Water Temperature of the Delaware River in New Castle, DE

Current Water Temperature

76.3°F

Measurement Time: Friday, June 19, 2026, 4:15 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

71.1°F
Sunny
Sunny
71.1°F
76.2°F
55%
WNW 6 mph
8.9 mph
72°F
54°F
0 in
0%
9 mi
1008 mbar
0.2

Five Day Weather Forecast

Sunny
Fri
H: 88°F
L: 69°F
Sunny
Sat
H: 79°F
L: 59°F
Sunny
Sun
H: 82°F
L: 60°F
Heavy rain
Mon
H: 72°F
L: 62°F
Sunny
Tue
H: 80°F
L: 58°F

Air Quality

AQI: 1 - Good
PM2.5: 2.6 μg/m3
PM10: 2.6 μg/m3
Carbon Monoxide: 132 μg/m3
Nitrogen Dioxide: 5 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 71 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:03 PM
Sunset: 8:33 PM
Daylight: 14 hrs 59 mins
Moonrise: 10:41 AM
Moon Transit: 5:32 PM
Moonset: 12:46 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
5:02 PM - 7:32 PM

Minor Periods

10:11 AM - 11:41 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Small Craft Advisory issued June 19 at 12:36AM EDT until June 20 at 6:00AM EDT by NWS Baltimore MD/Washington DC

Effective: Fri June 19, 2026, 12:36 AM
Expires: Fri June 19, 2026, 8:45 AM

* WHAT...For the first Small Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt. For the second Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 20 kt expected. * WHERE...Chesapeake Bay main channel north of Smith Point VA, Tidal Potomac from Cobb Island MD to Smith Point VA, Chester River to Queenstown MD, Eastern Bay, Choptank River to Cambridge MD and the Little Choptank River, and Tangier Sound and the inland waters surrounding Bloodsworth Island. * WHEN...For the first Small Craft Advisory, until 6 AM EDT early this morning. For the second Small Craft Advisory, from 5 PM this afternoon to 6 AM EDT Saturday. * 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 19 at 12:36AM EDT until June 19 at 6:00AM EDT by NWS Baltimore MD/Washington DC

Effective: Fri June 19, 2026, 12:36 AM
Expires: Fri June 19, 2026, 8:45 AM

* WHAT...For the first Small Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt. For the second Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 20 kt expected. * WHERE...Chesapeake Bay main channel north of Smith Point VA, Tidal Potomac from Cobb Island MD to Smith Point VA, Chester River to Queenstown MD, Eastern Bay, Choptank River to Cambridge MD and the Little Choptank River, and Tangier Sound and the inland waters surrounding Bloodsworth Island. * WHEN...For the first Small Craft Advisory, until 6 AM EDT early this morning. For the second Small Craft Advisory, from 5 PM this afternoon to 6 AM EDT Saturday. * 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 19 at 8:10AM EDT until June 20 at 6:00AM EDT by NWS Baltimore MD/Washington DC

Effective: Fri June 19, 2026, 8:10 AM
Expires: Fri June 19, 2026, 4:15 PM

* WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt expected. * WHERE...Chesapeake Bay north of Sandy Point MD, and Chester River to Queenstown MD. * WHEN...From 2 PM this afternoon to 6 AM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Friday, June 19, 2026

Weather Forecast

Sunny
88.3°F
68.8°F
76.8°F
48%
0 in
2%
0%
12.1 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 3.79 μg/m3
PM10: 3.95 μg/m3
Carbon Monoxide: 124.67 μg/m3
Nitrogen Dioxide: 4 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 82.33 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:03 PM
Sunset: 8:33 PM
Daylight: 14 hrs 59 mins
Moonrise: 10:41 AM
Moon Transit: 5:32 PM
Moonset: 12:46 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
5:02 PM - 7:32 PM

Minor Periods

10:11 AM - 11:41 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, June 20, 2026

Weather Forecast

Sunny
78.7°F
59°F
69.8°F
54%
0 in
3%
0%
14.3 mph
9.4


Air Quality

AQI: 1 - Good
PM2.5: 4.44 μg/m3
PM10: 4.58 μg/m3
Carbon Monoxide: 116.54 μg/m3
Nitrogen Dioxide: 3.26 μg/m3
Sulphur Dioxide: 0.81 μg/m3
Ozone: 79.29 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:03 PM
Sunset: 8:34 PM
Daylight: 15 hrs mins
Moonrise: 11:50 AM
Moon Transit: 6:18 PM
Moonset: 12:12 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

7:25 AM - 9:55 AM
5:48 PM - 8:18 PM

Minor Periods

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

Action Rating: 3 out of 5

Sunday, June 21, 2026

Weather Forecast

Sunny
82.3°F
59.8°F
71.4°F
56%
0 in
3%
0%
11.4 mph
9.2


Air Quality

AQI: 1 - Good
PM2.5: 6.78 μg/m3
PM10: 7.1 μg/m3
Carbon Monoxide: 130.38 μg/m3
Nitrogen Dioxide: 7 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 87.29 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:03 PM
Sunset: 8:34 PM
Daylight: 15 hrs mins
Moonrise: 12:56 AM
Moon Transit: 7:01 PM
Moonset: 12:36 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

8:09 AM - 10:39 AM
6:31 PM - 9:01 PM

Minor Periods

12:26 AM - 1:56 PM
12:06 AM - 1:36 AM

Action Rating: 3 out of 5

Monday, June 22, 2026

Weather Forecast

Heavy rain
72.4°F
62.1°F
66.1°F
86%
0.82 in
88%
0%
10.5 mph
2.4


Air Quality

AQI: 1 - Good
PM2.5: 5.52 μg/m3
PM10: 6.03 μg/m3
Carbon Monoxide: 129.91 μg/m3
Nitrogen Dioxide: 4.28 μg/m3
Sulphur Dioxide: 0.85 μg/m3
Ozone: 92.13 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:04 PM
Sunset: 8:34 PM
Daylight: 14 hrs 59 mins
Moonrise: 1:59 PM
Moon Transit: 7:43 PM
Moonset: 12:57 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%

Best Times for Fishing or Hunting

Major Periods

8:52 AM - 11:22 AM
7:13 PM - 9:43 PM

Minor Periods

1:29 PM - 2:59 PM
12:27 AM - 1:57 AM

Action Rating: 2 out of 5

Tuesday, June 23, 2026

Weather Forecast

Sunny
79.9°F
57.9°F
67.4°F
70%
0 in
5%
0%
11.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 2.78 μg/m3
PM10: 2.96 μg/m3
Carbon Monoxide: 177.22 μg/m3
Nitrogen Dioxide: 6.48 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 58.44 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:04 PM
Sunset: 8:34 PM
Daylight: 14 hrs 59 mins
Moonrise: 3:02 PM
Moon Transit: 8:26 PM
Moonset: 1:19 AM
Moon Phase: First Quarter
Moon Illumination: 61.0%

Best Times for Fishing or Hunting

Major Periods

9:34 AM - 12:04 AM
7:56 PM - 10:26 PM

Minor Periods

2:32 PM - 4:02 PM
12:49 AM - 2:19 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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