Water Temperature of the Delaware River in New Castle, DE

Current Water Temperature

81.3°F

Measurement Time: Friday, July 10, 2026, 2:33 PM 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

82.9°F
Heavy rain at times
Heavy rain at times
93°F
82.1°F
82%
WNW 7.2 mph
9.7 mph
77.5°F
72.7°F
0.82 in
0%
9 mi
1011 mbar
1

Five Day Weather Forecast

Sunny
Fri
H: 92°F
L: 72°F
Sunny
Sat
H: 86°F
L: 71°F
Sunny
Sun
H: 86°F
L: 65°F
Sunny
Mon
H: 85°F
L: 64°F
Sunny
Tue
H: 90°F
L: 66°F

Air Quality

AQI: 1 - Good
PM2.5: 8.8 μg/m3
PM10: 9.1 μg/m3
Carbon Monoxide: 162 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 132 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:07 PM
Sunset: 8:32 PM
Daylight: 14 hrs 49 mins
Moonrise: 1:32 AM
Moon Transit: 9:09 AM
Moonset: 4:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

8:39 AM - 11:09 AM
12:00 AM - 12:00 AM

Minor Periods

4:29 PM - 5:59 PM
1:02 AM - 2:32 AM

Action Rating: 2 out of 5

Friday, July 10, 2026

Weather Forecast

Sunny
91.6°F
72.3°F
78.8°F
82%
1.43 in
75%
0%
9.4 mph
7.6


Air Quality

AQI: 1 - Good
PM2.5: 8.25 μg/m3
PM10: 8.52 μg/m3
Carbon Monoxide: 174.75 μg/m3
Nitrogen Dioxide: 8.23 μg/m3
Sulphur Dioxide: 1.64 μg/m3
Ozone: 87.25 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:07 PM
Sunset: 8:32 PM
Daylight: 14 hrs 49 mins
Moonrise: 1:32 AM
Moon Transit: 9:09 AM
Moonset: 4:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

8:39 AM - 11:09 AM
12:00 AM - 12:00 AM

Minor Periods

4:29 PM - 5:59 PM
1:02 AM - 2:32 AM

Action Rating: 2 out of 5

Saturday, July 11, 2026

Weather Forecast

Sunny
85.8°F
70.7°F
76.3°F
79%
0.26 in
73%
0%
8.7 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 11.2 μg/m3
PM10: 11.43 μg/m3
Carbon Monoxide: 185.21 μg/m3
Nitrogen Dioxide: 13.87 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 70.88 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:07 PM
Sunset: 8:31 PM
Daylight: 14 hrs 47 mins
Moonrise: 2:17 AM
Moon Transit: 10:12 AM
Moonset: 6:15 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:42 AM - 12:12 AM

Minor Periods

5:45 PM - 7:15 PM
1:47 AM - 3:17 AM

Action Rating: 2 out of 5

Sunday, July 12, 2026

Weather Forecast

Sunny
86.4°F
65.4°F
74.4°F
59%
0 in
4%
0%
10.3 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 14.94 μg/m3
PM10: 15.55 μg/m3
Carbon Monoxide: 188.46 μg/m3
Nitrogen Dioxide: 11.14 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 91.88 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:07 PM
Sunset: 8:31 PM
Daylight: 14 hrs 46 mins
Moonrise: 3:13 AM
Moon Transit: 11:18 AM
Moonset: 7:24 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:16 AM - 2:46 AM
10:48 AM - 1:18 PM

Minor Periods

6:54 PM - 8:24 PM
2:43 AM - 4:13 AM

Action Rating: 3 out of 5

Monday, July 13, 2026

Weather Forecast

Sunny
84.7°F
63.6°F
73.5°F
67%
0 in
6%
0%
9.8 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 13.69 μg/m3
PM10: 15.76 μg/m3
Carbon Monoxide: 177.33 μg/m3
Nitrogen Dioxide: 12 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 88.67 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:07 PM
Sunset: 8:30 PM
Daylight: 14 hrs 45 mins
Moonrise: 4:23 AM
Moon Transit: 12:25 AM
Moonset: 8:21 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

1:23 AM - 3:53 AM
11:55 AM - 2:25 PM

Minor Periods

7:51 PM - 9:21 PM
3:53 AM - 5:23 AM

Action Rating: 4 out of 5

Tuesday, July 14, 2026

Weather Forecast

Sunny
90.3°F
65.6°F
77.6°F
61%
0 in
3%
0%
9.8 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 7.66 μg/m3
PM10: 8.91 μg/m3
Carbon Monoxide: 205.78 μg/m3
Nitrogen Dioxide: 12.54 μg/m3
Sulphur Dioxide: 0.81 μg/m3
Ozone: 47.44 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:08 PM
Sunset: 8:30 PM
Daylight: 14 hrs 44 mins
Moonrise: 5:40 AM
Moon Transit: 1:29 PM
Moonset: 9:06 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

2:30 AM - 5:00 AM
12:59 AM - 3:29 PM

Minor Periods

8:36 PM - 10:06 PM
5:10 AM - 6:40 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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