Water Temperature of the Delaware River in New Castle, DE

Current Water Temperature

78.8°F

Measurement Time: Monday, August 31, 2026, 8:15 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

80°F
Isolated Rain Showers
Isolated Rain Showers
69%
NE 5 mph
69°F

Weather Forecast

Isolated Rain Showers
This Afternoon
84°F - Isolated Rain Showers
Slight Chance Showers And Thunderstorms
Tonight
74°F - Slight Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Tuesday
91°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Tuesday Night
75°F - Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Wednesday
87°F - Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Wednesday Night
75°F - Chance Showers And Thunderstorms
Chance Rain Showers then Chance Showers And Thunderstorms
Thursday
91°F - Chance Rain Showers then Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Thursday Night
73°F - Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Rain Showers
Friday
85°F - Mostly Sunny then Slight Chance Rain Showers
Slight Chance Rain Showers then Partly Cloudy
Friday Night
67°F - Slight Chance Rain Showers then Partly Cloudy
Mostly Sunny then Slight Chance Rain Showers
Saturday
80°F - Mostly Sunny then Slight Chance Rain Showers
Slight Chance Rain Showers then Partly Cloudy
Saturday Night
65°F - Slight Chance Rain Showers then Partly Cloudy
Sunny then Slight Chance Rain Showers
Sunday
80°F - Sunny then Slight Chance Rain Showers
Slight Chance Rain Showers then Partly Cloudy
Sunday Night
64°F - Slight Chance Rain Showers then Partly Cloudy

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: 6:30 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

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: 6:33 AM
Sun Transit: 1:01 PM
Sunset: 7:28 PM
Daylight: 12 hrs 55 mins
Moonrise: 11:52 PM
Moon Transit: 6:53 AM
Moonset: 2:57 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:23 AM - 8:53 AM
8:55 PM - 11:25 PM

Minor Periods

12:00 AM - 12:00 AM
2:27 PM - 3:57 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: 6:33 AM
Sun Transit: 1:01 PM
Sunset: 7:28 PM
Daylight: 12 hrs 55 mins
Moonrise: 11:52 PM
Moon Transit: 6:53 AM
Moonset: 2:57 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:23 AM - 8:53 AM
8:55 PM - 11:25 PM

Minor Periods

12:00 AM - 12:00 AM
2:27 PM - 3:57 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: 6:34 AM
Sun Transit: 1:00 PM
Sunset: 7:27 PM
Daylight: 12 hrs 52 mins
Moonrise: 12:52 AM
Moon Transit: 7:56 AM
Moonset: 4:00 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:26 AM - 9:56 AM
12:00 AM - 12:00 AM

Minor Periods

3:30 PM - 5:00 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: 6:34 AM
Sun Transit: 1:00 PM
Sunset: 7:27 PM
Daylight: 12 hrs 52 mins
Moonrise: 12:52 AM
Moon Transit: 7:56 AM
Moonset: 4:00 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:26 AM - 9:56 AM
12:00 AM - 12:00 AM

Minor Periods

3:30 PM - 5:00 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: 6:35 AM
Sun Transit: 1:00 PM
Sunset: 7:25 PM
Daylight: 12 hrs 50 mins
Moonrise: 12:59 AM
Moon Transit: 9:00 AM
Moonset: 4:52 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:30 AM - 11:00 AM
12:00 AM - 12:00 AM

Minor Periods

4:22 PM - 5:52 PM
12:29 AM - 1:59 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: 6:35 AM
Sun Transit: 1:00 PM
Sunset: 7:25 PM
Daylight: 12 hrs 50 mins
Moonrise: 12:59 AM
Moon Transit: 9:00 AM
Moonset: 4:52 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:30 AM - 11:00 AM
12:00 AM - 12:00 AM

Minor Periods

4:22 PM - 5:52 PM
12:29 AM - 1:59 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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