Water Temperature of Delaware Bay in Greenwich, NJ
Current Water Temperature
Measurement Time: Saturday, February 7, 2026, 9:18 PM EST
Today's Tides
High: February 7, 1:30 AM, 5.3 ft
Low: February 7, 7:58 AM, 0.0 ft
High: February 7, 1:47 PM, 4.9 ft
Low: February 7, 8:12 PM, -0.1 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, DEStation 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

Five Day Weather Forecast

Sat
H: 25°F
L: 7°F

Sun
H: 22°F
L: 4°F

Mon
H: 28°F
L: 7°F

Tue
H: 38°F
L: 19°F

Wed
H: 38°F
L: 29°F
Air Quality
Nitrogen Dioxide: 6.75 μg/m3
Sulphur Dioxide: 3.05 μg/m3
Ozone: 75 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 5:29 PM
Daylight: 10 hrs 27 mins
Moon Transit: 4:18 AM
Moonset: 9:38 AM
Moon Phase: Waning Gibbous
Moon Illumination: 63.7%
Best Times for Fishing or Hunting
Major Periods
3:48 AM - 6:18 AM6:10 PM - 8:40 PM
Minor Periods
12:00 AM - 12:00 AM9:08 AM - 10:38 AM
Action Rating: 2 out of 5
Extreme Cold Warning issued February 7 at 2:08AM EST until February 8 at 12:00PM EST by NWS Mount Holly NJ
Effective: Sat February 7, 2026, 2:08 AM
Expires: Sat February 7, 2026, 6:00 PM
* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 12 below. For the High Wind Warning, northwest winds 15 to 25 mph with gusts up to 60 mph. * WHERE...Atlantic, Atlantic Coastal Cape May, Cape May, Coastal Atlantic, Coastal Ocean, Cumberland, Ocean, Salem, and Southeastern Burlington Counties. * WHEN...For the Extreme Cold Warning, until noon EST Sunday. For the High Wind Warning, until midnight EST tonight. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken.
Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Secure outdoor objects. Dress in layers including a hat, face mask, and gloves if you must go outside. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold.
High Wind Warning issued February 7 at 2:08AM EST until February 8 at 12:00AM EST by NWS Mount Holly NJ
Effective: Sat February 7, 2026, 2:08 AM
Expires: Sat February 7, 2026, 6:00 PM
* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 12 below. For the High Wind Warning, northwest winds 15 to 25 mph with gusts up to 60 mph. * WHERE...Atlantic, Atlantic Coastal Cape May, Cape May, Coastal Atlantic, Coastal Ocean, Cumberland, Ocean, Salem, and Southeastern Burlington Counties. * WHEN...For the Extreme Cold Warning, until noon EST Sunday. For the High Wind Warning, until midnight EST tonight. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken.
Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Secure outdoor objects. Dress in layers including a hat, face mask, and gloves if you must go outside. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold.
Extreme Cold Warning issued February 7 at 7:11PM EST until February 8 at 12:00PM EST by NWS Mount Holly NJ
Effective: Sat February 7, 2026, 7:11 PM
Expires: Sun February 8, 2026, 8:15 AM
* WHAT...For the Wind Advisory, northwest winds 10 to 20 mph with gusts up to 45 mph. For the Extreme Cold Warning, dangerously cold wind chills as low as 13 below. * WHERE...Atlantic, Atlantic Coastal Cape May, Cape May, Coastal Atlantic, Coastal Ocean, Cumberland, Ocean, Salem, and Southeastern Burlington Counties. * WHEN...For the Wind Advisory, until midnight EST tonight. For the Extreme Cold Warning, until noon EST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken.
Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Secure outdoor objects. Dress in layers including a hat, face mask, and gloves if you must go outside. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold.
Wind Advisory issued February 7 at 7:11PM EST until February 8 at 12:00AM EST by NWS Mount Holly NJ
Effective: Sat February 7, 2026, 7:11 PM
Expires: Sun February 8, 2026, 8:15 AM
* WHAT...For the Wind Advisory, northwest winds 10 to 20 mph with gusts up to 45 mph. For the Extreme Cold Warning, dangerously cold wind chills as low as 13 below. * WHERE...Atlantic, Atlantic Coastal Cape May, Cape May, Coastal Atlantic, Coastal Ocean, Cumberland, Ocean, Salem, and Southeastern Burlington Counties. * WHEN...For the Wind Advisory, until midnight EST tonight. For the Extreme Cold Warning, until noon EST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken.
Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Secure outdoor objects. Dress in layers including a hat, face mask, and gloves if you must go outside. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold.
High Wind Warning issued February 7 at 2:08AM EST until February 8 at 12:00AM EST by NWS Mount Holly NJ
Effective: Sat February 7, 2026, 2:08 AM
Expires: Sat February 7, 2026, 6:00 PM
* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 10 below. For the High Wind Warning, northwest winds 20 to 30 mph with gusts up to 60 mph. * WHERE...Kent, New Castle, Delaware Beaches, and Inland Sussex Counties. * WHEN...For the Extreme Cold Warning, until noon EST Sunday. For the High Wind Warning, until midnight EST tonight. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken.
Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Secure outdoor objects. Dress in layers including a hat, face mask, and gloves if you must go outside. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold.
Weather Forecast
Air Quality
Nitrogen Dioxide: 16.13 μg/m3
Sulphur Dioxide: 5.79 μg/m3
Ozone: 58.16 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 5:29 PM
Daylight: 10 hrs 27 mins
Moon Transit: 4:18 AM
Moonset: 9:38 AM
Moon Phase: Waning Gibbous
Moon Illumination: 63.7%
Best Times for Fishing or Hunting
Major Periods
3:48 AM - 6:18 AM6:10 PM - 8:40 PM
Minor Periods
12:00 AM - 12:00 AM9:08 AM - 10:38 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 7.45 μg/m3
Sulphur Dioxide: 3.29 μg/m3
Ozone: 73.24 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 5:30 PM
Daylight: 10 hrs 29 mins
Moon Transit: 5:01 AM
Moonset: 10:04 AM
Moon Phase: Last Quarter
Moon Illumination: 52.5%
Best Times for Fishing or Hunting
Major Periods
4:31 AM - 7:01 AM6:54 PM - 9:24 PM
Minor Periods
9:34 AM - 11:04 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 14.05 μg/m3
Sulphur Dioxide: 3.97 μg/m3
Ozone: 63 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 5:31 PM
Daylight: 10 hrs 31 mins
Moon Transit: 5:46 AM
Moonset: 10:33 AM
Moon Phase: Last Quarter
Moon Illumination: 41.2%
Best Times for Fishing or Hunting
Major Periods
5:16 AM - 7:46 AM7:41 PM - 10:11 PM
Minor Periods
10:03 AM - 11:33 AM12:25 AM - 1:55 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 26.68 μg/m3
Sulphur Dioxide: 5.83 μg/m3
Ozone: 47.12 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 5:33 PM
Daylight: 10 hrs 33 mins
Moon Transit: 6:34 AM
Moonset: 11:08 AM
Moon Phase: Last Quarter
Moon Illumination: 30.3%
Best Times for Fishing or Hunting
Major Periods
6:04 AM - 8:34 AM8:30 PM - 11:00 PM
Minor Periods
10:38 AM - 12:08 AM1:27 AM - 2:57 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 22.56 μg/m3
Sulphur Dioxide: 4.87 μg/m3
Ozone: 47.77 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 5:34 PM
Daylight: 10 hrs 36 mins
Moon Transit: 7:24 AM
Moonset: 11:50 AM
Moon Phase: Last Quarter
Moon Illumination: 20.5%
Best Times for Fishing or Hunting
Major Periods
6:54 AM - 9:24 AM9:21 PM - 11:51 PM
Minor Periods
11:20 AM - 12:50 AM2:27 AM - 3:57 AM
Action Rating: 3 out of 5
