Water Temperature of the Delaware River in Philadelphia, PA
Current Water Temperature
Measurement Time: Friday, July 25, 2025, 5:30 PM 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: 72%
Feels Like: 87.9°F
Wind: E 2.9 mph
Wind Gusts: 4.7 mph
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast

Fri
H: 103°F
L: 72°F

Sat
H: 89°F
L: 73°F

Sun
H: 83°F
L: 74°F

Mon
H: 99°F
L: 74°F

Tue
H: 97°F
L: 75°F
Air Quality
Nitrogen Dioxide: 55.32 μg/m3
Sulphur Dioxide: 10.92 μg/m3
Ozone: 47 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:21 PM
Daylight: 14 hrs 28 mins
Moon Transit: 2:00 PM
Moonset: 9:15 PM
Moon Phase: New
Moon Illumination: 3.1%
Best Times for Fishing or Hunting
Major Periods
3:06 AM - 5:36 AM1:30 PM - 4:00 PM
Minor Periods
8:45 PM - 10:15 PM6:02 AM - 7:32 AM
Action Rating: 6 out of 5
Air Quality Alert issued July 24 at 3:45PM EDT by NWS Mount Holly NJ
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Thu July 24, 2025, 3:45 PM
Expires: Sat July 26, 2025, 12:00 AM
The New Jersey Department of Environmental Protection has issued a code orange air quality alert Friday 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 July 24 at 3:45PM EDT by NWS Mount Holly NJ
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Thu July 24, 2025, 3:45 PM
Expires: Sat July 26, 2025, 12:00 AM
The New Jersey Department of Environmental Protection has issued a code orange air quality alert Friday 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/
Severe Thunderstorm Watch issued July 25 at 1:41PM EDT until July 25 at 9:00PM EDT by NWS Mount Holly NJ
Effective: Fri July 25, 2025, 1:41 PM
Expires: Fri July 25, 2025, 9:00 PM
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 542 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN DELAWARE THIS WATCH INCLUDES 1 COUNTY IN NORTHERN DELAWARE NEW CASTLE IN NEW JERSEY THIS WATCH INCLUDES 15 COUNTIES IN CENTRAL NEW JERSEY MERCER MONMOUTH IN NORTHERN NEW JERSEY HUNTERDON MIDDLESEX MORRIS SOMERSET SUSSEX WARREN IN SOUTHERN NEW JERSEY ATLANTIC BURLINGTON CAMDEN CUMBERLAND GLOUCESTER OCEAN SALEM IN PENNSYLVANIA THIS WATCH INCLUDES 10 COUNTIES IN EAST CENTRAL PENNSYLVANIA BERKS LEHIGH NORTHAMPTON IN NORTHEAST PENNSYLVANIA CARBON MONROE IN SOUTHEAST PENNSYLVANIA BUCKS CHESTER DELAWARE MONTGOMERY PHILADELPHIA THIS INCLUDES THE CITIES OF ALLENTOWN, ATLANTIC CITY, BETHLEHEM, BLAIRSTOWN, CAMDEN, CHERRY HILL, DEPTFORD, DOYLESTOWN, EAST BRUNSWICK, EASTON, EDISON, FLEMINGTON, FREEHOLD, GLASSBORO, HAMMONTON, JIM THORPE, MEDIA, MILLVILLE, MOORESTOWN, MORRISTOWN, MOUNT HOLLY, NEW BRUNSWICK, NEWTON, NORRISTOWN, NORTH BRUNSWICK TOWNSHIP, PENNSVILLE, PERTH AMBOY, PHILADELPHIA, READING, SAYREVILLE, SOMERSET, STROUDSBURG, TOMS RIVER, TRENTON, WEST CHESTER, AND WILMINGTON.
Extreme Heat Warning issued July 25 at 12:53PM EDT until July 25 at 9:00PM EDT by NWS Mount Holly NJ
Effective: Fri July 25, 2025, 12:53 PM
Expires: Fri July 25, 2025, 9:00 PM
* WHAT...Dangerously hot conditions with heat index values up to 107 degrees expected. * WHERE...Portions of northern Delaware, central, northern, and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 9 PM EDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Monitor the latest forecasts and warnings for updates.
Severe Thunderstorm Watch issued July 25 at 7:20PM EDT until July 25 at 9:00PM EDT by NWS Mount Holly NJ
Effective: Fri July 25, 2025, 7:20 PM
Expires: Fri July 25, 2025, 9:00 PM
SEVERE THUNDERSTORM WATCH 542 REMAINS VALID UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN DELAWARE THIS WATCH INCLUDES 1 COUNTY IN NORTHERN DELAWARE NEW CASTLE IN NEW JERSEY THIS WATCH INCLUDES 7 COUNTIES IN SOUTHERN NEW JERSEY ATLANTIC BURLINGTON CAMDEN CUMBERLAND GLOUCESTER OCEAN SALEM IN PENNSYLVANIA THIS WATCH INCLUDES 5 COUNTIES IN EAST CENTRAL PENNSYLVANIA BERKS IN SOUTHEAST PENNSYLVANIA CHESTER DELAWARE MONTGOMERY PHILADELPHIA THIS INCLUDES THE CITIES OF ATLANTIC CITY, CAMDEN, CHERRY HILL, DEPTFORD, GLASSBORO, HAMMONTON, MEDIA, MILLVILLE, MOORESTOWN, MOUNT HOLLY, NORRISTOWN, PENNSVILLE, PHILADELPHIA, READING, TOMS RIVER, WEST CHESTER, AND WILMINGTON.
Weather Forecast
Average Temperature: 85.6°F
Average Humidity: 68%
Wind: 11.9 mph
UV Index: 2.5
Air Quality
Nitrogen Dioxide: 18.39 μg/m3
Sulphur Dioxide: 10.12 μg/m3
Ozone: 121.64 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:21 PM
Daylight: 14 hrs 28 mins
Moon Transit: 2:00 PM
Moonset: 9:15 PM
Moon Phase: New
Moon Illumination: 3.1%
Best Times for Fishing or Hunting
Major Periods
3:06 AM - 5:36 AM1:30 PM - 4:00 PM
Minor Periods
8:45 PM - 10:15 PM6:02 AM - 7:32 AM
Action Rating: 6 out of 5
Weather Forecast
Average Temperature: 81.8°F
Average Humidity: 69%
Wind: 9.8 mph
UV Index: 2.2
Air Quality
Nitrogen Dioxide: 32.44 μg/m3
Sulphur Dioxide: 8.2 μg/m3
Ozone: 95.24 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:20 PM
Daylight: 14 hrs 26 mins
Moon Transit: 2:48 PM
Moonset: 9:41 PM
Moon Phase: New
Moon Illumination: 0.7%
Best Times for Fishing or Hunting
Major Periods
3:57 AM - 6:27 AM2:18 PM - 4:48 PM
Minor Periods
9:11 PM - 10:41 PM7:13 AM - 8:43 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 77.7°F
Average Humidity: 84%
Wind: 8.7 mph
UV Index: 1.4
Air Quality
Nitrogen Dioxide: 23.11 μg/m3
Sulphur Dioxide: 7.06 μg/m3
Ozone: 102.6 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:19 PM
Daylight: 14 hrs 24 mins
Moon Transit: 3:33 PM
Moonset: 10:04 PM
Moon Phase: New
Moon Illumination: 3.8%
Best Times for Fishing or Hunting
Major Periods
4:43 AM - 7:13 AM3:03 PM - 5:33 PM
Minor Periods
9:34 PM - 11:04 PM8:21 AM - 9:51 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 85.2°F
Average Humidity: 72%
Wind: 8.7 mph
UV Index: 2.5
Air Quality
Nitrogen Dioxide: 25.78 μg/m3
Sulphur Dioxide: 7 μg/m3
Ozone: 116 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:18 PM
Daylight: 14 hrs 22 mins
Moon Transit: 4:14 PM
Moonset: 10:24 PM
Moon Phase: Waxing Crescent
Moon Illumination: 9.3%
Best Times for Fishing or Hunting
Major Periods
5:26 AM - 7:56 AM3:44 PM - 6:14 PM
Minor Periods
9:54 PM - 11:24 PM9:25 AM - 10:55 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 85.9°F
Average Humidity: 50%
Wind: 8.9 mph
UV Index: 2.5
Air Quality
Nitrogen Dioxide: 30.28 μg/m3
Sulphur Dioxide: 8.97 μg/m3
Ozone: 99.69 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:17 PM
Daylight: 14 hrs 20 mins
Moon Transit: 4:55 PM
Moonset: 10:44 PM
Moon Phase: Waxing Crescent
Moon Illumination: 16.9%
Best Times for Fishing or Hunting
Major Periods
6:07 AM - 8:37 AM4:25 PM - 6:55 PM
Minor Periods
10:14 PM - 11:44 PM10:27 AM - 11:57 AM
Action Rating: 3 out of 5