Water Temperature of Delaware Bay in Greenwich, NJ

Current Water Temperature

61.3°F

Measurement Time: Wednesday, May 13, 2026, 1:48 AM EDT

Today's Tides

Low: May 13, 1:36 AM, 0.6 ft
 High: May 13, 7:27 AM, 5.6 ft
Low: May 13, 1:53 PM, 0.3 ft
 High: May 13, 7:56 PM, 6.3 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

50.5°F
Clear
Clear
46.5°F
54.3°F
83%
S 10.5 mph
19.3 mph
52°F
46°F
0 in
0%
9 mi
1020 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Wed
H: 77°F
L: 52°F
Patchy rain nearby
Thu
H: 62°F
L: 49°F
Partly Cloudy
Fri
H: 62°F
L: 47°F
Patchy rain nearby
Sat
H: 74°F
L: 50°F
Sunny
Sun
H: 82°F
L: 61°F

Air Quality

PM2.5: 8.55 μg/m3
PM10: 9.15 μg/m3
Carbon Monoxide: 153.85 μg/m3
Nitrogen Dioxide: 4.05 μg/m3
Sulphur Dioxide: 3.45 μg/m3
Ozone: 117 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 12:57 AM
Sunset: 8:07 PM
Daylight: 14 hrs 17 mins
Moonrise: 3:37 AM
Moon Transit: 10:01 AM
Moonset: 4:39 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:31 AM - 12:01 AM

Minor Periods

4:09 PM - 5:39 PM
3:07 AM - 4:37 AM

Action Rating: 2 out of 5

Wednesday, May 13, 2026

Weather Forecast

Patchy rain nearby
77.4°F
52.3°F
62.5°F
62%
0.14 in
90%
0%
20.6 mph
6.5


Air Quality

AQI: 1 - Good
PM2.5: 7.23 μg/m3
PM10: 7.85 μg/m3
Carbon Monoxide: 148.65 μg/m3
Nitrogen Dioxide: 5.74 μg/m3
Sulphur Dioxide: 2.93 μg/m3
Ozone: 112.04 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 12:57 AM
Sunset: 8:07 PM
Daylight: 14 hrs 17 mins
Moonrise: 3:37 AM
Moon Transit: 10:01 AM
Moonset: 4:39 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:31 AM - 12:01 AM

Minor Periods

4:09 PM - 5:39 PM
3:07 AM - 4:37 AM

Action Rating: 2 out of 5

Thursday, May 14, 2026

Weather Forecast

Patchy rain nearby
62.1°F
48.9°F
55.4°F
73%
0.19 in
88%
0%
17.2 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 6.31 μg/m3
PM10: 7.09 μg/m3
Carbon Monoxide: 157.13 μg/m3
Nitrogen Dioxide: 5.04 μg/m3
Sulphur Dioxide: 2.99 μg/m3
Ozone: 98.8 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 12:57 AM
Sunset: 8:08 PM
Daylight: 14 hrs 19 mins
Moonrise: 4:03 AM
Moon Transit: 10:51 AM
Moonset: 5:53 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:21 AM - 12:51 AM

Minor Periods

5:23 PM - 6:53 PM
3:33 AM - 5:03 AM

Action Rating: 2 out of 5

Friday, May 15, 2026

Weather Forecast

Partly Cloudy
62°F
47.4°F
54.5°F
68%
0 in
0%
0%
14.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.83 μg/m3
PM10: 3.84 μg/m3
Carbon Monoxide: 170.21 μg/m3
Nitrogen Dioxide: 7.65 μg/m3
Sulphur Dioxide: 4.13 μg/m3
Ozone: 68.24 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 12:57 AM
Sunset: 8:08 PM
Daylight: 14 hrs 21 mins
Moonrise: 4:33 AM
Moon Transit: 11:45 AM
Moonset: 7:11 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:48 AM - 3:18 AM
11:15 AM - 1:45 PM

Minor Periods

6:41 PM - 8:11 PM
4:03 AM - 5:33 AM

Action Rating: 5 out of 5

Saturday, May 16, 2026

Weather Forecast

Patchy rain nearby
73.9°F
49.9°F
62.3°F
70%
0.04 in
89%
0%
9.6 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 5.95 μg/m3
PM10: 5.97 μg/m3
Carbon Monoxide: 207.85 μg/m3
Nitrogen Dioxide: 16.17 μg/m3
Sulphur Dioxide: 4.45 μg/m3
Ozone: 52.08 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 12:57 AM
Sunset: 8:09 PM
Daylight: 14 hrs 22 mins
Moonrise: 5:09 AM
Moon Transit: 12:44 AM
Moonset: 8:32 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

1:46 AM - 4:16 AM
12:14 AM - 2:44 PM

Minor Periods

8:02 PM - 9:32 PM
4:39 AM - 6:09 AM

Action Rating: 5 out of 5

Sunday, May 17, 2026

Weather Forecast

Sunny
81.5°F
60.7°F
68.3°F
79%
0 in
0%
0%
7.6 mph
6


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: 5:46 AM
Sun Transit: 12:57 AM
Sunset: 8:10 PM
Daylight: 14 hrs 24 mins
Moonrise: 5:55 AM
Moon Transit: 1:48 PM
Moonset: 9:50 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

2:48 AM - 5:18 AM
1:18 PM - 3:48 PM

Minor Periods

9:20 PM - 10:50 PM
5:25 AM - 6:55 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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