Water Temperature of Delaware Bay in Greenwich, NJ

Current Water Temperature

81.9°F

Measurement Time: Friday, July 17, 2026, 12:00 AM EDT

Today's Tides

High: July 17, 12:35 AM, 6.8 ft
Low: July 17, 7:22 AM, -0.2 ft
High: July 17, 1:11 PM, 5.8 ft
Low: July 17, 7:29 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

82°F

Conditions: Mist

Feels Like: 87.1°F

Heat Index: 82.8°F

Humidity: 72%

Wind: NNE 5.4 mph

Wind Gusts: 11.3 mph

Wind Chill: 79.3°F

Dew Point: 69°F

Precipitation: 0 in

Cloud Cover: 100%

Visibility: 4 mi

Air Pressure: 1014 mbar

UV Index: 0

Five Day Weather Forecast

Fri
H: 90°F
L: 71°F

Sat
H: 84°F
L: 70°F

Sun
H: 84°F
L: 68°F

Mon
H: 82°F
L: 60°F

Tue
H: 85°F
L: 67°F

Air Quality

AQI: 1 - Good

PM2.5: 29.2 μg/m3

PM10: 30 μg/m3

Carbon Monoxide: 167 μg/m3
Nitrogen Dioxide: 13.7 μg/m3
Sulphur Dioxide: 2.2 μg/m3
Ozone: 69 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:07 PM
Sunset: 8:26 PM
Daylight: 14 hrs 38 mins

Moonrise: 9:31 AM
Moon Transit: 4:09 PM
Moonset: 10:36 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

5:16 AM - 7:46 AM
3:39 PM - 6:09 PM

Minor Periods

10:06 PM - 11:36 PM
9:01 AM - 10:31 AM

Action Rating: 2 out of 5

Air Quality Alert issued July 15 at 3:45PM EDT by NWS Mount Holly NJ

Effective: Wed July 15, 2026, 3:45 PM
Expires: Fri July 17, 2026, 12:00 AM

The Delaware Department of Natural Resources and Environmental Control has issued a code orange air quality alert Thursday for Kent County Delaware. A code orange air quality alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children...people suffering from asthma... heart disease or other lung diseases...and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles...visit http://www.dnrec.delaware.gov

Air Quality Alert issued July 15 at 3:45PM EDT by NWS Mount Holly NJ

Effective: Wed July 15, 2026, 3:45 PM
Expires: Fri July 17, 2026, 12:00 AM

The New Jersey Department of Environmental Protection has issued a code red air quality alert Thursday for Salem and Cumberland Counties. A code red air quality alert means that air pollution concentrations within the region are unhealthful for the general population. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles...visit http://www.state.nj.us/dep/

Friday, July 17, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 90.3°F

Low Temperature: 71.4°F

Average Temperature: 79.8°F

Average Humidity: 58%

Precipitation: 0 in

Chance of Rain: 3%

Chance of Snow: 0%

Maximum Wind: 7.6 mph

UV Index: 5.4

Air Quality

AQI: 2 - Moderate

PM2.5: 29.82 μg/m3

PM10: 30.72 μg/m3

Carbon Monoxide: 186.83 μg/m3
Nitrogen Dioxide: 10.99 μg/m3
Sulphur Dioxide: 2.26 μg/m3
Ozone: 99.71 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:07 PM
Sunset: 8:26 PM
Daylight: 14 hrs 38 mins

Moonrise: 9:31 AM
Moon Transit: 4:09 PM
Moonset: 10:36 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

5:16 AM - 7:46 AM
3:39 PM - 6:09 PM

Minor Periods

10:06 PM - 11:36 PM
9:01 AM - 10:31 AM

Action Rating: 2 out of 5

Saturday, July 18, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 84.2°F

Low Temperature: 70.3°F

Average Temperature: 75.3°F

Average Humidity: 82%

Precipitation: 1.26 in

Chance of Rain: 81%

Chance of Snow: 0%

Maximum Wind: 13.9 mph

UV Index: 5.7

Air Quality

AQI: 2 - Moderate

PM2.5: 18.65 μg/m3

PM10: 19.95 μg/m3

Carbon Monoxide: 151.21 μg/m3
Nitrogen Dioxide: 6.35 μg/m3
Sulphur Dioxide: 0.92 μg/m3
Ozone: 93.83 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:07 PM
Sunset: 8:26 PM
Daylight: 14 hrs 36 mins

Moonrise: 10:40 AM
Moon Transit: 4:54 PM
Moonset: 10:59 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

6:03 AM - 8:33 AM
4:24 PM - 6:54 PM

Minor Periods

10:29 PM - 11:59 PM
10:10 AM - 11:40 AM

Action Rating: 3 out of 5

Sunday, July 19, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 84°F

Low Temperature: 68.2°F

Average Temperature: 76.7°F

Average Humidity: 72%

Precipitation: 0.02 in

Chance of Rain: 36%

Chance of Snow: 0%

Maximum Wind: 13.6 mph

UV Index: 7.4

Air Quality

AQI: 1 - Good

PM2.5: 6.92 μg/m3

PM10: 7 μg/m3

Carbon Monoxide: 155.11 μg/m3
Nitrogen Dioxide: 5.91 μg/m3
Sulphur Dioxide: 1.39 μg/m3
Ozone: 87.83 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:07 PM
Sunset: 8:25 PM
Daylight: 14 hrs 35 mins

Moonrise: 11:46 AM
Moon Transit: 5:38 PM
Moonset: 11:21 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

6:47 AM - 9:17 AM
5:08 PM - 7:38 PM

Minor Periods

12:00 AM - 12:00 AM
11:16 AM - 12:46 AM

Action Rating: 2 out of 5

Monday, July 20, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 82°F

Low Temperature: 59.9°F

Average Temperature: 70.7°F

Average Humidity: 54%

Precipitation: 0 in

Chance of Rain: 3%

Chance of Snow: 0%

Maximum Wind: 10.5 mph

UV Index: 9.1

Air Quality

AQI: 1 - Good

PM2.5: 9.96 μg/m3

PM10: 10.42 μg/m3

Carbon Monoxide: 210.25 μg/m3
Nitrogen Dioxide: 9.38 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 78.21 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:07 PM
Sunset: 8:24 PM
Daylight: 14 hrs 33 mins

Moonrise: 12:50 AM
Moon Transit: 6:22 PM
Moonset: 12:21 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

7:30 AM - 10:00 AM
5:52 PM - 8:22 PM

Minor Periods

12:20 AM - 1:50 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, July 21, 2026

Weather Forecast

Conditions: Partly Cloudy

High Temperature: 85.2°F

Low Temperature: 66.9°F

Average Temperature: 77.1°F

Average Humidity: 75%

Precipitation: 0 in

Chance of Rain: 17%

Chance of Snow: 0%

Maximum Wind: 17.4 mph

UV Index: 7

Air Quality

AQI: 1 - Good

PM2.5: 11.51 μg/m3

PM10: 14.37 μg/m3

Carbon Monoxide: 206.11 μg/m3
Nitrogen Dioxide: 11.23 μg/m3
Sulphur Dioxide: 0.61 μg/m3
Ozone: 69.56 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:07 PM
Sunset: 8:24 PM
Daylight: 14 hrs 32 mins

Moonrise: 1:54 PM
Moon Transit: 7:06 PM
Moonset: 12:45 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

8:14 AM - 10:44 AM
6:36 PM - 9:06 PM

Minor Periods

1:24 PM - 2:54 PM
12:00 AM - 12:00 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.

Webcams Near Greenwich, NJ

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Water Temperature of Delaware Bay in Greenwich, NJ

Current Water Temperature

Today's Tides

Temperature Locations

Local Points of Interest

Nearby Water Temperatures

Weather for Greenwich, New Jersey

Current Weather

Five Day Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Air Quality Alert issued July 15 at 3:45PM EDT by NWS Mount Holly NJ

Air Quality Alert issued July 15 at 3:45PM EDT by NWS Mount Holly NJ

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Webcams Near Greenwich, NJ

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