Water Temperature of the Delaware River in Philadelphia, PA

Current Water Temperature

75.2°F

Measurement Time: Thursday, September 4, 2025, 6:30 AM EDT

Temperature Locations

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Local Points of Interest

Fort Mifflin; Philadelphia International Airport; Red Bank, NJ

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Delaware River

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

Elevation Above Sea Level: 0 feet / 0 meters

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

75.9°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 64%
Feels Like: 78.5°F
Wind: S 11.6 mph
Wind Gusts: 13.4 mph
Pressure: 29.89 in
Precipitation: 0 in
Cloud Cover: 50%
Visibility: 9 mi
UV Index: 5.2

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 87°F
L: 62°F
Heavy rain
Fri
H: 91°F
L: 66°F
Patchy rain nearby
Sat
H: 91°F
L: 72°F
Moderate rain
Sun
H: 77°F
L: 60°F
Sunny
Mon
H: 73°F
L: 58°F

Air Quality

AQI: 2 - Moderate
PM2.5: 14.06 μg/m3
PM10: 14.43 μg/m3
Carbon Monoxide: 327.45 μg/m3
Nitrogen Dioxide: 4.81 μg/m3
Sulphur Dioxide: 7.59 μg/m3
Ozone: 144 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:00 PM
Sunset: 7:27 PM
Daylight: 12 hrs 55 mins
Moonrise: 6:02 PM
Moon Transit: 10:52 PM
Moonset: 2:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

11:58 AM - 2:28 PM
12:00 AM - 12:00 AM

Minor Periods

5:32 PM - 7:02 PM
2:09 AM - 3:39 AM

Action Rating: 3 out of 5

Coastal Flood Advisory issued September 4 at 5:19AM EDT until September 4 at 10:00AM EDT by NWS Baltimore MD/Washington DC

Effective: Thu September 4, 2025, 5:19 AM
Expires: Thu September 4, 2025, 10:00 AM

* WHAT...Up to one half foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE...Shoreline in Southeast Harford County. * WHEN...Until 10 AM EDT this morning, especially around the time of high tide. * IMPACTS...At 4.0 feet, water begins to go over the bulkhead at the Havre de Grace Yacht Basin in multiple locations. * ADDITIONAL DETAILS...Tides one and a half to two feet above normal. The next high tide at Havre de Grace is at 7:34 AM.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Thursday, September 4, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 72.8°F
Average Humidity: 72%
Chance of Rain: 80%
Wind: 15.4 mph
UV Index: 1.5

Air Quality

AQI: 1 - Good
PM2.5: 12.85 μg/m3
PM10: 14.2 μg/m3
Carbon Monoxide: 340.7 μg/m3
Nitrogen Dioxide: 20.94 μg/m3
Sulphur Dioxide: 6.7 μg/m3
Ozone: 89.6 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:00 PM
Sunset: 7:27 PM
Daylight: 12 hrs 55 mins
Moonrise: 6:02 PM
Moon Transit: 10:52 PM
Moonset: 2:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

11:58 AM - 2:28 PM
12:00 AM - 12:00 AM

Minor Periods

5:32 PM - 7:02 PM
2:09 AM - 3:39 AM

Action Rating: 3 out of 5

Friday, September 5, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 76.9°F
Average Humidity: 75%
Chance of Rain: 86%
Wind: 13.6 mph
UV Index: 1.7

Air Quality

AQI: 1 - Good
PM2.5: 14.56 μg/m3
PM10: 14.87 μg/m3
Carbon Monoxide: 353.94 μg/m3
Nitrogen Dioxide: 15.5 μg/m3
Sulphur Dioxide: 6.96 μg/m3
Ozone: 112.6 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:00 PM
Sunset: 7:25 PM
Daylight: 12 hrs 52 mins
Moonrise: 6:34 PM
Moon Transit: 11:43 PM
Moonset: 3:50 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 PM
12:00 AM - 12:00 AM

Minor Periods

6:04 PM - 7:34 PM
3:20 AM - 4:50 AM

Action Rating: 3 out of 5

Saturday, September 6, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 80.6°F
Average Humidity: 71%
Chance of Rain: 82%
Wind: 11.6 mph
UV Index: 1.5

Air Quality

AQI: 2 - Moderate
PM2.5: 15.72 μg/m3
PM10: 16.04 μg/m3
Carbon Monoxide: 353.79 μg/m3
Nitrogen Dioxide: 18.09 μg/m3
Sulphur Dioxide: 7.67 μg/m3
Ozone: 108 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:00 PM
Sunset: 7:23 PM
Daylight: 12 hrs 49 mins
Moonrise: 7:00 PM
Moon Transit: 12:00 AM
Moonset: 5:02 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:40 PM - 4:10 PM

Minor Periods

6:30 PM - 8:00 PM
4:32 AM - 6:02 AM

Action Rating: 3 out of 5

Sunday, September 7, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 68.3°F
Average Humidity: 70%
Chance of Rain: 89%
Wind: 9.6 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 13.97 μg/m3
PM10: 14.13 μg/m3
Carbon Monoxide: 451.33 μg/m3
Nitrogen Dioxide: 23.01 μg/m3
Sulphur Dioxide: 9.07 μg/m3
Ozone: 74.92 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:58 AM
Sunset: 7:22 PM
Daylight: 12 hrs 47 mins
Moonrise: 7:25 PM
Moon Transit: 12:32 AM
Moonset: 6:15 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:02 AM - 2:32 AM
2:28 PM - 4:58 PM

Minor Periods

6:55 PM - 8:25 PM
5:45 AM - 7:15 AM

Action Rating: 4 out of 5

Monday, September 8, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 65.9°F
Average Humidity: 45%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 0

Air Quality

AQI: 2 - Moderate
PM2.5: 17.89 μg/m3
PM10: 17.95 μg/m3
Carbon Monoxide: 493.52 μg/m3
Nitrogen Dioxide: 39.82 μg/m3
Sulphur Dioxide: 11.14 μg/m3
Ozone: 45.38 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 12:58 AM
Sunset: 7:20 PM
Daylight: 12 hrs 44 mins
Moonrise: 7:49 PM
Moon Transit: 3:28 PM
Moonset: 7:28 AM
Moon Phase: Full
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

2:58 PM - 5:28 PM
2:58 PM - 5:28 PM

Minor Periods

7:19 PM - 8:49 PM
6:58 AM - 8:28 AM

Action Rating: 5 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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