Water Temperature of the Delaware River in New Castle, DE

Current Water Temperature

77.9°F

Measurement Time: Tuesday, September 15, 2026, 1:45 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

73°F
Mostly Clear
Mostly Clear
49%
S 5 mph
53°F

Weather Forecast

Mostly Clear
Tonight
61°F - Mostly Clear
Sunny
Wednesday
83°F - Sunny
Partly Cloudy
Wednesday Night
68°F - Partly Cloudy
Mostly Sunny
Thursday
85°F - Mostly Sunny
Slight Chance Rain Showers
Thursday Night
72°F - Slight Chance Rain Showers
Slight Chance Rain Showers then Mostly Sunny
Friday
83°F - Slight Chance Rain Showers then Mostly Sunny
Mostly Clear
Friday Night
65°F - Mostly Clear
Mostly Sunny
Saturday
78°F - Mostly Sunny
Mostly Cloudy then Chance Rain Showers
Saturday Night
66°F - Mostly Cloudy then Chance Rain Showers
Chance Rain Showers
Sunday
79°F - Chance Rain Showers
Chance Rain Showers
Sunday Night
68°F - Chance Rain Showers
Chance Rain Showers
Monday
78°F - Chance Rain Showers
Chance Showers And Thunderstorms
Monday Night
67°F - Chance Showers And Thunderstorms
Chance Rain Showers
Tuesday
77°F - Chance Rain Showers

Astronomical

Sunrise: 6:43 AM
Sun Transit: 12:57 AM
Sunset: 7:10 PM
Daylight: 12 hrs 27 mins
Moonrise: 11:35 AM
Moon Transit: 4:25 PM
Moonset: 9:10 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

5:31 AM - 8:01 AM
3:55 PM - 6:25 PM

Minor Periods

8:40 PM - 10:10 PM
11:05 AM - 12:35 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:43 AM
Sun Transit: 12:57 AM
Sunset: 7:10 PM
Daylight: 12 hrs 27 mins
Moonrise: 11:35 AM
Moon Transit: 4:25 PM
Moonset: 9:10 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

5:31 AM - 8:01 AM
3:55 PM - 6:25 PM

Minor Periods

8:40 PM - 10:10 PM
11:05 AM - 12:35 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:44 AM
Sun Transit: 12:56 AM
Sunset: 7:09 PM
Daylight: 12 hrs 24 mins
Moonrise: 12:39 AM
Moon Transit: 5:14 PM
Moonset: 9:47 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

6:19 AM - 8:49 AM
4:44 PM - 7:14 PM

Minor Periods

9:17 PM - 10:47 PM
12:09 AM - 1:39 PM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:44 AM
Sun Transit: 12:56 AM
Sunset: 7:09 PM
Daylight: 12 hrs 24 mins
Moonrise: 12:39 AM
Moon Transit: 5:14 PM
Moonset: 9:47 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

6:19 AM - 8:49 AM
4:44 PM - 7:14 PM

Minor Periods

9:17 PM - 10:47 PM
12:09 AM - 1:39 PM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:45 AM
Sun Transit: 12:56 AM
Sunset: 7:07 PM
Daylight: 12 hrs 22 mins
Moonrise: 1:39 PM
Moon Transit: 6:05 PM
Moonset: 10:31 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

7:10 AM - 9:40 AM
5:35 PM - 8:05 PM

Minor Periods

10:01 PM - 11:31 PM
1:09 PM - 2:39 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:45 AM
Sun Transit: 12:56 AM
Sunset: 7:07 PM
Daylight: 12 hrs 22 mins
Moonrise: 1:39 PM
Moon Transit: 6:05 PM
Moonset: 10:31 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

7:10 AM - 9:40 AM
5:35 PM - 8:05 PM

Minor Periods

10:01 PM - 11:31 PM
1:09 PM - 2:39 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:46 AM
Sun Transit: 12:56 AM
Sunset: 7:06 PM
Daylight: 12 hrs 19 mins
Moonrise: 2:34 PM
Moon Transit: 6:57 PM
Moonset: 11:21 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

8:01 AM - 10:31 AM
6:27 PM - 8:57 PM

Minor Periods

12:00 AM - 12:00 AM
2:04 PM - 3:34 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:46 AM
Sun Transit: 12:56 AM
Sunset: 7:06 PM
Daylight: 12 hrs 19 mins
Moonrise: 2:34 PM
Moon Transit: 6:57 PM
Moonset: 11:21 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

8:01 AM - 10:31 AM
6:27 PM - 8:57 PM

Minor Periods

12:00 AM - 12:00 AM
2:04 PM - 3:34 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:47 AM
Sun Transit: 12:55 AM
Sunset: 7:04 PM
Daylight: 12 hrs 17 mins
Moonrise: 3:22 PM
Moon Transit: 7:48 PM
Moonset: 12:21 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

8:52 AM - 11:22 AM
7:18 PM - 9:48 PM

Minor Periods

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

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:47 AM
Sun Transit: 12:55 AM
Sunset: 7:04 PM
Daylight: 12 hrs 17 mins
Moonrise: 3:22 PM
Moon Transit: 7:48 PM
Moonset: 12:21 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

8:52 AM - 11:22 AM
7:18 PM - 9:48 PM

Minor Periods

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

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:48 AM
Sun Transit: 12:55 AM
Sunset: 7:02 PM
Daylight: 12 hrs 14 mins
Moonrise: 4:03 PM
Moon Transit: 8:38 PM
Moonset: 12:18 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

9:43 AM - 12:13 AM
8:08 PM - 10:38 PM

Minor Periods

3:33 PM - 5:03 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:48 AM
Sun Transit: 12:55 AM
Sunset: 7:02 PM
Daylight: 12 hrs 14 mins
Moonrise: 4:03 PM
Moon Transit: 8:38 PM
Moonset: 12:18 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

9:43 AM - 12:13 AM
8:08 PM - 10:38 PM

Minor Periods

3:33 PM - 5:03 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:49 AM
Sun Transit: 12:55 AM
Sunset: 7:01 PM
Daylight: 12 hrs 12 mins
Moonrise: 4:37 PM
Moon Transit: 9:26 PM
Moonset: 1:19 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

10:32 AM - 1:02 PM
8:56 PM - 11:26 PM

Minor Periods

4:07 PM - 5:37 PM
12:49 AM - 2:19 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:49 AM
Sun Transit: 12:55 AM
Sunset: 7:01 PM
Daylight: 12 hrs 12 mins
Moonrise: 4:37 PM
Moon Transit: 9:26 PM
Moonset: 1:19 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

10:32 AM - 1:02 PM
8:56 PM - 11:26 PM

Minor Periods

4:07 PM - 5:37 PM
12:49 AM - 2:19 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:50 AM
Sun Transit: 12:54 AM
Sunset: 6:59 PM
Daylight: 12 hrs 9 mins
Moonrise: 5:06 PM
Moon Transit: 10:12 PM
Moonset: 2:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

11:19 AM - 1:49 PM
12:00 AM - 12:00 AM

Minor Periods

4:36 PM - 6:06 PM
1:53 AM - 3:23 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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