Water Temperature of the Delaware River in New Castle, DE

Current Water Temperature

79.0°F

Measurement Time: Wednesday, September 9, 2026, 10:30 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

85°F
Sunny
Sunny
53%
SW 10 mph
66°F

Weather Forecast

Sunny
This Afternoon
86°F - Sunny
Mostly Clear
Tonight
72°F - Mostly Clear
Mostly Sunny then Slight Chance Showers And Thunderstorms
Thursday
86°F - Mostly Sunny then Slight Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Thursday Night
68°F - Chance Showers And Thunderstorms
Mostly Sunny
Friday
81°F - Mostly Sunny
Partly Cloudy
Friday Night
65°F - Partly Cloudy
Partly Sunny then Chance Rain Showers
Saturday
81°F - Partly Sunny then Chance Rain Showers
Showers And Thunderstorms Likely
Saturday Night
71°F - Showers And Thunderstorms Likely
Showers And Thunderstorms Likely
Sunday
83°F - Showers And Thunderstorms Likely
Chance Showers And Thunderstorms then Partly Cloudy
Sunday Night
71°F - Chance Showers And Thunderstorms then Partly Cloudy
Mostly Sunny
Monday
83°F - Mostly Sunny
Partly Cloudy
Monday Night
68°F - Partly Cloudy
Mostly Sunny
Tuesday
84°F - Mostly Sunny
Mostly Clear
Tuesday Night
72°F - Mostly Clear

Astronomical

Sunrise: 6:38 AM
Sun Transit: 1:00 PM
Sunset: 7:20 PM
Daylight: 12 hrs 42 mins
Moonrise: 4:45 AM
Moon Transit: 11:47 AM
Moonset: 6:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:51 AM - 3:21 AM
11:17 AM - 1:47 PM

Minor Periods

6:06 PM - 7:36 PM
4:15 AM - 5:45 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: 6:38 AM
Sun Transit: 1:00 PM
Sunset: 7:20 PM
Daylight: 12 hrs 42 mins
Moonrise: 4:45 AM
Moon Transit: 11:47 AM
Moonset: 6:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:51 AM - 3:21 AM
11:17 AM - 1:47 PM

Minor Periods

6:06 PM - 7:36 PM
4:15 AM - 5:45 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: 6:38 AM
Sun Transit: 1:00 PM
Sunset: 7:20 PM
Daylight: 12 hrs 42 mins
Moonrise: 4:45 AM
Moon Transit: 11:47 AM
Moonset: 6:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:51 AM - 3:21 AM
11:17 AM - 1:47 PM

Minor Periods

6:06 PM - 7:36 PM
4:15 AM - 5:45 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: 6:39 AM
Sun Transit: 1:00 PM
Sunset: 7:18 PM
Daylight: 12 hrs 40 mins
Moonrise: 5:58 AM
Moon Transit: 12:35 AM
Moonset: 7:01 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:41 AM - 4:11 AM
12:05 AM - 2:35 PM

Minor Periods

6:31 PM - 8:01 PM
5:28 AM - 6:58 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: 6:39 AM
Sun Transit: 1:00 PM
Sunset: 7:18 PM
Daylight: 12 hrs 40 mins
Moonrise: 5:58 AM
Moon Transit: 12:35 AM
Moonset: 7:01 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:41 AM - 4:11 AM
12:05 AM - 2:35 PM

Minor Periods

6:31 PM - 8:01 PM
5:28 AM - 6:58 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: 6:40 AM
Sun Transit: 12:58 AM
Sunset: 7:17 PM
Daylight: 12 hrs 37 mins
Moonrise: 7:08 AM
Moon Transit: 1:21 PM
Moonset: 7:24 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

2:28 AM - 4:58 AM
12:51 AM - 3:21 PM

Minor Periods

6:54 PM - 8:24 PM
6:38 AM - 8:08 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: 6:40 AM
Sun Transit: 12:58 AM
Sunset: 7:17 PM
Daylight: 12 hrs 37 mins
Moonrise: 7:08 AM
Moon Transit: 1:21 PM
Moonset: 7:24 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

2:28 AM - 4:58 AM
12:51 AM - 3:21 PM

Minor Periods

6:54 PM - 8:24 PM
6:38 AM - 8:08 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: 6:41 AM
Sun Transit: 12:58 AM
Sunset: 7:15 PM
Daylight: 12 hrs 35 mins
Moonrise: 8:16 AM
Moon Transit: 2:07 PM
Moonset: 7:48 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

3:14 AM - 5:44 AM
1:37 PM - 4:07 PM

Minor Periods

7:18 PM - 8:48 PM
7:46 AM - 9:16 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: 6:41 AM
Sun Transit: 12:58 AM
Sunset: 7:15 PM
Daylight: 12 hrs 35 mins
Moonrise: 8:16 AM
Moon Transit: 2:07 PM
Moonset: 7:48 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

3:14 AM - 5:44 AM
1:37 PM - 4:07 PM

Minor Periods

7:18 PM - 8:48 PM
7:46 AM - 9:16 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: 6:42 AM
Sun Transit: 12:57 AM
Sunset: 7:14 PM
Daylight: 12 hrs 32 mins
Moonrise: 9:23 AM
Moon Transit: 2:52 PM
Moonset: 8:12 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

3:58 AM - 6:28 AM
2:22 PM - 4:52 PM

Minor Periods

7:42 PM - 9:12 PM
8:53 AM - 10:23 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: 6:42 AM
Sun Transit: 12:57 AM
Sunset: 7:14 PM
Daylight: 12 hrs 32 mins
Moonrise: 9:23 AM
Moon Transit: 2:52 PM
Moonset: 8:12 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

3:58 AM - 6:28 AM
2:22 PM - 4:52 PM

Minor Periods

7:42 PM - 9:12 PM
8:53 AM - 10:23 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: 6:43 AM
Sun Transit: 12:57 AM
Sunset: 7:12 PM
Daylight: 12 hrs 29 mins
Moonrise: 10:29 AM
Moon Transit: 3:38 PM
Moonset: 8:40 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

4:44 AM - 7:14 AM
3:08 PM - 5:38 PM

Minor Periods

8:10 PM - 9:40 PM
9:59 AM - 11:29 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: 7:12 PM
Daylight: 12 hrs 29 mins
Moonrise: 10:29 AM
Moon Transit: 3:38 PM
Moonset: 8:40 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

4:44 AM - 7:14 AM
3:08 PM - 5:38 PM

Minor Periods

8:10 PM - 9:40 PM
9:59 AM - 11:29 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: 6:43 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

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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