatures

Delaware River, Philadelphia, PA (4.9 mi)
Schuylkill River, Philadelphia, PA (6.2 mi)
Wissahickon Creek, Philadelphia, PA (9.4 mi)
Delaware River, Philadelphia, PA (9.9 mi)
Delaware River, Marcus Hook, PA (11.9 mi)
Delaware River, Philadelphia, PA (15.6 mi)
Wissahickon Creek, Fort Washington, PA (16.9 mi)
Rancocas Creek, Bridgeboro, NJ (17.7 mi)
Valley Creek, Chesterbrook, PA (19.4 mi)
Christina River, Wilmington, DE (20.5 mi)
Brandywine Creek, Chadds Ford, PA (20.7 mi)
Brandywine Creek, Wilmington, DE (21.2 mi)
Delaware River, New Castle, DE (21.4 mi)
Delaware River, Burlington, PA (22.5 mi)
Red Clay Creek, Wooddale, DE (24.4 mi)

Weather for Philadelphia, Pennsylvania

Current Weather

36°F
Partly cloudy
Partly cloudy
33.1°F
38.2°F
85%
SE 3.6 mph
5.6 mph
36.5°F
34.5°F
0 in
50%
9 mi
1036 mbar
0

Five Day Weather Forecast

Overcast
Thu
H: 55°F
L: 36°F
Cloudy
Fri
H: 64°F
L: 37°F
Moderate rain
Sat
H: 63°F
L: 44°F
Sunny
Sun
H: 64°F
L: 46°F
Patchy rain nearby
Mon
H: 79°F
L: 54°F

Air Quality

AQI: 1 - Good
PM2.5: 12.05 μg/m3
PM10: 16.35 μg/m3
Carbon Monoxide: 189.85 μg/m3
Nitrogen Dioxide: 9.25 μg/m3
Sulphur Dioxide: 5.55 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:02 PM
Sunset: 7:33 PM
Daylight: 13 hrs 1 mins
Moonrise: 2:16 AM
Moon Transit: 6:40 AM
Moonset: 11:08 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:10 AM - 8:40 AM
8:38 PM - 11:08 PM

Minor Periods

10:38 AM - 12:08 AM
1:46 AM - 3:16 AM

Action Rating: 3 out of 5

Freeze Warning issued April 8 at 9:52PM EDT until April 9 at 9:00AM EDT by NWS Mount Holly NJ

Effective: Wed April 8, 2026, 9:52 PM
Expires: Thu April 9, 2026, 9:00 AM

* WHAT...Sub-freezing temperatures as low as 24 expected. * WHERE...Berks, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Western Chester, and Western Montgomery Counties. * WHEN...From midnight tonight to 9 AM EDT Thursday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.


Freeze Warning issued April 8 at 9:52PM EDT until April 9 at 9:00AM EDT by NWS Mount Holly NJ

Effective: Wed April 8, 2026, 9:52 PM
Expires: Thu April 9, 2026, 9:00 AM

* WHAT...Sub-freezing temperatures as low as 26 expected. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, and central, northern, and southern New Jersey. * WHEN...Until 9 AM EDT Thursday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.


Freeze Warning issued April 8 at 8:38PM EDT until April 9 at 9:00AM EDT by NWS Baltimore MD/Washington DC

Effective: Wed April 8, 2026, 8:38 PM
Expires: Thu April 9, 2026, 5:00 AM

* WHAT...Sub-freezing temperatures in the upper 20s to lower 30s expected. * WHERE...Portions of central, north central, northeast, and northern Maryland, central, northern, northwest, and western Virginia, and panhandle West Virginia. * WHEN...From midnight tonight to 9 AM EDT Thursday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.
Thursday, April 9, 2026

Weather Forecast

Overcast
55°F
35.8°F
43.1°F
77%
0 in
0%
0%
9.6 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 12.38 μg/m3
PM10: 15.08 μg/m3
Carbon Monoxide: 228.41 μg/m3
Nitrogen Dioxide: 18.56 μg/m3
Sulphur Dioxide: 4.99 μg/m3
Ozone: 71.64 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:02 PM
Sunset: 7:33 PM
Daylight: 13 hrs 1 mins
Moonrise: 2:16 AM
Moon Transit: 6:40 AM
Moonset: 11:08 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:10 AM - 8:40 AM
8:38 PM - 11:08 PM

Minor Periods

10:38 AM - 12:08 AM
1:46 AM - 3:16 AM

Action Rating: 3 out of 5

Friday, April 10, 2026

Weather Forecast

Cloudy
63.9°F
37°F
49.9°F
77%
0 in
0%
0%
11.2 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 13.85 μg/m3
PM10: 16.53 μg/m3
Carbon Monoxide: 214.97 μg/m3
Nitrogen Dioxide: 18.03 μg/m3
Sulphur Dioxide: 5.99 μg/m3
Ozone: 72.04 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:02 PM
Sunset: 7:34 PM
Daylight: 13 hrs 3 mins
Moonrise: 2:57 AM
Moon Transit: 7:31 AM
Moonset: 12:11 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

7:01 AM - 9:31 AM
9:28 PM - 11:58 PM

Minor Periods

11:41 AM - 1:11 PM
2:27 AM - 3:57 AM

Action Rating: 2 out of 5

Saturday, April 11, 2026

Weather Forecast

Moderate rain
62.6°F
44.2°F
54.1°F
62%
0.28 in
86%
0%
13 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 8.59 μg/m3
PM10: 8.88 μg/m3
Carbon Monoxide: 210.17 μg/m3
Nitrogen Dioxide: 13.83 μg/m3
Sulphur Dioxide: 5.15 μg/m3
Ozone: 81.12 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 1:01 PM
Sunset: 7:35 PM
Daylight: 13 hrs 6 mins
Moonrise: 3:30 AM
Moon Transit: 8:19 AM
Moonset: 1:16 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

7:49 AM - 10:19 AM
12:00 AM - 12:00 AM

Minor Periods

12:46 AM - 2:16 PM
3:00 AM - 4:30 AM

Action Rating: 2 out of 5

Sunday, April 12, 2026

Weather Forecast

Sunny
63.9°F
45.9°F
54.3°F
50%
0 in
0%
0%
12.3 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 9.36 μg/m3
PM10: 9.74 μg/m3
Carbon Monoxide: 213.82 μg/m3
Nitrogen Dioxide: 18.65 μg/m3
Sulphur Dioxide: 4.81 μg/m3
Ozone: 68.8 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:01 PM
Sunset: 7:36 PM
Daylight: 13 hrs 8 mins
Moonrise: 4:00 AM
Moon Transit: 9:07 AM
Moonset: 2:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

8:37 AM - 11:07 AM
12:00 AM - 12:00 AM

Minor Periods

1:53 PM - 3:23 PM
3:30 AM - 5:00 AM

Action Rating: 2 out of 5

Monday, April 13, 2026

Weather Forecast

Patchy rain nearby
79.2°F
54°F
62.3°F
71%
0.03 in
77%
0%
18.1 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 8.9 μg/m3
PM10: 10.63 μg/m3
Carbon Monoxide: 196.96 μg/m3
Nitrogen Dioxide: 10.43 μg/m3
Sulphur Dioxide: 3.56 μg/m3
Ozone: 88.62 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:01 PM
Sunset: 7:37 PM
Daylight: 13 hrs 11 mins
Moonrise: 4:26 AM
Moon Transit: 9:53 AM
Moonset: 3:30 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:23 AM - 11:53 AM

Minor Periods

3:00 PM - 4:30 PM
3:56 AM - 5:26 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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