Water Temperature of Delaware Bay in Greenwich, NJ

Current Water Temperature

30.2°F

Measurement Time: Sunday, February 8, 2026, 9:36 AM EST

Today's Tides

 High: February 8, 2:15 AM, 5.2 ft
Low: February 8, 8:47 AM, 0.2 ft
 High: February 8, 2:35 PM, 4.6 ft
Low: February 8, 8:55 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, 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

9°F
Sunny
Sunny
-9.8°F
6.8°F
45%
NW 18.8 mph
23.6 mph
-11.1°F
-5.7°F
0 in
0%
9 mi
1025 mbar
0.9

Five Day Weather Forecast

Sunny
Sun
H: 21°F
L: 5°F
Sunny
Mon
H: 30°F
L: 8°F
Partly Cloudy
Tue
H: 37°F
L: 22°F
Partly Cloudy
Wed
H: 39°F
L: 30°F
Partly Cloudy
Thu
H: 34°F
L: 25°F

Air Quality

AQI: 1 - Good
PM2.5: 5.25 μg/m3
PM10: 5.45 μg/m3
Carbon Monoxide: 185.85 μg/m3
Nitrogen Dioxide: 4.75 μg/m3
Sulphur Dioxide: 3.85 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 12:15 AM
Sunset: 5:30 PM
Daylight: 10 hrs 29 mins
Moonrise: 12:52 AM
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 AM
6:54 PM - 9:24 PM

Minor Periods

9:34 AM - 11:04 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

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.


Extreme Cold Warning issued February 7 at 11:38PM EST until February 8 at 12:00PM EST by NWS Mount Holly NJ

Effective: Sat February 7, 2026, 11:38 PM
Expires: Sun February 8, 2026, 7:00 AM

* WHAT...Dangerously cold wind chills as low as 16 below. * WHERE...Portions of New Jersey and southeast Pennsylvania. * WHEN...Until noon EST Sunday. * IMPACTS...The cold wind chills as low as 15 below zero could result in hypothermia or frostbite if precautions are not taken.

Dress in layers including a hat, face mask, and gloves if you must go outside. Monitor the latest forecasts and warnings for updates. 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 8 at 1:59AM EST until February 8 at 12:00PM EST by NWS Mount Holly NJ

Effective: Sun February 8, 2026, 1:59 AM
Expires: Sun February 8, 2026, 12:00 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 16 below. For the Cold Weather Advisory, very cold wind chills as low as 9 below expected. * WHERE...Portions of New Jersey and southeast Pennsylvania. * WHEN...For the Extreme Cold Warning, until noon EST today. For the Cold Weather Advisory, from noon today to 10 AM EST Monday. * IMPACTS...The cold wind chills as low as 15 below zero could result in hypothermia or frostbite if precautions are not taken.

Dress in layers including a hat, face mask, and gloves if you must go outside. Monitor the latest forecasts and warnings for updates. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Cold Weather Advisory issued February 8 at 1:59AM EST until February 9 at 10:00AM EST by NWS Mount Holly NJ

Effective: Sun February 8, 2026, 1:59 AM
Expires: Sun February 8, 2026, 12:00 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 16 below. For the Cold Weather Advisory, very cold wind chills as low as 9 below expected. * WHERE...Portions of New Jersey and southeast Pennsylvania. * WHEN...For the Extreme Cold Warning, until noon EST today. For the Cold Weather Advisory, from noon today to 10 AM EST Monday. * IMPACTS...The cold wind chills as low as 15 below zero could result in hypothermia or frostbite if precautions are not taken.

Dress in layers including a hat, face mask, and gloves if you must go outside. Monitor the latest forecasts and warnings for updates. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Sunday, February 8, 2026

Weather Forecast

Sunny
21.2°F
5.2°F
11.7°F
56%
0 in
0%
0%
20.6 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 4.85 μg/m3
PM10: 5.16 μg/m3
Carbon Monoxide: 188.33 μg/m3
Nitrogen Dioxide: 7.68 μg/m3
Sulphur Dioxide: 3.27 μg/m3
Ozone: 72.04 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 12:15 AM
Sunset: 5:30 PM
Daylight: 10 hrs 29 mins
Moonrise: 12:52 AM
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 AM
6:54 PM - 9:24 PM

Minor Periods

9:34 AM - 11:04 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, February 9, 2026

Weather Forecast

Sunny
29.8°F
7.9°F
18.8°F
66%
0 in
0%
0%
11.2 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 10.78 μg/m3
PM10: 10.9 μg/m3
Carbon Monoxide: 224.65 μg/m3
Nitrogen Dioxide: 15.06 μg/m3
Sulphur Dioxide: 4.14 μg/m3
Ozone: 62.6 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 12:15 AM
Sunset: 5:31 PM
Daylight: 10 hrs 31 mins
Moonrise: 12:55 AM
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 AM
7:41 PM - 10:11 PM

Minor Periods

10:03 AM - 11:33 AM
12:25 AM - 1:55 AM

Action Rating: 2 out of 5

Tuesday, February 10, 2026

Weather Forecast

Partly Cloudy
37.4°F
22.1°F
29.2°F
63%
0 in
0%
0%
7.8 mph
0.5


Air Quality

AQI: 2 - Moderate
PM2.5: 26.89 μg/m3
PM10: 27.29 μg/m3
Carbon Monoxide: 278.65 μg/m3
Nitrogen Dioxide: 27.25 μg/m3
Sulphur Dioxide: 6.23 μg/m3
Ozone: 47.8 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:15 AM
Sunset: 5:33 PM
Daylight: 10 hrs 33 mins
Moonrise: 1:57 AM
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 AM
8:30 PM - 11:00 PM

Minor Periods

10:38 AM - 12:08 AM
1:27 AM - 2:57 AM

Action Rating: 2 out of 5

Wednesday, February 11, 2026

Weather Forecast

Partly Cloudy
39.2°F
30.1°F
35.5°F
79%
0 in
0%
0%
16.8 mph
0.6


Air Quality

AQI: 2 - Moderate
PM2.5: 21.43 μg/m3
PM10: 21.74 μg/m3
Carbon Monoxide: 237.96 μg/m3
Nitrogen Dioxide: 19.51 μg/m3
Sulphur Dioxide: 5.38 μg/m3
Ozone: 57.12 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:15 AM
Sunset: 5:34 PM
Daylight: 10 hrs 36 mins
Moonrise: 2:57 AM
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 AM
9:21 PM - 11:51 PM

Minor Periods

11:20 AM - 12:50 AM
2:27 AM - 3:57 AM

Action Rating: 3 out of 5

Thursday, February 12, 2026

Weather Forecast

Partly Cloudy
33.8°F
24.9°F
28.2°F
69%
0 in
0%
0%
19 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6.39 μg/m3
PM10: 6.4 μg/m3
Carbon Monoxide: 235.93 μg/m3
Nitrogen Dioxide: 13.78 μg/m3
Sulphur Dioxide: 3.83 μg/m3
Ozone: 58.38 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:15 AM
Sunset: 5:35 PM
Daylight: 10 hrs 38 mins
Moonrise: 3:53 AM
Moon Transit: 8:16 AM
Moonset: 12:40 AM
Moon Phase: Waning Crescent
Moon Illumination: 12.2%

Best Times for Fishing or Hunting

Major Periods

7:46 AM - 10:16 AM
12:00 AM - 12:00 AM

Minor Periods

12:10 AM - 1:40 PM
3:23 AM - 4:53 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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