Water Temperature of Delaware Bay in Greenwich, NJ

Current Water Temperature

61.2°F

Measurement Time: Sunday, May 10, 2026, 12:30 PM EDT

Today's Tides

 High: May 10, 4:29 AM, 5.6 ft
Low: May 10, 11:18 AM, 0.7 ft
 High: May 10, 5:14 PM, 5.1 ft
Low: May 10, 11:33 PM, 1.0 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

75.9°F
Sunny
Sunny
77°F
79.7°F
47%
SW 7.4 mph
9.1 mph
80°F
54.9°F
0 in
0%
9 mi
1013 mbar
6

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 87°F
L: 50°F
Patchy rain nearby
Mon
H: 63°F
L: 52°F
Sunny
Tue
H: 64°F
L: 44°F
Moderate rain
Wed
H: 67°F
L: 48°F
Patchy rain nearby
Thu
H: 62°F
L: 49°F

Air Quality

AQI: 1 - Good
PM2.5: 9.95 μg/m3
PM10: 10.85 μg/m3
Carbon Monoxide: 164.85 μg/m3
Nitrogen Dioxide: 2.25 μg/m3
Sulphur Dioxide: 4.45 μg/m3
Ozone: 147 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 12:57 AM
Sunset: 8:04 PM
Daylight: 14 hrs 11 mins
Moonrise: 2:26 AM
Moon Transit: 7:45 AM
Moonset: 1:14 PM
Moon Phase: Last Quarter
Moon Illumination: 26.2%

Best Times for Fishing or Hunting

Major Periods

7:15 AM - 9:45 AM
12:00 AM - 12:00 AM

Minor Periods

12:44 AM - 2:14 PM
1:56 AM - 3:26 AM

Action Rating: 2 out of 5

Dense Fog Advisory issued May 10 at 7:52AM EDT until May 10 at 10:00AM EDT by NWS Mount Holly NJ

Effective: Sun May 10, 2026, 7:52 AM
Expires: Sun May 10, 2026, 10:00 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of central, northern, northwest, and southern New Jersey and east central, northeast, and southeast Pennsylvania. * WHEN...Until 10 AM EDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Fog will gradually dissipate through 10 AM.

If driving be prepared for sudden changes in visibility, slow down, use your headlights, and leave plenty of distance ahead of you.
Sunday, May 10, 2026

Weather Forecast

Patchy rain nearby
86.5°F
49.6°F
67°F
64%
0.02 in
86%
0%
13.2 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 14.38 μg/m3
PM10: 15.43 μg/m3
Carbon Monoxide: 170.29 μg/m3
Nitrogen Dioxide: 11.16 μg/m3
Sulphur Dioxide: 4.49 μg/m3
Ozone: 98.76 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 12:57 AM
Sunset: 8:04 PM
Daylight: 14 hrs 11 mins
Moonrise: 2:26 AM
Moon Transit: 7:45 AM
Moonset: 1:14 PM
Moon Phase: Last Quarter
Moon Illumination: 26.2%

Best Times for Fishing or Hunting

Major Periods

7:15 AM - 9:45 AM
12:00 AM - 12:00 AM

Minor Periods

12:44 AM - 2:14 PM
1:56 AM - 3:26 AM

Action Rating: 2 out of 5

Monday, May 11, 2026

Weather Forecast

Patchy rain nearby
63.4°F
52°F
57.3°F
58%
0.01 in
87%
0%
11.6 mph
3.6


Air Quality

AQI: 1 - Good
PM2.5: 8.77 μg/m3
PM10: 9.34 μg/m3
Carbon Monoxide: 185.41 μg/m3
Nitrogen Dioxide: 11.98 μg/m3
Sulphur Dioxide: 5.13 μg/m3
Ozone: 75.56 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 12:57 AM
Sunset: 8:05 PM
Daylight: 14 hrs 13 mins
Moonrise: 2:50 AM
Moon Transit: 8:30 AM
Moonset: 2:21 PM
Moon Phase: Last Quarter
Moon Illumination: 16.9%

Best Times for Fishing or Hunting

Major Periods

8:00 AM - 10:30 AM
12:00 AM - 12:00 AM

Minor Periods

1:51 PM - 3:21 PM
2:20 AM - 3:50 AM

Action Rating: 2 out of 5

Tuesday, May 12, 2026

Weather Forecast

Sunny
64.3°F
44.1°F
54.3°F
53%
0 in
0%
0%
12.5 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 4.43 μg/m3
PM10: 4.55 μg/m3
Carbon Monoxide: 171.57 μg/m3
Nitrogen Dioxide: 8.96 μg/m3
Sulphur Dioxide: 3.97 μg/m3
Ozone: 75.24 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 12:57 AM
Sunset: 8:06 PM
Daylight: 14 hrs 15 mins
Moonrise: 3:13 AM
Moon Transit: 9:41 PM
Moonset: 3:28 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.3%

Best Times for Fishing or Hunting

Major Periods

9:11 PM - 11:41 PM
9:11 PM - 11:41 PM

Minor Periods

2:58 PM - 4:28 PM
2:43 AM - 4:13 AM

Action Rating: 2 out of 5

Wednesday, May 13, 2026

Weather Forecast

Moderate rain
66.9°F
48.2°F
56.7°F
71%
0.33 in
70%
0%
16.1 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 6.39 μg/m3
PM10: 6.96 μg/m3
Carbon Monoxide: 150.8 μg/m3
Nitrogen Dioxide: 9.08 μg/m3
Sulphur Dioxide: 3.07 μg/m3
Ozone: 90.72 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
62.3°F
48.6°F
56.4°F
72%
0.06 in
67%
0%
16.1 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 7.2 μg/m3
PM10: 7.71 μg/m3
Carbon Monoxide: 157.17 μg/m3
Nitrogen Dioxide: 5.18 μg/m3
Sulphur Dioxide: 2.69 μg/m3
Ozone: 97.23 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

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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