Water Temperature of the Delaware River in New Castle, DE

Current Water Temperature

75.9°F

Measurement Time: Monday, September 21, 2026, 10:03 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

66°F
Chance Rain Showers
Chance Rain Showers
78%
NE 10 mph
59°F

Weather Forecast

Chance Rain Showers
Tonight
61°F - Chance Rain Showers
Rain Showers
Tuesday
65°F - Rain Showers
Chance Rain Showers
Tuesday Night
57°F - Chance Rain Showers
Chance Rain Showers
Wednesday
66°F - Chance Rain Showers
Slight Chance Rain Showers then Mostly Cloudy
Wednesday Night
57°F - Slight Chance Rain Showers then Mostly Cloudy
Mostly Cloudy
Thursday
65°F - Mostly Cloudy
Slight Chance Rain Showers
Thursday Night
54°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Friday
67°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Friday Night
56°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Saturday
68°F - Slight Chance Rain Showers
Slight Chance Rain Showers then Mostly Cloudy
Saturday Night
57°F - Slight Chance Rain Showers then Mostly Cloudy
Mostly Sunny
Sunday
71°F - Mostly Sunny
Partly Cloudy
Sunday Night
58°F - Partly Cloudy
Mostly Sunny
Monday
72°F - Mostly Sunny

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

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

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: 6:51 AM
Sun Transit: 12:54 AM
Sunset: 6:57 PM
Daylight: 12 hrs 7 mins
Moonrise: 5:32 PM
Moon Transit: 10:57 PM
Moonset: 3:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:02 PM - 6:32 PM
2:57 AM - 4:27 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: 6:51 AM
Sun Transit: 12:54 AM
Sunset: 6:57 PM
Daylight: 12 hrs 7 mins
Moonrise: 5:32 PM
Moon Transit: 10:57 PM
Moonset: 3:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:02 PM - 6:32 PM
2:57 AM - 4:27 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: 6:52 AM
Sun Transit: 12:54 AM
Sunset: 6:56 PM
Daylight: 12 hrs 4 mins
Moonrise: 5:55 PM
Moon Transit: 11:41 PM
Moonset: 4:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 PM
12:00 AM - 12:00 AM

Minor Periods

5:25 PM - 6:55 PM
4:03 AM - 5:33 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: 6:52 AM
Sun Transit: 12:54 AM
Sunset: 6:56 PM
Daylight: 12 hrs 4 mins
Moonrise: 5:55 PM
Moon Transit: 11:41 PM
Moonset: 4:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 PM
12:00 AM - 12:00 AM

Minor Periods

5:25 PM - 6:55 PM
4:03 AM - 5:33 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: 6:53 AM
Sun Transit: 12:53 AM
Sunset: 6:54 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:18 PM
Moon Transit: 12:00 AM
Moonset: 5:38 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

5:48 PM - 7:18 PM
5:08 AM - 6:38 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: 6:53 AM
Sun Transit: 12:53 AM
Sunset: 6:54 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:18 PM
Moon Transit: 12:00 AM
Moonset: 5:38 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

5:48 PM - 7:18 PM
5:08 AM - 6:38 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: 6:54 AM
Sun Transit: 12:53 AM
Sunset: 6:53 PM
Daylight: 11 hrs 59 mins
Moonrise: 6:42 PM
Moon Transit: 8:33 AM
Moonset: 6:45 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
8:03 AM - 10:33 AM

Minor Periods

6:12 PM - 7:42 PM
6:15 AM - 7:45 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: 6:54 AM
Sun Transit: 12:53 AM
Sunset: 6:53 PM
Daylight: 11 hrs 59 mins
Moonrise: 6:42 PM
Moon Transit: 8:33 AM
Moonset: 6:45 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
8:03 AM - 10:33 AM

Minor Periods

6:12 PM - 7:42 PM
6:15 AM - 7:45 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: 6:55 AM
Sun Transit: 12:53 AM
Sunset: 6:51 PM
Daylight: 11 hrs 56 mins
Moonrise: 7:06 PM
Moon Transit: 1:11 AM
Moonset: 7:54 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:41 AM - 3:11 AM
3:05 PM - 5:35 PM

Minor Periods

6:36 PM - 8:06 PM
7:24 AM - 8:54 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: 6:55 AM
Sun Transit: 12:53 AM
Sunset: 6:51 PM
Daylight: 11 hrs 56 mins
Moonrise: 7:06 PM
Moon Transit: 1:11 AM
Moonset: 7:54 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:41 AM - 3:11 AM
3:05 PM - 5:35 PM

Minor Periods

6:36 PM - 8:06 PM
7:24 AM - 8:54 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: 6:56 AM
Sun Transit: 12:52 AM
Sunset: 6:49 PM
Daylight: 11 hrs 54 mins
Moonrise: 7:35 PM
Moon Transit: 2:00 AM
Moonset: 9:06 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:30 AM - 4:00 AM
3:55 PM - 6:25 PM

Minor Periods

7:05 PM - 8:35 PM
8:36 AM - 10:06 AM

Action Rating: 5 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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