Water Temperature of Delaware Bay in Greenwich, NJ
Current Water Temperature
not available at this time.
Today's Tides
High: October 29, 3:46 AM, 4.83 ft
Low: October 29, 9:58 AM, 1.13 ft
High: October 29, 4:02 PM, 5.87 ft
Low: October 29, 11:00 PM, 1.04 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, DESponsored Content
Station Name: Ship John Shoal
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 0 feet / 0 meters
Sensor Depth: -2.2 feet / -0.7 meters
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 (17.0 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

Humidity: 77%
Feels Like: 49.7°F
Wind: ENE 15 mph
Wind Gusts: 20.3 mph
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0.2
Five Day Weather Forecast

Wed
H: 59°F
L: 46°F

Thu
H: 57°F
L: 49°F

Fri
H: 57°F
L: 46°F

Sat
H: 60°F
L: 43°F

Sun
H: 60°F
L: 43°F
Air Quality
Nitrogen Dioxide: 18.05 μg/m3
Sulphur Dioxide: 4.25 μg/m3
Ozone: 46 μg/m3
Astronomical
Sun Transit: 12:45 AM
Sunset: 6:03 PM
Daylight: 10 hrs 37 mins
Moon Transit: 7:21 PM
Moonset: 12:15 AM
Moon Phase: First Quarter
Moon Illumination: 52.5%
Best Times for Fishing or Hunting
Major Periods
8:27 AM - 10:57 AM6:51 PM - 9:21 PM
Minor Periods
1:58 PM - 3:28 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Coastal Flood Advisory issued October 29 at 4:20AM EDT until October 30 at 8:00PM EDT by NWS Mount Holly NJ
Effective: Wed October 29, 2025, 8:20 AM
Expires: Wed October 29, 2025, 10:00 PM
* WHAT...Up to one foot of inundation above ground level in low- lying areas near shorelines and tidal waterways. * WHERE...Kent. * WHEN...Until 8 PM EDT Thursday. * IMPACTS...At this level, flooding begins on the most vulnerable roads in coastal and bayside communities, and along inland tidal waterways. Some partial or full road closures are possible.
A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge.
Coastal Flood Advisory issued October 29 at 4:20AM EDT until October 30 at 8:00PM EDT by NWS Mount Holly NJ
Effective: Wed October 29, 2025, 8:20 AM
Expires: Wed October 29, 2025, 10:00 PM
* WHAT...Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...In Delaware, Inland Sussex and Delaware Beaches. In New Jersey, Cape May and Atlantic Coastal Cape May. * WHEN...From noon today to 8 PM EDT Thursday. * IMPACTS...At this level, flooding begins on the most vulnerable roads in coastal and bayside communities, and along inland tidal waterways. Some partial or full road closures are possible.
A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge.
Wind Advisory issued October 29 at 2:08PM EDT until October 30 at 3:00PM EDT by NWS Mount Holly NJ
Effective: Wed October 29, 2025, 6:08 PM
Expires: Thu October 30, 2025, 7:15 AM
* WHAT...East winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Atlantic, Atlantic Coastal Cape May, Cape May, and Coastal Atlantic Counties. * WHEN...From 4 AM to 3 PM EDT Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
Coastal Flood Advisory issued October 29 at 4:20AM EDT until October 30 at 8:00PM EDT by NWS Mount Holly NJ
Effective: Wed October 29, 2025, 8:20 AM
Expires: Wed October 29, 2025, 10:00 PM
* WHAT...Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Ocean, Atlantic, Coastal Atlantic, Coastal Ocean and Southeastern Burlington. * WHEN...From noon today to 8 PM EDT Thursday. * IMPACTS...At this level, flooding begins on the most vulnerable roads in coastal and bayside communities, and along inland tidal waterways. Some partial or full road closures are possible.
A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge.
Wind Advisory issued October 29 at 2:08PM EDT until October 30 at 5:00PM EDT by NWS Mount Holly NJ
Effective: Wed October 29, 2025, 6:08 PM
Expires: Thu October 30, 2025, 7:15 AM
* WHAT...East winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Eastern Monmouth, Western Monmouth, Coastal Ocean, Ocean, and Southeastern Burlington Counties. * WHEN...From 6 AM to 5 PM EDT Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
Weather Forecast
Average Temperature: 52°F
Average Humidity: 78%
Wind: 17.7 mph
UV Index: 0.4
Air Quality
Nitrogen Dioxide: 14.54 μg/m3
Sulphur Dioxide: 4.51 μg/m3
Ozone: 45.96 μg/m3
Astronomical
Sun Transit: 12:45 AM
Sunset: 6:03 PM
Daylight: 10 hrs 37 mins
Moon Transit: 7:21 PM
Moonset: 12:15 AM
Moon Phase: First Quarter
Moon Illumination: 52.5%
Best Times for Fishing or Hunting
Major Periods
8:27 AM - 10:57 AM6:51 PM - 9:21 PM
Minor Periods
1:58 PM - 3:28 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 53.4°F
Average Humidity: 93%
Wind: 23.9 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 10.51 μg/m3
Sulphur Dioxide: 2.89 μg/m3
Ozone: 60.2 μg/m3
Astronomical
Sun Transit: 12:45 AM
Sunset: 6:02 PM
Daylight: 10 hrs 35 mins
Moon Transit: 8:09 PM
Moonset: 12:22 AM
Moon Phase: First Quarter
Moon Illumination: 63.7%
Best Times for Fishing or Hunting
Major Periods
9:16 AM - 11:46 AM7:39 PM - 10:09 PM
Minor Periods
2:27 PM - 3:57 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 51.5°F
Average Humidity: 73%
Wind: 24.4 mph
UV Index: 0.5
Air Quality
Nitrogen Dioxide: 6.95 μg/m3
Sulphur Dioxide: 4.11 μg/m3
Ozone: 68.32 μg/m3
Astronomical
Sun Transit: 12:45 AM
Sunset: 6:01 PM
Daylight: 10 hrs 33 mins
Moon Transit: 8:56 PM
Moonset: 1:30 AM
Moon Phase: First Quarter
Moon Illumination: 74.1%
Best Times for Fishing or Hunting
Major Periods
10:04 AM - 12:34 AM8:26 PM - 10:56 PM
Minor Periods
2:53 PM - 4:23 PM1:00 AM - 2:30 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 51.3°F
Average Humidity: 60%
Wind: 18.3 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 8.5 μg/m3
Sulphur Dioxide: 5.2 μg/m3
Ozone: 69.36 μg/m3
Astronomical
Sun Transit: 12:45 AM
Sunset: 6:00 PM
Daylight: 10 hrs 30 mins
Moon Transit: 9:44 PM
Moonset: 2:40 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 83.4%
Best Times for Fishing or Hunting
Major Periods
10:51 AM - 1:21 PM9:14 PM - 11:44 PM
Minor Periods
3:18 PM - 4:48 PM2:10 AM - 3:40 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 50.2°F
Average Humidity: 64%
Wind: 6.7 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 20.37 μg/m3
Sulphur Dioxide: 5.38 μg/m3
Ozone: 38.92 μg/m3
Astronomical
Sun Transit: 12:45 AM
Sunset: 5:59 PM
Daylight: 10 hrs 28 mins
Moon Transit: 12:31 AM
Moonset: 3:51 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.9%
Best Times for Fishing or Hunting
Major Periods
11:38 AM - 2:08 PM12:01 AM - 2:31 PM
Minor Periods
3:43 PM - 5:13 PM3:21 AM - 4:51 AM
Action Rating: 2 out of 5
