Water Temperature of the Delaware River in Philadelphia, PA
Current Water Temperature
Measurement Time: Wednesday, June 25, 2025, 12:30 AM EDT
Temperature Locations
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Local Points of Interest
Fort Mifflin; Philadelphia International Airport; Red Bank, NJSponsored Content
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

Humidity: 57%
Feels Like: 100.7°F
Wind: N 3.6 mph
Wind Gusts: 7.5 mph
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast

Wed
H: 105°F
L: 82°F

Thu
H: 82°F
L: 67°F

Fri
H: 69°F
L: 62°F

Sat
H: 92°F
L: 61°F

Sun
H: 85°F
L: 69°F
Air Quality
Nitrogen Dioxide: 31.82 μg/m3
Sulphur Dioxide: 12.95 μg/m3
Ozone: 64 μg/m3
Astronomical
Sun Transit: 1:03 PM
Sunset: 8:34 PM
Daylight: 15 hrs mins
Moon Transit: 1:21 PM
Moonset: 9:24 PM
Moon Phase: New
Moon Illumination: 1.6%
Best Times for Fishing or Hunting
Major Periods
2:23 AM - 4:53 AM12:51 AM - 3:21 PM
Minor Periods
8:54 PM - 10:24 PM4:45 AM - 6:15 AM
Action Rating: 4 out of 5
Extreme Heat Warning issued June 24 at 2:40PM EDT until June 25 at 8:00PM EDT by NWS Mount Holly NJ
Effective: Tue June 24, 2025, 2:40 PM
Expires: Wed June 25, 2025, 3:45 AM
* WHAT...Dangerously hot conditions with heat index values up to 107. * WHERE...In Delaware, New Castle County. In New Jersey, Camden, Gloucester, and Northwestern Burlington Counties. * WHEN...Until 8 PM EDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The hottest temperatures and heat indices will occur this afternoon. Low temperatures between 75 to 80 degrees and high humidity will not offer much relief from the heat tonight. Heat index values up to 106 can be expected on Wednesday.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. If you do not have air conditioning in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the heat.
Air Quality Alert issued June 24 at 3:45PM EDT by NWS Mount Holly NJ
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Tue June 24, 2025, 3:45 PM
Expires: Thu June 26, 2025, 12:00 AM
The New Jersey Department of Environmental Protection has issued a code orange air quality alert Wednesday for Southwestern New Jersey. A code orange air quality alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children...people suffering from asthma... heart disease or other lung diseases...and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles...visit http://www.state.nj.us/dep/
Air Quality Alert issued June 24 at 3:45PM EDT by NWS Mount Holly NJ
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Tue June 24, 2025, 3:45 PM
Expires: Thu June 26, 2025, 12:00 AM
The New Jersey Department of Environmental Protection has issued a code orange air quality alert Wednesday for Southwestern New Jersey. A code orange air quality alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children...people suffering from asthma... heart disease or other lung diseases...and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles...visit http://www.state.nj.us/dep/
Extreme Heat Warning issued June 24 at 2:40PM EDT until June 25 at 8:00PM EDT by NWS Mount Holly NJ
Effective: Tue June 24, 2025, 2:40 PM
Expires: Wed June 25, 2025, 3:45 AM
* WHAT...Dangerously hot conditions with heat index values up to 107. * WHERE...In Delaware, New Castle County. In New Jersey, Camden, Gloucester, and Northwestern Burlington Counties. * WHEN...Until 8 PM EDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The hottest temperatures and heat indices will occur this afternoon. Low temperatures between 75 to 80 degrees and high humidity will not offer much relief from the heat tonight. Heat index values up to 106 can be expected on Wednesday.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. If you do not have air conditioning in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the heat.
Extreme Heat Warning issued June 24 at 2:40PM EDT until June 25 at 8:00PM EDT by NWS Mount Holly NJ
Effective: Tue June 24, 2025, 2:40 PM
Expires: Wed June 25, 2025, 3:45 AM
* WHAT...Dangerously hot conditions with heat index values up to 107. * WHERE...In Delaware, New Castle County. In New Jersey, Camden, Gloucester, and Northwestern Burlington Counties. * WHEN...Until 8 PM EDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The hottest temperatures and heat indices will occur this afternoon. Low temperatures between 75 to 80 degrees and high humidity will not offer much relief from the heat tonight. Heat index values up to 106 can be expected on Wednesday.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. If you do not have air conditioning in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the heat.
Weather Forecast
Average Temperature: 92.4°F
Average Humidity: 58%
Wind: 11.6 mph
UV Index: 2.7
Air Quality
Nitrogen Dioxide: 42.13 μg/m3
Sulphur Dioxide: 11.37 μg/m3
Ozone: 95.88 μg/m3
Astronomical
Sun Transit: 1:03 PM
Sunset: 8:34 PM
Daylight: 15 hrs mins
Moon Transit: 1:21 PM
Moonset: 9:24 PM
Moon Phase: New
Moon Illumination: 1.6%
Best Times for Fishing or Hunting
Major Periods
2:23 AM - 4:53 AM12:51 AM - 3:21 PM
Minor Periods
8:54 PM - 10:24 PM4:45 AM - 6:15 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 78.6°F
Average Humidity: 76%
Wind: 11 mph
UV Index: 2.2
Air Quality
Nitrogen Dioxide: 30.35 μg/m3
Sulphur Dioxide: 9.85 μg/m3
Ozone: 90.48 μg/m3
Astronomical
Sun Transit: 1:03 PM
Sunset: 8:34 PM
Daylight: 15 hrs mins
Moon Transit: 2:23 PM
Moonset: 10:11 PM
Moon Phase: New
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
3:26 AM - 5:56 AM1:53 PM - 4:23 PM
Minor Periods
9:41 PM - 11:11 PM5:56 AM - 7:26 AM
Action Rating: 5 out of 5
Weather Forecast
Average Temperature: 67.1°F
Average Humidity: 86%
Wind: 8.9 mph
UV Index: 1.6
Air Quality
Nitrogen Dioxide: 15.67 μg/m3
Sulphur Dioxide: 4.97 μg/m3
Ozone: 84.48 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:34 PM
Daylight: 14 hrs 59 mins
Moon Transit: 3:20 PM
Moonset: 10:47 PM
Moon Phase: New
Moon Illumination: 2.0%
Best Times for Fishing or Hunting
Major Periods
4:25 AM - 6:55 AM2:50 PM - 5:20 PM
Minor Periods
10:17 PM - 11:47 PM7:10 AM - 8:40 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 76.8°F
Average Humidity: 79%
Wind: 9.4 mph
UV Index: 2.2
Air Quality
Nitrogen Dioxide: 21.5 μg/m3
Sulphur Dioxide: 6.29 μg/m3
Ozone: 59.77 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:34 PM
Daylight: 14 hrs 59 mins
Moon Transit: 4:11 PM
Moonset: 11:16 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.5%
Best Times for Fishing or Hunting
Major Periods
5:18 AM - 7:48 AM3:41 PM - 6:11 PM
Minor Periods
12:00 AM - 12:00 AM8:23 AM - 9:53 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 76.3°F
Average Humidity: 79%
Wind: 8.5 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:34 PM
Daylight: 14 hrs 59 mins
Moon Transit: 4:57 PM
Moonset: 12:16 AM
Moon Phase: Waxing Crescent
Moon Illumination: 13.1%
Best Times for Fishing or Hunting
Major Periods
6:06 AM - 8:36 AM4:27 PM - 6:57 PM
Minor Periods
9:32 AM - 11:02 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5