Water Temperature of the Delaware River in Philadelphia, PA

Current Water Temperature

76.6°F

Measurement Time: Thursday, June 18, 2026, 11:30 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

91°F
Partly cloudy
Partly cloudy
93.1°F
105.9°F
44%
WSW 19.7 mph
22.6 mph
97.3°F
69.4°F
0 in
75%
9 mi
1001 mbar
7.8

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 99°F
L: 70°F
Patchy rain nearby
Fri
H: 82°F
L: 66°F
Sunny
Sat
H: 81°F
L: 62°F
Sunny
Sun
H: 84°F
L: 61°F
Moderate rain
Mon
H: 69°F
L: 63°F

Air Quality

AQI: 1 - Good
PM2.5: 4.7 μg/m3
PM10: 4.9 μg/m3
Carbon Monoxide: 133 μg/m3
Nitrogen Dioxide: 2.2 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 121 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 1:02 PM
Sunset: 8:32 PM
Daylight: 15 hrs 1 mins
Moonrise: 9:25 AM
Moon Transit: 4:41 PM
Moonset: 12:13 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

5:47 AM - 8:17 AM
4:11 PM - 6:41 PM

Minor Periods

8:55 AM - 10:25 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Small Craft Advisory issued June 18 at 2:07AM EDT until June 19 at 12:00AM EDT by NWS Mount Holly NJ

Effective: Thu June 18, 2026, 2:07 AM
Expires: Thu June 18, 2026, 5:00 PM

* WHAT...Southwest winds 10 to 20 kt with gusts up to 30 kt and choppy waters expected. * WHERE...Delaware Bay waters north of East Point NJ to Slaughter Beach DE and Delaware Bay waters south of East Point NJ to Slaughter Beach DE. * WHEN...From 6 AM this morning to midnight EDT tonight. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Brief gale force wind gusts near 35 kt are possible across Delaware Bay during the afternoon hours. Scattered thunderstorms could also produce brief gale force wind gusts during the afternoon and evening hours.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Thursday, June 18, 2026

Weather Forecast

Patchy rain nearby
99°F
70°F
81.7°F
62%
0.04 in
36%
0%
19.7 mph
9.9


Air Quality

AQI: 1 - Good
PM2.5: 6.92 μg/m3
PM10: 7.43 μg/m3
Carbon Monoxide: 136.96 μg/m3
Nitrogen Dioxide: 5.48 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 102.79 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 1:02 PM
Sunset: 8:32 PM
Daylight: 15 hrs 1 mins
Moonrise: 9:25 AM
Moon Transit: 4:41 PM
Moonset: 12:13 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

5:47 AM - 8:17 AM
4:11 PM - 6:41 PM

Minor Periods

8:55 AM - 10:25 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Friday, June 19, 2026

Weather Forecast

Patchy rain nearby
81.6°F
66.1°F
74.1°F
47%
0 in
17%
0%
13.4 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 4.85 μg/m3
PM10: 4.99 μg/m3
Carbon Monoxide: 133.17 μg/m3
Nitrogen Dioxide: 6.2 μg/m3
Sulphur Dioxide: 1.78 μg/m3
Ozone: 89.42 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 1:02 PM
Sunset: 8:33 PM
Daylight: 15 hrs 1 mins
Moonrise: 10:39 AM
Moon Transit: 5:31 PM
Moonset: 12:45 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

6:39 AM - 9:09 AM
5:01 PM - 7:31 PM

Minor Periods

10:09 AM - 11:39 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, June 20, 2026

Weather Forecast

Sunny
80.8°F
61.8°F
71.3°F
46%
0 in
2%
0%
13.6 mph
9.4


Air Quality

AQI: 1 - Good
PM2.5: 3.98 μg/m3
PM10: 4.06 μg/m3
Carbon Monoxide: 123.21 μg/m3
Nitrogen Dioxide: 4.77 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 73.96 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 1:02 PM
Sunset: 8:33 PM
Daylight: 15 hrs 1 mins
Moonrise: 11:48 AM
Moon Transit: 6:17 PM
Moonset: 12:11 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

7:26 AM - 9:56 AM
5:47 PM - 8:17 PM

Minor Periods

11:18 AM - 12:48 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, June 21, 2026

Weather Forecast

Sunny
84°F
60.5°F
72.7°F
47%
0 in
2%
0%
11.9 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 6.86 μg/m3
PM10: 7.53 μg/m3
Carbon Monoxide: 132.73 μg/m3
Nitrogen Dioxide: 7.32 μg/m3
Sulphur Dioxide: 2.04 μg/m3
Ozone: 82.96 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 1:02 PM
Sunset: 8:33 PM
Daylight: 15 hrs 1 mins
Moonrise: 12:55 AM
Moon Transit: 7:00 PM
Moonset: 12:34 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

8:10 AM - 10:40 AM
6:30 PM - 9:00 PM

Minor Periods

12:25 AM - 1:55 PM
12:04 AM - 1:34 AM

Action Rating: 3 out of 5

Monday, June 22, 2026

Weather Forecast

Moderate rain
69.1°F
62.7°F
66.2°F
81%
0.77 in
85%
0%
8.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 9.31 μg/m3
PM10: 10.54 μg/m3
Carbon Monoxide: 183 μg/m3
Nitrogen Dioxide: 9.76 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 77.67 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:02 PM
Sunset: 8:33 PM
Daylight: 15 hrs 1 mins
Moonrise: 1:58 PM
Moon Transit: 7:42 PM
Moonset: 12:56 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%

Best Times for Fishing or Hunting

Major Periods

8:53 AM - 11:23 AM
7:12 PM - 9:42 PM

Minor Periods

1:28 PM - 2:58 PM
12:26 AM - 1:56 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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