Water Temperature of Delaware Bay in Greenwich, NJ

Current Water Temperature

36.7°F

Measurement Time: Thursday, January 1, 2026, 11:18 PM EST

Today's Tides

Low: January 1, 1:26 AM, -0.4 ft
 High: January 1, 7:33 AM, 6.2 ft
Low: January 1, 2:29 PM, -0.4 ft
 High: January 1, 8:07 PM, 4.8 ft

Temperature Locations

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Local Points of Interest

Ship John Shoal Lighthouse; Bombay Hook National Wildlife Refuge; Bridgeton, NJ; Sea Breeze, NJ; Smyrna, DE; Dover, DE

Delaware Bay

Station Name: Ship John Shoal
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet

Sensor Depth: -2 feet

Nearest Address:
Ship John Shoal Lighthouse
Greenwich, NJ 08323
Cumberland County

GPS Coordinates: 39.30500, -75.37500

Nearby Water Temperatures

St. Jones River, Dover, DE (12.4 mi)
Appoquinimink River, Odessa, DE (16.9 mi)
Delaware River, Middletown, DE (17 mi)
Silver Lake Tributary, Townsend, DE (19.9 mi)
Chesapeake & Delaware Canal, Port Penn, DE (20.4 mi)
Murderkill River, Frederica, DE (20.8 mi)
Chesapeake and Delaware Canal, Delaware City, DE (21.6 mi)
Delaware River, New Castle, DE (27.7 mi)
Chesapeake & Delaware Canal, Chesapeake City, MD (27.8 mi)
Beaverdam Branch, Houston, DE (28.6 mi)
Christina River, Newark, DE (29.7 mi)
Christina River, Newport, DE (30.7 mi)
Christina River, Wilmington, DE (31.1 mi)
White Clay Creek, Stanton, DE (31.2 mi)
White Clay Creek, Newark, DE (31.6 mi)

Weather for Greenwich, New Jersey

Current Weather

21°F
Overcast
Overcast
10.6°F
23.6°F
74%
WNW 9.2 mph
13.6 mph
16.2°F
6.8°F
0 in
100%
9 mi
1013 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 36°F
L: 23°F
Light freezing rain
Fri
H: 41°F
L: 21°F
Partly Cloudy
Sat
H: 35°F
L: 24°F
Sunny
Sun
H: 44°F
L: 27°F
Partly Cloudy
Mon
H: 34°F
L: 26°F

Air Quality

AQI: 1 - Good
PM2.5: 5.85 μg/m3
PM10: 5.95 μg/m3
Carbon Monoxide: 183.85 μg/m3
Nitrogen Dioxide: 9.25 μg/m3
Sulphur Dioxide: 12.25 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:05 AM
Sunset: 4:49 PM
Daylight: 9 hrs 28 mins
Moonrise: 2:44 PM
Moon Transit: 10:47 PM
Moonset: 5:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

11:46 AM - 2:16 PM
12:00 AM - 12:00 AM

Minor Periods

2:14 PM - 3:44 PM
5:12 AM - 6:42 AM

Action Rating: 2 out of 5

Thursday, January 1, 2026

Weather Forecast

Sunny
36.3°F
22.8°F
30.4°F
51%
0 in
0%
3%
18.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.57 μg/m3
PM10: 5.7 μg/m3
Carbon Monoxide: 177.21 μg/m3
Nitrogen Dioxide: 10.42 μg/m3
Sulphur Dioxide: 6.14 μg/m3
Ozone: 59.84 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:05 AM
Sunset: 4:49 PM
Daylight: 9 hrs 28 mins
Moonrise: 2:44 PM
Moon Transit: 10:47 PM
Moonset: 5:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

11:46 AM - 2:16 PM
12:00 AM - 12:00 AM

Minor Periods

2:14 PM - 3:44 PM
5:12 AM - 6:42 AM

Action Rating: 2 out of 5

Friday, January 2, 2026

Weather Forecast

Light freezing rain
40.8°F
21.2°F
29.1°F
53%
0.01 in
80%
13%
15 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 6.93 μg/m3
PM10: 7.06 μg/m3
Carbon Monoxide: 188.41 μg/m3
Nitrogen Dioxide: 13.27 μg/m3
Sulphur Dioxide: 10.06 μg/m3
Ozone: 60.8 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:05 AM
Sunset: 4:50 PM
Daylight: 9 hrs 29 mins
Moonrise: 3:51 PM
Moon Transit: 11:54 PM
Moonset: 6:53 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

12:53 AM - 3:23 PM
12:00 AM - 12:00 AM

Minor Periods

3:21 PM - 4:51 PM
6:23 AM - 7:53 AM

Action Rating: 4 out of 5

Saturday, January 3, 2026

Weather Forecast

Partly Cloudy
34.5°F
23.9°F
29°F
54%
0 in
0%
0%
10.1 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 10.53 μg/m3
PM10: 10.61 μg/m3
Carbon Monoxide: 215.97 μg/m3
Nitrogen Dioxide: 19.08 μg/m3
Sulphur Dioxide: 9.21 μg/m3
Ozone: 49.96 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:06 AM
Sunset: 4:51 PM
Daylight: 9 hrs 30 mins
Moonrise: 5:06 PM
Moon Transit: 12:00 AM
Moonset: 7:52 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:58 PM - 4:28 PM

Minor Periods

4:36 PM - 6:06 PM
7:22 AM - 8:52 AM

Action Rating: 6 out of 5

Sunday, January 4, 2026

Weather Forecast

Sunny
43.5°F
26.8°F
32.3°F
55%
0 in
0%
0%
15.2 mph
0.3


Air Quality

AQI: 2 - Moderate
PM2.5: 16.27 μg/m3
PM10: 16.67 μg/m3
Carbon Monoxide: 281.12 μg/m3
Nitrogen Dioxide: 32.45 μg/m3
Sulphur Dioxide: 8.83 μg/m3
Ozone: 36.08 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:06 AM
Sunset: 4:52 PM
Daylight: 9 hrs 31 mins
Moonrise: 6:24 PM
Moon Transit: 12:57 AM
Moonset: 8:39 AM
Moon Phase: Full
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

12:27 AM - 2:57 AM
2:59 PM - 5:29 PM

Minor Periods

5:54 PM - 7:24 PM
8:09 AM - 9:39 AM

Action Rating: 3 out of 5

Monday, January 5, 2026

Weather Forecast

Partly Cloudy
33.5°F
25.7°F
29.9°F
61%
0 in
0%
0%
10.7 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 7.7 μg/m3
PM10: 7.77 μg/m3
Carbon Monoxide: 215.2 μg/m3
Nitrogen Dioxide: 18.22 μg/m3
Sulphur Dioxide: 5.53 μg/m3
Ozone: 49.38 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:07 AM
Sunset: 4:53 PM
Daylight: 9 hrs 31 mins
Moonrise: 7:39 PM
Moon Transit: 1:55 AM
Moonset: 9:15 AM
Moon Phase: Full
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

1:25 AM - 3:55 AM
3:53 PM - 6:23 PM

Minor Periods

7:09 PM - 8:39 PM
8:45 AM - 10:15 AM

Action Rating: 3 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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