Water Temperature of the Delaware River in New Castle, DE

Current Water Temperature

31.5°F

Measurement Time: Saturday, January 31, 2026, 6:57 PM EST

Temperature Locations

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Local Points of Interest

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

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

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 mi)
Delaware River, Middletown, DE (13.2 mi)
White Clay Creek, Landenberg, PA (13.8 mi)

Weather for New Castle, Delaware

Current Weather

17.1°F
Clear
Clear
4.4°F
11.9°F
53%
NNW 11.2 mph
16.4 mph
-3.4°F
3.2°F
0 in
0%
9 mi
1016 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 24°F
L: 6°F
Sunny
Mon
H: 33°F
L: 14°F
Sunny
Tue
H: 32°F
L: 18°F
Heavy snow
Wed
H: 32°F
L: 17°F
Sunny
Thu
H: 27°F
L: 12°F

Air Quality

PM2.5: 3.25 μg/m3
PM10: 3.45 μg/m3
Carbon Monoxide: 168.85 μg/m3
Nitrogen Dioxide: 6.05 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 12:15 AM
Sunset: 5:22 PM
Daylight: 10 hrs 12 mins
Moonrise: 5:12 PM
Moon Transit: 12:00 AM
Moonset: 7:10 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:37 PM - 4:07 PM

Minor Periods

4:42 PM - 6:12 PM
6:40 AM - 8:10 AM

Action Rating: 4 out of 5

Cold Weather Advisory issued January 31 at 2:08PM EST until February 1 at 10:00AM EST by NWS Mount Holly NJ

Effective: Sat January 31, 2026, 2:08 PM
Expires: Sun February 1, 2026, 4:00 AM

* WHAT...Very cold wind chills as low as 7 below. * WHERE...Portions of central and northern Delaware, northeast Maryland, central and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 10 AM EST Sunday. * IMPACTS...The cold wind chills as low as 5 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.


Cold Weather Advisory issued January 31 at 3:12PM EST until February 1 at 1:00PM EST by NWS Baltimore MD/Washington DC

Effective: Sat January 31, 2026, 3:12 PM
Expires: Sat January 31, 2026, 11:30 PM

* WHAT...Very cold wind chills of 0 to 12 below. * WHERE...Washington DC, and portions of central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...From 10 PM this evening to 1 PM EST Sunday. * IMPACTS...The cold weather could result in hypothermia or frostbite if precautions are not taken.

Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.


Cold Weather Advisory issued January 31 at 2:08PM EST until February 1 at 10:00AM EST by NWS Mount Holly NJ

Effective: Sat January 31, 2026, 2:08 PM
Expires: Sun February 1, 2026, 4:00 AM

* WHAT...Very cold wind chills as low as 12 below. * WHERE...Portions of central, northern, and northwest New Jersey and east central and southeast Pennsylvania. * WHEN...Until 10 AM EST Sunday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.


Coastal Flood Advisory issued January 31 at 3:14PM EST until February 1 at 12:00PM EST by NWS Mount Holly NJ

Effective: Sat January 31, 2026, 3:14 PM
Expires: Sun February 1, 2026, 5:00 AM

* WHAT...Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Atlantic, Cape May, Atlantic Coastal Cape May, Coastal Atlantic and Southeastern Burlington. * WHEN...From 5 AM to noon EST Sunday. * 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. * ADDITIONAL DETAILS...Minor coastal flooding may linger near the times of high tide through Monday. The highest water levels and greatest impacts are forecast to occur during the Sunday morning high tide, when isolated Moderate coastal flood impacts are possible along the back bays. Ice from the back bays could get pushed onshore during high tide, and flood waters could freeze on roadways, further complicating impacts.

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.


Sunday, February 1, 2026

Weather Forecast

Sunny
24.3°F
6.1°F
15.3°F
68%
0 in
0%
0%
15 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 5.76 μg/m3
PM10: 6.02 μg/m3
Carbon Monoxide: 197.61 μg/m3
Nitrogen Dioxide: 10.3 μg/m3
Sulphur Dioxide: 2.76 μg/m3
Ozone: 68.88 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 12:15 AM
Sunset: 5:22 PM
Daylight: 10 hrs 12 mins
Moonrise: 5:12 PM
Moon Transit: 12:00 AM
Moonset: 7:10 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:37 PM - 4:07 PM

Minor Periods

4:42 PM - 6:12 PM
6:40 AM - 8:10 AM

Action Rating: 4 out of 5

Monday, February 2, 2026

Weather Forecast

Sunny
33.3°F
14.4°F
22.1°F
76%
0 in
0%
0%
13.4 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 6.32 μg/m3
PM10: 6.48 μg/m3
Carbon Monoxide: 198.77 μg/m3
Nitrogen Dioxide: 7.91 μg/m3
Sulphur Dioxide: 3.13 μg/m3
Ozone: 77.2 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 12:15 AM
Sunset: 5:23 PM
Daylight: 10 hrs 14 mins
Moonrise: 6:27 PM
Moon Transit: 12:34 AM
Moonset: 7:43 AM
Moon Phase: Full
Moon Illumination: 99.4%

Best Times for Fishing or Hunting

Major Periods

12:04 AM - 2:34 AM
2:30 PM - 5:00 PM

Minor Periods

5:57 PM - 7:27 PM
7:13 AM - 8:43 AM

Action Rating: 5 out of 5

Tuesday, February 3, 2026

Weather Forecast

Sunny
31.5°F
17.6°F
24.8°F
76%
0 in
0%
0%
7.4 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 12.51 μg/m3
PM10: 12.56 μg/m3
Carbon Monoxide: 265.92 μg/m3
Nitrogen Dioxide: 13.5 μg/m3
Sulphur Dioxide: 6.47 μg/m3
Ozone: 64.16 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 12:15 AM
Sunset: 5:24 PM
Daylight: 10 hrs 16 mins
Moonrise: 7:36 PM
Moon Transit: 1:24 AM
Moonset: 8:09 AM
Moon Phase: Full
Moon Illumination: 96.3%

Best Times for Fishing or Hunting

Major Periods

12:54 AM - 3:24 AM
3:17 PM - 5:47 PM

Minor Periods

7:06 PM - 8:36 PM
7:39 AM - 9:09 AM

Action Rating: 4 out of 5

Wednesday, February 4, 2026

Weather Forecast

Heavy snow
31.7°F
17.2°F
27.8°F
92%
0.13 in
60%
39%
8.5 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 15.25 μg/m3
PM10: 15.27 μg/m3
Carbon Monoxide: 326.24 μg/m3
Nitrogen Dioxide: 24.92 μg/m3
Sulphur Dioxide: 4.42 μg/m3
Ozone: 42.31 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 12:16 AM
Sunset: 5:25 PM
Daylight: 10 hrs 19 mins
Moonrise: 8:43 PM
Moon Transit: 2:10 AM
Moonset: 8:33 AM
Moon Phase: Full
Moon Illumination: 90.9%

Best Times for Fishing or Hunting

Major Periods

1:40 AM - 4:10 AM
4:01 PM - 6:31 PM

Minor Periods

8:13 PM - 9:43 PM
8:03 AM - 9:33 AM

Action Rating: 3 out of 5

Thursday, February 5, 2026

Weather Forecast

Sunny
26.7°F
11.7°F
16.9°F
85%
0 in
0%
0%
9.6 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:16 AM
Sunset: 5:27 PM
Daylight: 10 hrs 21 mins
Moonrise: 9:47 PM
Moon Transit: 2:54 AM
Moonset: 8:54 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:24 AM - 4:54 AM
4:44 PM - 7:14 PM

Minor Periods

9:17 PM - 10:47 PM
8:24 AM - 9:54 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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