Water Temperature of the Delaware River in New Castle, DE

Current Water Temperature

76.5°F

Measurement Time: Thursday, June 25, 2026, 6:21 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

75.9°F
Sunny
Sunny
78.5°F
81.9°F
71%
SSW 5.4 mph
6.2 mph
79.1°F
63.3°F
0 in
0%
9 mi
1019 mbar
3.7

Five Day Weather Forecast

Sunny
Thu
H: 92°F
L: 64°F
Patchy rain nearby
Fri
H: 86°F
L: 66°F
Moderate rain
Sat
H: 75°F
L: 65°F
Patchy rain nearby
Sun
H: 84°F
L: 67°F
Patchy rain nearby
Mon
H: 86°F
L: 66°F

Air Quality

PM2.5: 7.2 μg/m3
PM10: 7.2 μg/m3
Carbon Monoxide: 124 μg/m3
Nitrogen Dioxide: 5.7 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 101 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:04 PM
Sunset: 8:34 PM
Daylight: 14 hrs 59 mins
Moonrise: 5:08 PM
Moon Transit: 9:56 PM
Moonset: 2:09 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%

Best Times for Fishing or Hunting

Major Periods

11:02 AM - 1:32 PM
9:26 PM - 11:56 PM

Minor Periods

4:38 PM - 6:08 PM
1:39 AM - 3:09 AM

Action Rating: 2 out of 5

Small Craft Advisory issued June 25 at 2:20AM EDT until June 26 at 3:00AM EDT by NWS Baltimore MD/Washington DC

Effective: Thu June 25, 2026, 2:20 AM
Expires: Thu June 25, 2026, 10:30 AM

* WHAT...South winds 10 to 20 kt with gusts up to 25 kt expected. * WHERE...Chesapeake Bay north of Sandy Point MD, Patapsco River including Baltimore Harbor, and Chester River to Queenstown MD. * WHEN...From 2 PM this afternoon to 3 AM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Small Craft Advisory issued June 25 at 1:39AM EDT until June 26 at 3:00AM EDT by NWS Baltimore MD/Washington DC

Effective: Thu June 25, 2026, 1:39 AM
Expires: Thu June 25, 2026, 9:45 AM

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt expected. * WHERE...Chesapeake Bay north of Sandy Point MD, Patapsco River including Baltimore Harbor, and Chester River to Queenstown MD. * WHEN...From 2 PM this afternoon to 3 AM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Thursday, June 25, 2026

Weather Forecast

Sunny
91.6°F
64°F
76.7°F
59%
0 in
3%
0%
10.5 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 6.79 μg/m3
PM10: 7.04 μg/m3
Carbon Monoxide: 125.63 μg/m3
Nitrogen Dioxide: 8.63 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 85.25 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:04 PM
Sunset: 8:34 PM
Daylight: 14 hrs 59 mins
Moonrise: 5:08 PM
Moon Transit: 9:56 PM
Moonset: 2:09 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%

Best Times for Fishing or Hunting

Major Periods

11:02 AM - 1:32 PM
9:26 PM - 11:56 PM

Minor Periods

4:38 PM - 6:08 PM
1:39 AM - 3:09 AM

Action Rating: 2 out of 5

Friday, June 26, 2026

Weather Forecast

Patchy rain nearby
86.3°F
66.2°F
75.1°F
69%
0.16 in
60%
0%
9.2 mph
3.8


Air Quality

AQI: 1 - Good
PM2.5: 8.88 μg/m3
PM10: 9.65 μg/m3
Carbon Monoxide: 135 μg/m3
Nitrogen Dioxide: 8.58 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 93.29 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:05 PM
Sunset: 8:34 PM
Daylight: 14 hrs 59 mins
Moonrise: 6:10 PM
Moon Transit: 10:44 PM
Moonset: 2:40 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.2%

Best Times for Fishing or Hunting

Major Periods

11:50 AM - 2:20 PM
12:00 AM - 12:00 AM

Minor Periods

5:40 PM - 7:10 PM
2:10 AM - 3:40 AM

Action Rating: 2 out of 5

Saturday, June 27, 2026

Weather Forecast

Moderate rain
74.9°F
64.8°F
68.9°F
90%
0.2 in
87%
0%
7.8 mph
2.4


Air Quality

AQI: 1 - Good
PM2.5: 7.78 μg/m3
PM10: 8.09 μg/m3
Carbon Monoxide: 130.21 μg/m3
Nitrogen Dioxide: 10.9 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 84.63 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:05 PM
Sunset: 8:34 PM
Daylight: 14 hrs 58 mins
Moonrise: 7:09 PM
Moon Transit: 11:35 PM
Moonset: 3:16 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%

Best Times for Fishing or Hunting

Major Periods

12:39 AM - 3:09 PM
12:00 AM - 12:00 AM

Minor Periods

6:39 PM - 8:09 PM
2:46 AM - 4:16 AM

Action Rating: 3 out of 5

Sunday, June 28, 2026

Weather Forecast

Patchy rain nearby
83.8°F
66.8°F
73°F
76%
0.01 in
26%
0%
7.8 mph
6.2


Air Quality

AQI: 1 - Good
PM2.5: 7.39 μg/m3
PM10: 7.53 μg/m3
Carbon Monoxide: 142.05 μg/m3
Nitrogen Dioxide: 8.18 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 85.67 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:05 PM
Sunset: 8:34 PM
Daylight: 14 hrs 58 mins
Moonrise: 8:03 PM
Moon Transit: 12:00 AM
Moonset: 4:00 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:30 PM - 4:00 PM

Minor Periods

7:33 PM - 9:03 PM
3:30 AM - 5:00 AM

Action Rating: 3 out of 5

Monday, June 29, 2026

Weather Forecast

Patchy rain nearby
86.1°F
66.2°F
74.1°F
68%
0.03 in
36%
0%
8.5 mph
0.9


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: 5:37 AM
Sun Transit: 1:05 PM
Sunset: 8:34 PM
Daylight: 14 hrs 57 mins
Moonrise: 8:51 PM
Moon Transit: 12:26 AM
Moonset: 4:51 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:22 PM - 4:52 PM

Minor Periods

8:21 PM - 9:51 PM
4:21 AM - 5:51 AM

Action Rating: 5 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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