Water Temperature of Delaware Bay in Greenwich, NJ

Current Water Temperature

30.4°F

Measurement Time: Thursday, February 5, 2026, 6:42 PM EST

Today's Tides

 High: February 5, 12:03 AM, 5.4 ft
Low: February 5, 6:25 AM, -0.5 ft
 High: February 5, 12:19 PM, 5.6 ft
Low: February 5, 6:52 PM, -0.5 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

28°F
Clear
Clear
22.2°F
29.3°F
48%
N 5.1 mph
9.4 mph
24.9°F
21.5°F
0 in
0%
9 mi
1015 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 32°F
L: 18°F
Partly Cloudy
Fri
H: 33°F
L: 14°F
Overcast
Sat
H: 25°F
L: 7°F
Partly Cloudy
Sun
H: 17°F
L: 5°F
Cloudy
Mon
H: 30°F
L: 17°F

Air Quality

AQI: 1 - Good
PM2.5: 37.05 μg/m3
PM10: 37.85 μg/m3
Carbon Monoxide: 423.85 μg/m3
Nitrogen Dioxide: 63.55 μg/m3
Sulphur Dioxide: 7.75 μg/m3
Ozone: 10 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:15 AM
Sunset: 5:27 PM
Daylight: 10 hrs 22 mins
Moonrise: 9:46 PM
Moon Transit: 2:53 AM
Moonset: 8:54 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:23 AM - 4:53 AM
4:45 PM - 7:15 PM

Minor Periods

9:16 PM - 10:46 PM
8:24 AM - 9:54 AM

Action Rating: 2 out of 5

High Wind Watch issued February 5 at 1:12PM EST until February 7 at 9:00PM EST by NWS Mount Holly NJ

Effective: Thu February 5, 2026, 1:12 PM
Expires: Fri February 6, 2026, 6:00 AM

* WHAT...For the High Wind Watch, northwest winds 25 to 35 mph with gusts up to 60 mph possible. For the Extreme Cold Watch, dangerously cold wind chills as low as 15 below possible. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, and southern New Jersey. * WHEN...For the High Wind Watch, from Saturday morning through Saturday evening. For the Extreme Cold Watch, from Saturday afternoon through Sunday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken.

Monitor the latest forecasts and warnings for updates. Dress in layers including a hat, face mask, and gloves if you must go outside.


Extreme Cold Watch issued February 5 at 1:12PM EST until February 8 at 10:00AM EST by NWS Mount Holly NJ

Effective: Thu February 5, 2026, 1:12 PM
Expires: Fri February 6, 2026, 6:00 AM

* WHAT...For the High Wind Watch, northwest winds 25 to 35 mph with gusts up to 60 mph possible. For the Extreme Cold Watch, dangerously cold wind chills as low as 15 below possible. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, and southern New Jersey. * WHEN...For the High Wind Watch, from Saturday morning through Saturday evening. For the Extreme Cold Watch, from Saturday afternoon through Sunday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken.

Monitor the latest forecasts and warnings for updates. Dress in layers including a hat, face mask, and gloves if you must go outside.


Extreme Cold Watch issued February 5 at 1:12PM EST until February 8 at 10:00AM EST by NWS Mount Holly NJ

Effective: Thu February 5, 2026, 1:12 PM
Expires: Fri February 6, 2026, 6:00 AM

* WHAT...Dangerously cold wind chills as low as 15 below possible. * WHERE...Portions of central, northern, northwest, and southern New Jersey and southeast Pennsylvania. * WHEN...From Saturday afternoon through Sunday morning. * IMPACTS...The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken.

Dress in layers including a hat, face mask, and gloves if you must go outside.


Extreme Cold Watch issued February 5 at 1:07PM EST until February 8 at 10:00AM EST by NWS Baltimore MD/Washington DC

Effective: Thu February 5, 2026, 1:07 PM
Expires: Thu February 5, 2026, 10:00 PM

* WHAT...Dangerously cold wind chills as low as 0 to 10 degrees below zero possible east of the Blue Ridge, and as low as 15 degrees below zero west of the Blue Ridge. * WHERE...Portions of DC, central, north central, northeast, and northern Maryland, northern, northwest, and western Virginia, and eastern and panhandle West Virginia. * WHEN...From late Friday night through Sunday morning. * IMPACTS...The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. * ADDITIONAL DETAILS...Wind chills will remain at or below zero during the day on Saturday due to windy conditions and cold temperatures.

Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.


High Wind Watch issued February 5 at 1:12PM EST until February 7 at 9:00PM EST by NWS Mount Holly NJ

Effective: Thu February 5, 2026, 1:12 PM
Expires: Fri February 6, 2026, 6:00 AM

* WHAT...For the High Wind Watch, northwest winds 25 to 35 mph with gusts up to 60 mph possible. For the Extreme Cold Watch, dangerously cold wind chills as low as 10 below possible. * WHERE...Kent MD County. * WHEN...For the High Wind Watch, from Saturday morning through Saturday evening. For the Extreme Cold Watch, from Saturday afternoon through Sunday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could 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.

Monitor the latest forecasts and warnings for updates. Dress in layers including a hat, face mask, and gloves if you must go outside.


Extreme Cold Watch issued February 5 at 1:12PM EST until February 8 at 10:00AM EST by NWS Mount Holly NJ

Effective: Thu February 5, 2026, 1:12 PM
Expires: Fri February 6, 2026, 6:00 AM

* WHAT...For the High Wind Watch, northwest winds 25 to 35 mph with gusts up to 60 mph possible. For the Extreme Cold Watch, dangerously cold wind chills as low as 10 below possible. * WHERE...Kent MD County. * WHEN...For the High Wind Watch, from Saturday morning through Saturday evening. For the Extreme Cold Watch, from Saturday afternoon through Sunday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could 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.

Monitor the latest forecasts and warnings for updates. Dress in layers including a hat, face mask, and gloves if you must go outside.


Thursday, February 5, 2026

Weather Forecast

Sunny
32.2°F
17.6°F
25.1°F
73%
0 in
0%
0%
9.2 mph
0.5


Air Quality

AQI: 2 - Moderate
PM2.5: 18.4 μg/m3
PM10: 18.63 μg/m3
Carbon Monoxide: 303.45 μg/m3
Nitrogen Dioxide: 30.28 μg/m3
Sulphur Dioxide: 5.21 μg/m3
Ozone: 44.6 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:15 AM
Sunset: 5:27 PM
Daylight: 10 hrs 22 mins
Moonrise: 9:46 PM
Moon Transit: 2:53 AM
Moonset: 8:54 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:23 AM - 4:53 AM
4:45 PM - 7:15 PM

Minor Periods

9:16 PM - 10:46 PM
8:24 AM - 9:54 AM

Action Rating: 2 out of 5

Friday, February 6, 2026

Weather Forecast

Partly Cloudy
33.4°F
13.8°F
24.5°F
80%
0 in
0%
4%
6.3 mph
0.4


Air Quality

AQI: 2 - Moderate
PM2.5: 26.76 μg/m3
PM10: 27.33 μg/m3
Carbon Monoxide: 355.41 μg/m3
Nitrogen Dioxide: 45.7 μg/m3
Sulphur Dioxide: 6.89 μg/m3
Ozone: 32.32 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:15 AM
Sunset: 5:28 PM
Daylight: 10 hrs 24 mins
Moonrise: 10:50 PM
Moon Transit: 3:35 AM
Moonset: 9:15 AM
Moon Phase: Waning Gibbous
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

3:05 AM - 5:35 AM
5:27 PM - 7:57 PM

Minor Periods

10:20 PM - 11:50 PM
8:45 AM - 10:15 AM

Action Rating: 3 out of 5

Saturday, February 7, 2026

Weather Forecast

Overcast
25.2°F
7.3°F
19.1°F
71%
0 in
0%
0%
27.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 11.83 μg/m3
PM10: 11.96 μg/m3
Carbon Monoxide: 233.13 μg/m3
Nitrogen Dioxide: 18.02 μg/m3
Sulphur Dioxide: 5.68 μg/m3
Ozone: 55.28 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 12:15 AM
Sunset: 5:29 PM
Daylight: 10 hrs 27 mins
Moonrise: 11:52 PM
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 AM
6:10 PM - 8:40 PM

Minor Periods

12:00 AM - 12:00 AM
9:08 AM - 10:38 AM

Action Rating: 2 out of 5

Sunday, February 8, 2026

Weather Forecast

Partly Cloudy
17.4°F
4.6°F
11°F
62%
0 in
0%
0%
20.4 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 5.17 μg/m3
PM10: 5.27 μg/m3
Carbon Monoxide: 179.99 μg/m3
Nitrogen Dioxide: 9.37 μg/m3
Sulphur Dioxide: 3.67 μg/m3
Ozone: 74.16 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

Cloudy
30.1°F
17°F
23.3°F
71%
0 in
0%
0%
5.8 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 6.77 μg/m3
PM10: 6.9 μg/m3
Carbon Monoxide: 203.27 μg/m3
Nitrogen Dioxide: 13.9 μg/m3
Sulphur Dioxide: 3.27 μg/m3
Ozone: 66.62 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

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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