Water Temperature of the Delaware River in New Castle, DE
Current Water Temperature
Measurement Time: Wednesday, September 10, 2025, 6:33 AM EDT
Temperature Locations
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Local Points of Interest
Delaware Memorial Bridge; Wilmington, DE; Pennsville Township, NJSponsored Content
Station Name: DELAWARE RIVER AT DEL MEM BRIDGE AT WILMINGTON DE
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 0 feet / 0 meters
Nearest Address:
I-295
New Castle, DE 19720
New Castle County
GPS Coordinates: 39.68927997, -75.521588
Nearby Water Temperatures
Christina River, Wilmington, DE (3.4 mi)Christina River, Newport, DE (4.9 mi)
Brandywine Creek, Wilmington, DE (6.3 mi)
White Clay Creek, Stanton, DE (6.7 mi)
Red Clay Creek, Wooddale, DE (7.9 mi)
White Clay Creek, Newark, DE (8.2 mi)
Pike Creek, Newark, DE (9.3 mi)
Chesapeake & Delaware Canal, Port Penn, DE (9.4 mi)
Delaware River, Marcus Hook, PA (10.3 mi)
Chesapeake and Delaware Canal, Delaware City, DE (10.7 mi)
Christina River, Newark, DE (11.5 mi)
White Clay Creek, Newark, DE (12.1 mi)
Brandywine Creek, Chadds Ford, PA (13.0 mi)
Delaware River, Middletown, DE (13.2 mi)
White Clay Creek, Landenberg, PA (13.8 mi)
Weather for New Castle, Delaware
Current Weather

Humidity: 73%
Feels Like: 66.9°F
Wind: NNE 10.3 mph
Wind Gusts: 14.4 mph
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0.5
Five Day Weather Forecast

Wed
H: 68°F
L: 61°F

Thu
H: 73°F
L: 62°F

Fri
H: 78°F
L: 64°F

Sat
H: 80°F
L: 60°F

Sun
H: 84°F
L: 64°F
Air Quality
Nitrogen Dioxide: 24.79 μg/m3
Sulphur Dioxide: 7.22 μg/m3
Ozone: 47 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 7:18 PM
Daylight: 12 hrs 39 mins
Moon Transit: 3:00 AM
Moonset: 10:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 86.2%
Best Times for Fishing or Hunting
Major Periods
2:30 AM - 5:00 AM4:56 PM - 7:26 PM
Minor Periods
8:14 PM - 9:44 PM9:30 AM - 11:00 AM
Action Rating: 3 out of 5
Coastal Flood Advisory issued September 10 at 6:38AM EDT until September 10 at 4:00PM EDT by NWS Mount Holly NJ
Effective: Wed September 10, 2025, 6:38 AM
Expires: Wed September 10, 2025, 4:00 PM
* WHAT...Up to one half foot of inundation above ground level in low-lying areas near shorelines and tidal waterways. * WHERE...In Delaware, New Castle. In New Jersey, Salem. * WHEN...Until 4 PM EDT this afternoon. * IMPACTS...At this level, flooding begins on the most vulnerable roads along tidal waterways. Some partial or full road closures are possible.
A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge.
Coastal Flood Advisory issued September 10 at 6:38AM EDT until September 10 at 4:00PM EDT by NWS Mount Holly NJ
Effective: Wed September 10, 2025, 6:38 AM
Expires: Wed September 10, 2025, 4:00 PM
* WHAT...Up to one half foot of inundation above ground level in low-lying areas near shorelines and tidal waterways. * WHERE...In Delaware, New Castle. In New Jersey, Salem. * WHEN...Until 4 PM EDT this afternoon. * IMPACTS...At this level, flooding begins on the most vulnerable roads along tidal waterways. Some partial or full road closures are possible.
A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge.
Coastal Flood Advisory issued September 10 at 6:38AM EDT until September 10 at 3:00PM EDT by NWS Mount Holly NJ
Effective: Wed September 10, 2025, 6:38 AM
Expires: Wed September 10, 2025, 3:00 PM
* WHAT...Up to one foot of inundation above ground level in low- lying areas near shorelines and tidal waterways. * WHERE...Cumberland, Atlantic and Cape May. * WHEN...Until 3 PM EDT this afternoon. * IMPACTS...At this level, flooding begins on the most vulnerable roads in coastal and bayside communities, and along inland tidal waterways. Some partial or full road closures are possible.
A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge.
Coastal Flood Advisory issued September 10 at 6:38AM EDT until September 10 at 3:00PM EDT by NWS Mount Holly NJ
Effective: Wed September 10, 2025, 6:38 AM
Expires: Wed September 10, 2025, 3:00 PM
* WHAT...Up to one foot of inundation above ground level in low- lying areas near shorelines and tidal waterways. * WHERE...Kent and Inland Sussex. * WHEN...Until 3 PM EDT this afternoon. * IMPACTS...At this level, flooding begins on the most vulnerable roads in coastal and bayside communities, and along inland tidal waterways. Some partial or full road closures are possible.
A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge.
Coastal Flood Advisory issued September 10 at 6:38AM EDT until September 10 at 3:00PM EDT by NWS Mount Holly NJ
Effective: Wed September 10, 2025, 6:38 AM
Expires: Wed September 10, 2025, 3:00 PM
* WHAT...Up to one foot of inundation above ground level in low- lying areas near shorelines and tidal waterways. * WHERE...Cumberland, Atlantic and Cape May. * WHEN...Until 3 PM EDT this afternoon. * IMPACTS...At this level, flooding begins on the most vulnerable roads in coastal and bayside communities, and along inland tidal waterways. Some partial or full road closures are possible.
A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge.
Weather Forecast
Average Temperature: 63.6°F
Average Humidity: 89%
Wind: 10.5 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 26.57 μg/m3
Sulphur Dioxide: 7.06 μg/m3
Ozone: 53.88 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 7:18 PM
Daylight: 12 hrs 39 mins
Moon Transit: 3:00 AM
Moonset: 10:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 86.2%
Best Times for Fishing or Hunting
Major Periods
2:30 AM - 5:00 AM4:56 PM - 7:26 PM
Minor Periods
8:14 PM - 9:44 PM9:30 AM - 11:00 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 68°F
Average Humidity: 77%
Wind: 5.4 mph
UV Index: 0.9
Air Quality
Nitrogen Dioxide: 29.56 μg/m3
Sulphur Dioxide: 8.7 μg/m3
Ozone: 62.32 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 7:16 PM
Daylight: 12 hrs 36 mins
Moon Transit: 3:53 AM
Moonset: 11:17 AM
Moon Phase: Waning Gibbous
Moon Illumination: 77.5%
Best Times for Fishing or Hunting
Major Periods
3:23 AM - 5:53 AM5:51 PM - 8:21 PM
Minor Periods
8:47 PM - 10:17 PM10:47 AM - 12:17 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 70.2°F
Average Humidity: 73%
Wind: 8.7 mph
UV Index: 1.5
Air Quality
Nitrogen Dioxide: 43.29 μg/m3
Sulphur Dioxide: 6.46 μg/m3
Ozone: 69.28 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 7:15 PM
Daylight: 12 hrs 34 mins
Moon Transit: 4:49 AM
Moonset: 12:35 AM
Moon Phase: Waning Gibbous
Moon Illumination: 67.4%
Best Times for Fishing or Hunting
Major Periods
4:19 AM - 6:49 AM6:50 PM - 9:20 PM
Minor Periods
9:27 PM - 10:57 PM12:05 AM - 1:35 PM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 69.2°F
Average Humidity: 71%
Wind: 10.7 mph
UV Index: 1.4
Air Quality
Nitrogen Dioxide: 26.74 μg/m3
Sulphur Dioxide: 4.63 μg/m3
Ozone: 76.84 μg/m3
Astronomical
Sun Transit: 12:57 AM
Sunset: 7:13 PM
Daylight: 12 hrs 31 mins
Moon Transit: 5:49 AM
Moonset: 1:50 PM
Moon Phase: Waning Gibbous
Moon Illumination: 56.4%
Best Times for Fishing or Hunting
Major Periods
5:19 AM - 7:49 AM7:51 PM - 10:21 PM
Minor Periods
10:17 PM - 11:47 PM1:20 PM - 2:50 PM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 71.5°F
Average Humidity: 67%
Wind: 8.3 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 33.04 μg/m3
Sulphur Dioxide: 3.2 μg/m3
Ozone: 55.08 μg/m3
Astronomical
Sun Transit: 12:57 AM
Sunset: 7:12 PM
Daylight: 12 hrs 29 mins
Moon Transit: 6:51 AM
Moonset: 2:58 PM
Moon Phase: Last Quarter
Moon Illumination: 45.1%
Best Times for Fishing or Hunting
Major Periods
6:21 AM - 8:51 AM8:53 PM - 11:23 PM
Minor Periods
12:00 AM - 12:00 AM2:28 PM - 3:58 PM
Action Rating: 3 out of 5