Water Temperature of the Delaware River in New Castle, DE

Current Water Temperature

78.8°F

Measurement Time: Friday, August 28, 2026, 6:45 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

77°F
Slight Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms
82%
N 5 mph
71°F

Weather Forecast

Slight Chance Showers And Thunderstorms
Today
84°F - Slight Chance Showers And Thunderstorms
Partly Cloudy
Tonight
67°F - Partly Cloudy
Mostly Sunny
Saturday
83°F - Mostly Sunny
Mostly Clear
Saturday Night
67°F - Mostly Clear
Sunny
Sunday
85°F - Sunny
Partly Cloudy
Sunday Night
72°F - Partly Cloudy
Mostly Sunny
Monday
88°F - Mostly Sunny
Partly Cloudy
Monday Night
73°F - Partly Cloudy
Partly Sunny then Chance Showers And Thunderstorms
Tuesday
89°F - Partly Sunny then Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Tuesday Night
74°F - Chance Showers And Thunderstorms
Chance Rain Showers
Wednesday
89°F - Chance Rain Showers
Chance Showers And Thunderstorms
Wednesday Night
73°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Thursday
87°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Thursday Night
70°F - Chance Showers And Thunderstorms

Astronomical

Sunrise: 6:27 AM
Sun Transit: 1:03 PM
Sunset: 7:39 PM
Daylight: 13 hrs 12 mins
Moonrise: 7:53 PM
Moon Transit: 1:03 AM
Moonset: 6:48 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:33 AM - 3:03 AM
2:55 PM - 5:25 PM

Minor Periods

7:23 PM - 8:53 PM
6:18 AM - 7:48 AM

Action Rating: 5 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: 6:27 AM
Sun Transit: 1:03 PM
Sunset: 7:39 PM
Daylight: 13 hrs 12 mins
Moonrise: 7:53 PM
Moon Transit: 1:03 AM
Moonset: 6:48 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:33 AM - 3:03 AM
2:55 PM - 5:25 PM

Minor Periods

7:23 PM - 8:53 PM
6:18 AM - 7:48 AM

Action Rating: 5 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: 6:27 AM
Sun Transit: 1:03 PM
Sunset: 7:39 PM
Daylight: 13 hrs 12 mins
Moonrise: 7:53 PM
Moon Transit: 1:03 AM
Moonset: 6:48 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:33 AM - 3:03 AM
2:55 PM - 5:25 PM

Minor Periods

7:23 PM - 8:53 PM
6:18 AM - 7:48 AM

Action Rating: 5 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: 6:28 AM
Sun Transit: 1:02 PM
Sunset: 7:38 PM
Daylight: 13 hrs 10 mins
Moonrise: 8:15 PM
Moon Transit: 1:47 AM
Moonset: 7:53 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

1:17 AM - 3:47 AM
12:00 AM - 12:00 AM

Minor Periods

7:45 PM - 9:15 PM
7:23 AM - 8:53 AM

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: 6:28 AM
Sun Transit: 1:02 PM
Sunset: 7:38 PM
Daylight: 13 hrs 10 mins
Moonrise: 8:15 PM
Moon Transit: 1:47 AM
Moonset: 7:53 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

1:17 AM - 3:47 AM
12:00 AM - 12:00 AM

Minor Periods

7:45 PM - 9:15 PM
7:23 AM - 8:53 AM

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: 6:29 AM
Sun Transit: 1:02 PM
Sunset: 7:36 PM
Daylight: 13 hrs 7 mins
Moonrise: 8:38 PM
Moon Transit: 12:49 AM
Moonset: 9:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
12:19 AM - 2:49 AM

Minor Periods

8:08 PM - 9:38 PM
8:30 AM - 10:00 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: 6:29 AM
Sun Transit: 1:02 PM
Sunset: 7:36 PM
Daylight: 13 hrs 7 mins
Moonrise: 8:38 PM
Moon Transit: 12:49 AM
Moonset: 9:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
12:19 AM - 2:49 AM

Minor Periods

8:08 PM - 9:38 PM
8:30 AM - 10:00 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: 6:30 AM
Sun Transit: 1:02 PM
Sunset: 7:34 PM
Daylight: 13 hrs 5 mins
Moonrise: 9:04 PM
Moon Transit: 3:17 AM
Moonset: 10:08 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:47 AM - 5:17 AM
5:10 PM - 7:40 PM

Minor Periods

8:34 PM - 10:04 PM
9:38 AM - 11:08 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: 6:30 AM
Sun Transit: 1:02 PM
Sunset: 7:34 PM
Daylight: 13 hrs 5 mins
Moonrise: 9:04 PM
Moon Transit: 3:17 AM
Moonset: 10:08 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:47 AM - 5:17 AM
5:10 PM - 7:40 PM

Minor Periods

8:34 PM - 10:04 PM
9:38 AM - 11:08 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: 6:31 AM
Sun Transit: 1:02 PM
Sunset: 7:33 PM
Daylight: 13 hrs 2 mins
Moonrise: 9:33 PM
Moon Transit: 4:05 AM
Moonset: 11:19 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:35 AM - 6:05 AM
6:00 PM - 8:30 PM

Minor Periods

9:03 PM - 10:33 PM
10:49 AM - 12:19 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: 6:31 AM
Sun Transit: 1:02 PM
Sunset: 7:33 PM
Daylight: 13 hrs 2 mins
Moonrise: 9:33 PM
Moon Transit: 4:05 AM
Moonset: 11:19 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:35 AM - 6:05 AM
6:00 PM - 8:30 PM

Minor Periods

9:03 PM - 10:33 PM
10:49 AM - 12:19 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: 6:31 AM
Sun Transit: 1:01 PM
Sunset: 7:31 PM
Daylight: 13 hrs mins
Moonrise: 10:10 PM
Moon Transit: 4:57 AM
Moonset: 12:33 AM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:27 AM - 6:57 AM
6:55 PM - 9:25 PM

Minor Periods

9:40 PM - 11:10 PM
12:03 AM - 1:33 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: 6:31 AM
Sun Transit: 1:01 PM
Sunset: 7:31 PM
Daylight: 13 hrs mins
Moonrise: 10:10 PM
Moon Transit: 4:57 AM
Moonset: 12:33 AM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:27 AM - 6:57 AM
6:55 PM - 9:25 PM

Minor Periods

9:40 PM - 11:10 PM
12:03 AM - 1:33 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: 6:32 AM
Sun Transit: 1:01 PM
Sunset: 7:30 PM
Daylight: 12 hrs 57 mins
Moonrise: 10:55 PM
Moon Transit: 5:53 AM
Moonset: 1:47 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:23 AM - 7:53 AM
7:53 PM - 10:23 PM

Minor Periods

10:25 PM - 11:55 PM
1:17 PM - 2:47 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: 6:32 AM
Sun Transit: 1:01 PM
Sunset: 7:30 PM
Daylight: 12 hrs 57 mins
Moonrise: 10:55 PM
Moon Transit: 5:53 AM
Moonset: 1:47 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:23 AM - 7:53 AM
7:53 PM - 10:23 PM

Minor Periods

10:25 PM - 11:55 PM
1:17 PM - 2:47 PM

Action Rating: 3 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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