Water Temperature of the Delaware River in New Castle, DE

Current Water Temperature

81.3°F

Measurement Time: Thursday, July 10, 2025, 2:51 PM EDT

Temperature Locations

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Local Points of Interest

Delaware Memorial Bridge; Wilmington, DE; Pennsville Township, NJ

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Delaware River

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

82.9°F
Overcast
Conditions: Overcast
Humidity: 70%
Feels Like: 94°F
Wind: SSW 4.9 mph
Wind Gusts: 7 mph
Pressure: 29.94 in
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 0.4

Five Day Weather Forecast

Moderate rain
Thu
H: 83°F
L: 71°F
Fog
Fri
H: 88°F
L: 73°F
Fog
Sat
H: 85°F
L: 72°F
Patchy rain nearby
Sun
H: 89°F
L: 70°F
Heavy rain
Mon
H: 86°F
L: 72°F

Air Quality

AQI: 1 - Good
PM2.5: 16.84 μg/m3
PM10: 17.21 μg/m3
Carbon Monoxide: 442.15 μg/m3
Nitrogen Dioxide: 20.54 μg/m3
Sulphur Dioxide: 3.52 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:07 PM
Sunset: 8:32 PM
Daylight: 14 hrs 48 mins
Moonrise: 8:56 PM
Moon Transit: 12:35 AM
Moonset: 5:02 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
2:32 PM - 5:02 PM

Minor Periods

8:26 PM - 9:56 PM
4:32 AM - 6:02 AM

Action Rating: 5 out of 5

Flash Flood Warning issued July 10 at 1:49PM EDT until July 10 at 5:45PM EDT by NWS Mount Holly NJ

Effective: Thu July 10, 2025, 1:49 PM
Expires: Thu July 10, 2025, 5:45 PM

FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Central Atlantic County in southern New Jersey... Northeastern Cumberland County in southern New Jersey... * Until 545 PM EDT. * At 149 PM EDT, trained weather spotters reported heavy rain in Central Atlantic County and Northeastern Cumberland County. Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 0.5 to 1.5 inches in 1 hour. Flash flooding is already occurring. HAZARD...Life threatening flash flooding caused by heavy rain. SOURCE...Trained spotters reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets, and underpasses. * Some locations that may experience flash flooding include... Vineland, Millville, Buena, Egg Harbor City, Weymouth, Estell Manor, Port Republic, Mays Landing, Mizpah, Elwood-Magnolia, Pomona and South Vineland.

Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.


Flash Flood Warning issued July 10 at 1:49PM EDT until July 10 at 5:45PM EDT by NWS Mount Holly NJ

Effective: Thu July 10, 2025, 1:49 PM
Expires: Thu July 10, 2025, 5:45 PM

FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Central Atlantic County in southern New Jersey... Northeastern Cumberland County in southern New Jersey... * Until 545 PM EDT. * At 149 PM EDT, trained weather spotters reported heavy rain in Central Atlantic County and Northeastern Cumberland County. Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 0.5 to 1.5 inches in 1 hour. Flash flooding is already occurring. HAZARD...Life threatening flash flooding caused by heavy rain. SOURCE...Trained spotters reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets, and underpasses. * Some locations that may experience flash flooding include... Vineland, Millville, Buena, Egg Harbor City, Weymouth, Estell Manor, Port Republic, Mays Landing, Mizpah, Elwood-Magnolia, Pomona and South Vineland.

Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.
Thursday, July 10, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 76.6°F
Average Humidity: 89%
Chance of Rain: 78%
Wind: 5.4 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 13.01 μg/m3
PM10: 13.29 μg/m3
Carbon Monoxide: 430.01 μg/m3
Nitrogen Dioxide: 14.33 μg/m3
Sulphur Dioxide: 4 μg/m3
Ozone: 94.88 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:07 PM
Sunset: 8:32 PM
Daylight: 14 hrs 48 mins
Moonrise: 8:56 PM
Moon Transit: 12:35 AM
Moonset: 5:02 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
2:32 PM - 5:02 PM

Minor Periods

8:26 PM - 9:56 PM
4:32 AM - 6:02 AM

Action Rating: 5 out of 5

Friday, July 11, 2025

Weather Forecast

Conditions: Fog
Average Temperature: 78.9°F
Average Humidity: 86%
Chance of Rain: 0%
Wind: 6.3 mph
UV Index: 2.5

Air Quality

AQI: 2 - Moderate
PM2.5: 36.47 μg/m3
PM10: 37.49 μg/m3
Carbon Monoxide: 443.93 μg/m3
Nitrogen Dioxide: 16.19 μg/m3
Sulphur Dioxide: 5.3 μg/m3
Ozone: 117.72 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:07 PM
Sunset: 8:31 PM
Daylight: 14 hrs 47 mins
Moonrise: 9:34 PM
Moon Transit: 1:29 AM
Moonset: 6:08 AM
Moon Phase: Full
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:59 AM - 3:29 AM
3:26 PM - 5:56 PM

Minor Periods

9:04 PM - 10:34 PM
5:38 AM - 7:08 AM

Action Rating: 4 out of 5

Saturday, July 12, 2025

Weather Forecast

Conditions: Fog
Average Temperature: 76.5°F
Average Humidity: 88%
Chance of Rain: 0%
Wind: 7.8 mph
UV Index: 2.5

Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 57.84 μg/m3
PM10: 59.11 μg/m3
Carbon Monoxide: 473.9 μg/m3
Nitrogen Dioxide: 24.36 μg/m3
Sulphur Dioxide: 5.55 μg/m3
Ozone: 126.52 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:07 PM
Sunset: 8:31 PM
Daylight: 14 hrs 46 mins
Moonrise: 10:06 PM
Moon Transit: 2:22 AM
Moonset: 7:17 AM
Moon Phase: Full
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

1:52 AM - 4:22 AM
4:17 PM - 6:47 PM

Minor Periods

9:36 PM - 11:06 PM
6:47 AM - 8:17 AM

Action Rating: 3 out of 5

Sunday, July 13, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 75.7°F
Average Humidity: 84%
Chance of Rain: 85%
Wind: 8.5 mph
UV Index: 2.5

Air Quality

AQI: 2 - Moderate
PM2.5: 26.09 μg/m3
PM10: 27.46 μg/m3
Carbon Monoxide: 404.19 μg/m3
Nitrogen Dioxide: 13.57 μg/m3
Sulphur Dioxide: 2.35 μg/m3
Ozone: 108.08 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:07 PM
Sunset: 8:30 PM
Daylight: 14 hrs 45 mins
Moonrise: 10:33 PM
Moon Transit: 3:12 AM
Moonset: 8:28 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

2:42 AM - 5:12 AM
5:06 PM - 7:36 PM

Minor Periods

10:03 PM - 11:33 PM
7:58 AM - 9:28 AM

Action Rating: 2 out of 5

Monday, July 14, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 77.2°F
Average Humidity: 87%
Chance of Rain: 86%
Wind: 7.6 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 11.19 μg/m3
PM10: 13.58 μg/m3
Carbon Monoxide: 358.62 μg/m3
Nitrogen Dioxide: 13.55 μg/m3
Sulphur Dioxide: 3.17 μg/m3
Ozone: 63.77 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:08 PM
Sunset: 8:30 PM
Daylight: 14 hrs 43 mins
Moonrise: 10:57 PM
Moon Transit: 4:00 AM
Moonset: 9:38 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

3:30 AM - 6:00 AM
5:53 PM - 8:23 PM

Minor Periods

10:27 PM - 11:57 PM
9:08 AM - 10:38 AM

Action Rating: 4 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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