Water Temperature of the Delaware River in New Castle, DE

Current Water Temperature

64.0°F

Measurement Time: Friday, October 17, 2025, 3:39 PM EDT

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 / 0 meters

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 (13.0 mi)
Delaware River, Middletown, DE (13.2 mi)
White Clay Creek, Landenberg, PA (13.8 mi)

Weather for New Castle, Delaware

Current Weather

55°F
Clear
Conditions: Clear
Humidity: 48%
Feels Like: 53.1°F
Wind: NW 7.4 mph
Wind Gusts: 14 mph
Pressure: 29.99 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Fri
H: 70°F
L: 45°F
Sunny
Sat
H: 67°F
L: 46°F
Partly Cloudy
Sun
H: 75°F
L: 53°F
Moderate rain
Mon
H: 70°F
L: 50°F
Sunny
Tue
H: 69°F
L: 47°F

Air Quality

AQI: 1 - Good
PM2.5: 8.75 μg/m3
PM10: 8.85 μg/m3
Carbon Monoxide: 225.85 μg/m3
Nitrogen Dioxide: 23.75 μg/m3
Sulphur Dioxide: 5.55 μg/m3
Ozone: 36 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 12:47 AM
Sunset: 6:20 PM
Daylight: 11 hrs 5 mins
Moonrise: 3:21 AM
Moon Transit: 10:05 AM
Moonset: 4:39 PM
Moon Phase: Waning Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:35 AM - 12:05 AM

Minor Periods

4:09 PM - 5:39 PM
2:51 AM - 4:21 AM

Action Rating: 2 out of 5

Friday, October 17, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 54.9°F
Average Humidity: 43%
Chance of Rain: 0%
Wind: 10.5 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 3.73 μg/m3
PM10: 3.76 μg/m3
Carbon Monoxide: 178.77 μg/m3
Nitrogen Dioxide: 7.89 μg/m3
Sulphur Dioxide: 3.86 μg/m3
Ozone: 63.36 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 12:47 AM
Sunset: 6:20 PM
Daylight: 11 hrs 5 mins
Moonrise: 3:21 AM
Moon Transit: 10:05 AM
Moonset: 4:39 PM
Moon Phase: Waning Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:35 AM - 12:05 AM

Minor Periods

4:09 PM - 5:39 PM
2:51 AM - 4:21 AM

Action Rating: 2 out of 5

Saturday, October 18, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 56.7°F
Average Humidity: 60%
Chance of Rain: 0%
Wind: 5.6 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 8.53 μg/m3
PM10: 8.57 μg/m3
Carbon Monoxide: 210.01 μg/m3
Nitrogen Dioxide: 18.43 μg/m3
Sulphur Dioxide: 6.31 μg/m3
Ozone: 50.16 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:47 AM
Sunset: 6:18 PM
Daylight: 11 hrs 3 mins
Moonrise: 4:25 AM
Moon Transit: 10:47 AM
Moonset: 4:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:17 AM - 12:47 AM

Minor Periods

4:29 PM - 5:59 PM
3:55 AM - 5:25 AM

Action Rating: 3 out of 5

Sunday, October 19, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 63.6°F
Average Humidity: 73%
Chance of Rain: 0%
Wind: 15 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 8.61 μg/m3
PM10: 8.67 μg/m3
Carbon Monoxide: 172.29 μg/m3
Nitrogen Dioxide: 7.01 μg/m3
Sulphur Dioxide: 4.87 μg/m3
Ozone: 91.24 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 12:46 AM
Sunset: 6:17 PM
Daylight: 11 hrs mins
Moonrise: 5:26 AM
Moon Transit: 11:27 AM
Moonset: 5:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

12:36 AM - 3:06 AM
10:57 AM - 1:27 PM

Minor Periods

4:49 PM - 6:19 PM
4:56 AM - 6:26 AM

Action Rating: 3 out of 5

Monday, October 20, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 57.4°F
Average Humidity: 66%
Chance of Rain: 82%
Wind: 19.5 mph
UV Index: 0.7

Air Quality

AQI: 1 - Good
PM2.5: 3.19 μg/m3
PM10: 3.25 μg/m3
Carbon Monoxide: 140.61 μg/m3
Nitrogen Dioxide: 5.25 μg/m3
Sulphur Dioxide: 4.47 μg/m3
Ozone: 73.48 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:46 AM
Sunset: 6:15 PM
Daylight: 10 hrs 58 mins
Moonrise: 6:27 AM
Moon Transit: 12:07 AM
Moonset: 5:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:16 AM - 3:46 AM
11:37 AM - 2:07 PM

Minor Periods

5:10 PM - 6:40 PM
5:57 AM - 7:27 AM

Action Rating: 4 out of 5

Tuesday, October 21, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 56.7°F
Average Humidity: 56%
Chance of Rain: 0%
Wind: 11.6 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 6.56 μg/m3
PM10: 6.62 μg/m3
Carbon Monoxide: 201.54 μg/m3
Nitrogen Dioxide: 16.22 μg/m3
Sulphur Dioxide: 5.4 μg/m3
Ozone: 41.62 μg/m3

Astronomical

Sunrise: 7:19 AM
Sun Transit: 12:46 AM
Sunset: 6:14 PM
Daylight: 10 hrs 55 mins
Moonrise: 7:28 AM
Moon Transit: 12:49 AM
Moonset: 6:02 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

1:57 AM - 4:27 AM
12:19 AM - 2:49 PM

Minor Periods

5:32 PM - 7:02 PM
6:58 AM - 8:28 AM

Action Rating: 4 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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