Water Temperature of the Delaware River in New Castle, DE

Current Water Temperature

58.3°F 14.6°C
Cold Thermal Gear Required
58.3°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Cold shock risk with rapid dexterity loss (10–15 mins). Wetsuit or drysuit strongly advised for any immersion.

Measurement Time: Thursday, November 12, 2026, 12:57 PM EST

Temperature Locations

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Local Points of Interest

Delaware Memorial Bridge; Wilmington, DE; Pennsville Township, NJ

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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

55.2°F
Overcast
Conditions: Overcast
Humidity: 88%
Feels Like: 54.5°F
Wind: NW 3 mph
Wind Gusts: 13.4 mph
Pressure: 29.42 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9.6 mi
UV Index: 0

Five-Day Weather Forecast

Dense Drizzle
Thu
H: 64°F
L: 49°F
Light Snow
Fri
H: 50°F
L: 36°F
Overcast
Sat
H: 46°F
L: 35°F
Overcast
Sun
H: 50°F
L: 39°F
Sunny
Mon
H: 51°F
L: 37°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
12 μg/m³
Good
PM10
13 μg/m³
Good
Ozone (O3)
49 μg/m³
Photochemical
NO2
26.8 μg/m³
Nitrogen Dioxide
SO2
1.5 μg/m³
Sulfur Dioxide
CO
252 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 6m daylight
Sunrise 6:43 AM
Solar Noon 11:46 AM
Sunset 4:49 PM
Moon
Waxing Crescent • 6%
Moonrise 10:07 AM
Transit 2:32 PM
Moonset 6:58 PM

Best Times for Fishing or Hunting

Major Periods

1:36 AM - 4:06 AM
2:02 PM - 4:32 PM

Minor Periods

9:37 AM - 11:07 AM
6:28 PM - 7:58 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Dense Drizzle
Average Temperature: 54.5°F
Average Humidity: 82%
Chance of Rain: 68%
Wind: 11.6 mph
UV Index: 2.6

Air Quality

EPA Index 1 • Good
PM2.5
7.9 μg/m³
Good
PM10
9.8 μg/m³
Good
Ozone (O3)
57.8 μg/m³
Photochemical
NO2
12.5 μg/m³
Nitrogen Dioxide
SO2
1 μg/m³
Sulfur Dioxide
CO
196.2 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 6m daylight
Sunrise 6:43 AM
Solar Noon 11:46 AM
Sunset 4:49 PM
Moon
Waxing Crescent • 6%
Moonrise 10:07 AM
Transit 2:32 PM
Moonset 6:58 PM

Best Times for Fishing or Hunting

Major Periods

1:36 AM - 4:06 AM
2:02 PM - 4:32 PM

Minor Periods

9:37 AM - 11:07 AM
6:28 PM - 7:58 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Light Snow
Average Temperature: 41.5°F
Average Humidity: 91%
Chance of Rain: 72%
Wind: 14 mph
UV Index: 0.4

Air Quality

EPA Index 1 • Good
PM2.5
2.1 μg/m³
Good
PM10
2.1 μg/m³
Good
Ozone (O3)
44.3 μg/m³
Photochemical
NO2
9.3 μg/m³
Nitrogen Dioxide
SO2
1.1 μg/m³
Sulfur Dioxide
CO
171.6 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 4m daylight
Sunrise 6:45 AM
Solar Noon 11:46 AM
Sunset 4:48 PM
Moon
Waxing Crescent • 13%
Moonrise 10:53 AM
Transit 3:22 PM
Moonset 7:56 PM

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
2:52 PM - 5:22 PM

Minor Periods

10:23 AM - 11:53 AM
7:26 PM - 8:56 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 39.9°F
Average Humidity: 73%
Chance of Rain: 19%
Wind: 13 mph
UV Index: 3.3

Air Quality

EPA Index 1 • Good
PM2.5
2.2 μg/m³
Good
PM10
2.2 μg/m³
Good
Ozone (O3)
52.7 μg/m³
Photochemical
NO2
5.6 μg/m³
Nitrogen Dioxide
SO2
1.1 μg/m³
Sulfur Dioxide
CO
155.3 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 2m daylight
Sunrise 6:46 AM
Solar Noon 11:46 AM
Sunset 4:47 PM
Moon
Waxing Crescent • 21%
Moonrise 11:32 AM
Transit 4:11 PM
Moonset 8:56 PM

Best Times for Fishing or Hunting

Major Periods

3:17 AM - 5:47 AM
3:41 PM - 6:11 PM

Minor Periods

11:02 AM - 12:32 PM
8:26 PM - 9:56 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 43.5°F
Average Humidity: 67%
Chance of Rain: 0%
Wind: 12.1 mph
UV Index: 3.1

Air Quality

EPA Index 1 • Good
PM2.5
1.7 μg/m³
Good
PM10
1.7 μg/m³
Good
Ozone (O3)
55.8 μg/m³
Photochemical
NO2
5.1 μg/m³
Nitrogen Dioxide
SO2
0.9 μg/m³
Sulfur Dioxide
CO
138 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 0m daylight
Sunrise 6:47 AM
Solar Noon 11:46 AM
Sunset 4:47 PM
Moon
Waxing Crescent • 31%
Moonrise 12:05 PM
Transit 4:58 PM
Moonset 9:58 PM

Best Times for Fishing or Hunting

Major Periods

4:05 AM - 6:35 AM
4:28 PM - 6:58 PM

Minor Periods

11:35 AM - 1:05 PM
9:28 PM - 10:58 PM
Action Rating:
Very Good 4/5
Monday, November 16, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 42.6°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 10 mph
UV Index: 3.2

Air Quality

EPA Index 1 • Good
PM2.5
5.5 μg/m³
Good
PM10
5.6 μg/m³
Good
Ozone (O3)
44 μg/m³
Photochemical
NO2
12.3 μg/m³
Nitrogen Dioxide
SO2
2 μg/m³
Sulfur Dioxide
CO
188.6 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 58m daylight
Sunrise 6:48 AM
Solar Noon 11:46 AM
Sunset 4:46 PM
Moon
First Quarter • 42%
Moonrise 12:33 PM
Transit 5:42 PM
Moonset 11:01 PM

Best Times for Fishing or Hunting

Major Periods

4:50 AM - 7:20 AM
5:12 PM - 7:42 PM

Minor Periods

12:03 PM - 1:33 PM
10:31 PM - 12:01 AM
Action Rating:
Good Action 3/5
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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