Water Temperature of the Delaware River in New Castle, DE

Current Water Temperature

53.2°F

Measurement Time: Tuesday, April 7, 2026, 1:09 AM EDT

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

48°F
Overcast
Overcast
44°F
45.2°F
61%
WNW 8.9 mph
13.7 mph
41°F
35.8°F
0 in
100%
9 mi
1019 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 55°F
L: 36°F
Sunny
Wed
H: 51°F
L: 29°F
Overcast
Thu
H: 45°F
L: 35°F
Sunny
Fri
H: 64°F
L: 39°F
Sunny
Sat
H: 72°F
L: 46°F

Air Quality

AQI: 1 - Good
PM2.5: 5.95 μg/m3
PM10: 6.15 μg/m3
Carbon Monoxide: 168.85 μg/m3
Nitrogen Dioxide: 7.05 μg/m3
Sulphur Dioxide: 5.65 μg/m3
Ozone: 69 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:04 PM
Sunset: 7:32 PM
Daylight: 12 hrs 55 mins
Moonrise: 12:34 AM
Moon Transit: 5:00 AM
Moonset: 9:22 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

4:30 AM - 7:00 AM
6:54 PM - 9:24 PM

Minor Periods

8:52 AM - 10:22 AM
12:04 AM - 1:34 AM

Action Rating: 3 out of 5

Freeze Watch issued April 6 at 12:15PM EDT until April 8 at 9:00AM EDT by NWS Mount Holly NJ

Effective: Mon April 6, 2026, 12:15 PM
Expires: Tue April 7, 2026, 6:00 AM

* WHAT...Sub-freezing temperatures as low as 24 possible. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central and southern New Jersey, and east central and southeast Pennsylvania. * WHEN...From late Tuesday night through Wednesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.


Freeze Warning issued April 7 at 2:19AM EDT until April 8 at 9:00AM EDT by NWS Mount Holly NJ

Effective: Tue April 7, 2026, 2:19 AM
Expires: Tue April 7, 2026, 4:00 PM

* WHAT...For the Freeze Warning, sub-freezing temperatures with lows between 25 and 30 degrees expected. For the Freeze Watch, sub-freezing temperatures with lows between 25 and 31 degrees and frost development possible. * WHERE...Portions of northern Delaware and central and southern New Jersey. * WHEN...For the Freeze Warning, from midnight tonight to 9 AM EDT Wednesday. For the Freeze Watch, from Wednesday evening through Thursday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.


Freeze Watch issued April 7 at 2:19AM EDT until April 9 at 9:00AM EDT by NWS Mount Holly NJ

Effective: Tue April 7, 2026, 2:19 AM
Expires: Tue April 7, 2026, 4:00 PM

* WHAT...For the Freeze Warning, sub-freezing temperatures with lows between 25 and 30 degrees expected. For the Freeze Watch, sub-freezing temperatures with lows between 25 and 31 degrees and frost development possible. * WHERE...Portions of northern Delaware and central and southern New Jersey. * WHEN...For the Freeze Warning, from midnight tonight to 9 AM EDT Wednesday. For the Freeze Watch, from Wednesday evening through Thursday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.


Freeze Warning issued April 7 at 2:19AM EDT until April 8 at 9:00AM EDT by NWS Mount Holly NJ

Effective: Tue April 7, 2026, 2:19 AM
Expires: Tue April 7, 2026, 4:00 PM

* WHAT...For the Freeze Warning, sub-freezing temperatures with lows between 25 and 30 degrees expected. For the Freeze Watch, sub-freezing temperatures with lows between 27 and 31 degrees and frost development possible. * WHERE...Berks, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Western Chester, and Western Montgomery Counties. * WHEN...For the Freeze Warning, from midnight tonight to 9 AM EDT Wednesday. For the Freeze Watch, from Wednesday evening through Thursday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.


Freeze Watch issued April 7 at 2:19AM EDT until April 9 at 9:00AM EDT by NWS Mount Holly NJ

Effective: Tue April 7, 2026, 2:19 AM
Expires: Tue April 7, 2026, 4:00 PM

* WHAT...For the Freeze Warning, sub-freezing temperatures with lows between 25 and 30 degrees expected. For the Freeze Watch, sub-freezing temperatures with lows between 27 and 31 degrees and frost development possible. * WHERE...Berks, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Western Chester, and Western Montgomery Counties. * WHEN...For the Freeze Warning, from midnight tonight to 9 AM EDT Wednesday. For the Freeze Watch, from Wednesday evening through Thursday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.
Tuesday, April 7, 2026

Weather Forecast

Sunny
55.2°F
36.1°F
47.6°F
52%
0 in
0%
0%
16.6 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 9.11 μg/m3
PM10: 9.47 μg/m3
Carbon Monoxide: 197.49 μg/m3
Nitrogen Dioxide: 11.46 μg/m3
Sulphur Dioxide: 4.03 μg/m3
Ozone: 70.68 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:04 PM
Sunset: 7:32 PM
Daylight: 12 hrs 55 mins
Moonrise: 12:34 AM
Moon Transit: 5:00 AM
Moonset: 9:22 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

4:30 AM - 7:00 AM
6:54 PM - 9:24 PM

Minor Periods

8:52 AM - 10:22 AM
12:04 AM - 1:34 AM

Action Rating: 3 out of 5

Wednesday, April 8, 2026

Weather Forecast

Sunny
51.1°F
28.8°F
39.6°F
58%
0 in
0%
0%
10.1 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 5.15 μg/m3
PM10: 5.76 μg/m3
Carbon Monoxide: 183.09 μg/m3
Nitrogen Dioxide: 7.53 μg/m3
Sulphur Dioxide: 3.56 μg/m3
Ozone: 81.8 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:03 PM
Sunset: 7:33 PM
Daylight: 12 hrs 58 mins
Moonrise: 1:28 AM
Moon Transit: 5:50 AM
Moonset: 10:13 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:20 AM - 7:50 AM
7:46 PM - 10:16 PM

Minor Periods

9:43 AM - 11:13 AM
12:58 AM - 2:28 AM

Action Rating: 3 out of 5

Thursday, April 9, 2026

Weather Forecast

Overcast
45.1°F
35.1°F
39.7°F
87%
0 in
0%
0%
9.6 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 8.39 μg/m3
PM10: 11.5 μg/m3
Carbon Monoxide: 169.05 μg/m3
Nitrogen Dioxide: 6.78 μg/m3
Sulphur Dioxide: 3.01 μg/m3
Ozone: 89.8 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:03 PM
Sunset: 7:34 PM
Daylight: 13 hrs mins
Moonrise: 2:17 AM
Moon Transit: 6:41 AM
Moonset: 11:10 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:11 AM - 8:41 AM
8:37 PM - 11:07 PM

Minor Periods

10:40 AM - 12:10 AM
1:47 AM - 3:17 AM

Action Rating: 3 out of 5

Friday, April 10, 2026

Weather Forecast

Sunny
64°F
39.2°F
50.1°F
71%
0 in
0%
0%
5.8 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 9.45 μg/m3
PM10: 12.29 μg/m3
Carbon Monoxide: 187.36 μg/m3
Nitrogen Dioxide: 7.16 μg/m3
Sulphur Dioxide: 2.8 μg/m3
Ozone: 83.4 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:03 PM
Sunset: 7:35 PM
Daylight: 13 hrs 3 mins
Moonrise: 2:57 AM
Moon Transit: 7:32 AM
Moonset: 12:13 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

7:02 AM - 9:32 AM
9:26 PM - 11:56 PM

Minor Periods

11:43 AM - 1:13 PM
2:27 AM - 3:57 AM

Action Rating: 3 out of 5

Saturday, April 11, 2026

Weather Forecast

Sunny
71.5°F
46°F
55.2°F
70%
0 in
0%
0%
11.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 7.86 μg/m3
PM10: 9.14 μg/m3
Carbon Monoxide: 181.93 μg/m3
Nitrogen Dioxide: 10.5 μg/m3
Sulphur Dioxide: 2.57 μg/m3
Ozone: 67.08 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:03 PM
Sunset: 7:36 PM
Daylight: 13 hrs 5 mins
Moonrise: 3:31 AM
Moon Transit: 8:21 AM
Moonset: 1:18 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

7:51 AM - 10:21 AM
12:00 AM - 12:00 AM

Minor Periods

12:48 AM - 2:18 PM
3:01 AM - 4:31 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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