Water Temperature of Delaware Bay in Greenwich, NJ

Current Water Temperature

78.4°F

Measurement Time: Friday, July 31, 2026, 12:42 AM EDT

Today's Tides

Low: July 31, 6:12 AM, 0.4 ft
High: July 31, 11:54 AM, 5.5 ft
Low: July 31, 6:10 PM, 0.6 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

71.8°F

Conditions: Partly cloudy

Feels Like: 76.3°F

Heat Index: 75.7°F

Humidity: 88%

Wind: SSE 3.6 mph

Wind Gusts: 7.4 mph

Wind Chill: 70.7°F

Dew Point: 68.3°F

Precipitation: 0 in

Cloud Cover: 50%

Visibility: 10 mi

Air Pressure: 1012 mbar

UV Index: 0

Five Day Weather Forecast

Fri
H: 85°F
L: 68°F

Sat
H: 85°F
L: 69°F

Sun
H: 83°F
L: 72°F

Mon
H: 82°F
L: 72°F

Tue
H: 80°F
L: 72°F

Air Quality

AQI: 1 - Good

PM2.5: 9.2 μg/m3

PM10: 9.3 μg/m3

Carbon Monoxide: 218 μg/m3
Nitrogen Dioxide: 27.9 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 22 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 1:07 PM
Sunset: 8:15 PM
Daylight: 14 hrs 14 mins

Moonrise: 9:24 PM
Moon Transit: 2:22 AM
Moonset: 7:53 AM
Moon Phase: Full
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

1:52 AM - 4:22 AM
4:15 PM - 6:45 PM

Minor Periods

8:54 PM - 10:24 PM
7:23 AM - 8:53 AM

Action Rating: 3 out of 5

Friday, July 31, 2026

Weather Forecast

Conditions: Partly Cloudy

High Temperature: 84.8°F

Low Temperature: 67.5°F

Average Temperature: 75.6°F

Average Humidity: 77%

Precipitation: 0 in

Chance of Rain: 10%

Chance of Snow: 0%

Maximum Wind: 9.2 mph

UV Index: 8.5

Air Quality

AQI: 1 - Good

PM2.5: 10.87 μg/m3

PM10: 11.15 μg/m3

Carbon Monoxide: 165.08 μg/m3
Nitrogen Dioxide: 16.44 μg/m3
Sulphur Dioxide: 1.93 μg/m3
Ozone: 71.88 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 1:07 PM
Sunset: 8:15 PM
Daylight: 14 hrs 14 mins

Moonrise: 9:24 PM
Moon Transit: 2:22 AM
Moonset: 7:53 AM
Moon Phase: Full
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

1:52 AM - 4:22 AM
4:15 PM - 6:45 PM

Minor Periods

8:54 PM - 10:24 PM
7:23 AM - 8:53 AM

Action Rating: 3 out of 5

Saturday, August 1, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 85.3°F

Low Temperature: 68.8°F

Average Temperature: 76.3°F

Average Humidity: 72%

Precipitation: 0.01 in

Chance of Rain: 17%

Chance of Snow: 0%

Maximum Wind: 13 mph

UV Index: 8.6

Air Quality

AQI: 1 - Good

PM2.5: 8.42 μg/m3

PM10: 9.09 μg/m3

Carbon Monoxide: 141.17 μg/m3
Nitrogen Dioxide: 9.01 μg/m3
Sulphur Dioxide: 1.49 μg/m3
Ozone: 94.29 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 1:07 PM
Sunset: 8:14 PM
Daylight: 14 hrs 12 mins

Moonrise: 9:47 PM
Moon Transit: 3:06 AM
Moonset: 8:57 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.9%

Best Times for Fishing or Hunting

Major Periods

2:36 AM - 5:06 AM
4:58 PM - 7:28 PM

Minor Periods

9:17 PM - 10:47 PM
8:27 AM - 9:57 AM

Action Rating: 2 out of 5

Sunday, August 2, 2026

Weather Forecast

Conditions: Partly Cloudy

High Temperature: 83°F

Low Temperature: 71.7°F

Average Temperature: 76.7°F

Average Humidity: 74%

Precipitation: 0 in

Chance of Rain: 18%

Chance of Snow: 0%

Maximum Wind: 15 mph

UV Index: 8.8

Air Quality

AQI: 1 - Good

PM2.5: 7.55 μg/m3

PM10: 9.74 μg/m3

Carbon Monoxide: 119.38 μg/m3
Nitrogen Dioxide: 3.26 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 90.25 μg/m3

Astronomical

Sunrise: 6:03 AM
Sun Transit: 1:07 PM
Sunset: 8:13 PM
Daylight: 14 hrs 10 mins

Moonrise: 10:09 PM
Moon Transit: 3:49 AM
Moonset: 10:02 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.9%

Best Times for Fishing or Hunting

Major Periods

3:19 AM - 5:49 AM
5:41 PM - 8:11 PM

Minor Periods

9:39 PM - 11:09 PM
9:32 AM - 11:02 AM

Action Rating: 4 out of 5

Monday, August 3, 2026

Weather Forecast

Conditions: Light rain shower

High Temperature: 81.8°F

Low Temperature: 72.3°F

Average Temperature: 76.1°F

Average Humidity: 89%

Precipitation: 0.55 in

Chance of Rain: 89%

Chance of Snow: 0%

Maximum Wind: 18.6 mph

UV Index: 9.4

Air Quality

AQI: 1 - Good

PM2.5: 2.46 μg/m3

PM10: 2.93 μg/m3

Carbon Monoxide: 120.8 μg/m3
Nitrogen Dioxide: 3.7 μg/m3
Sulphur Dioxide: 0.45 μg/m3
Ozone: 71.33 μg/m3

Astronomical

Sunrise: 6:03 AM
Sun Transit: 1:07 PM
Sunset: 8:12 PM
Daylight: 14 hrs 8 mins

Moonrise: 10:33 PM
Moon Transit: 12:00 AM
Moonset: 11:07 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

10:03 PM - 11:33 PM
10:37 AM - 12:07 AM

Action Rating: 2 out of 5

Tuesday, August 4, 2026

Weather Forecast

Conditions: Light rain shower

High Temperature: 80.3°F

Low Temperature: 71.9°F

Average Temperature: 74.9°F

Average Humidity: 90%

Precipitation: 0.32 in

Chance of Rain: 87%

Chance of Snow: 0%

Maximum Wind: 9.8 mph

UV Index: 7

Air Quality

AQI: 1 - Good

PM2.5: 3.29 μg/m3

PM10: 3.3 μg/m3

Carbon Monoxide: 231.67 μg/m3
Nitrogen Dioxide: 8.78 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 51.11 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 1:07 PM
Sunset: 8:10 PM
Daylight: 14 hrs 6 mins

Moonrise: 11:00 PM
Moon Transit: 5:18 AM
Moonset: 12:16 AM
Moon Phase: Last Quarter
Moon Illumination: 54.6%

Best Times for Fishing or Hunting

Major Periods

4:48 AM - 7:18 AM
7:13 PM - 9:43 PM

Minor Periods

10:30 PM - 12:00 PM
11:46 AM - 1:16 PM

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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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

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

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