Water Temperature of Delaware Bay in Greenwich, NJ
Current Water Temperature
not available at this time.
Today's Tides
Low: August 5, 1:51 AM, 1.06 ft
High: August 5, 7:40 AM, 4.83 ft
Low: August 5, 1:40 PM, 0.91 ft
High: August 5, 8:01 PM, 6.21 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, DESponsored Content
Station Name: Ship John Shoal
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 0 feet / 0 meters
Sensor Depth: -2.2 feet / -0.7 meters
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 (17.0 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

Humidity: 58%
Feels Like: 82.9°F
Wind: SSE 7.4 mph
Wind Gusts: 10 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 3.6
Five Day Weather Forecast

Tue
H: 82°F
L: 64°F

Wed
H: 81°F
L: 68°F

Thu
H: 78°F
L: 68°F

Fri
H: 82°F
L: 66°F

Sat
H: 83°F
L: 62°F
Air Quality
Nitrogen Dioxide: 18.13 μg/m3
Sulphur Dioxide: 3.15 μg/m3
Ozone: 101 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:09 PM
Daylight: 14 hrs 3 mins
Moon Transit: 10:23 PM
Moonset: 1:53 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%
Best Times for Fishing or Hunting
Major Periods
11:28 AM - 1:58 PM12:00 AM - 12:00 AM
Minor Periods
5:31 PM - 7:01 PM1:23 AM - 2:53 AM
Action Rating: 2 out of 5
Air Quality Alert issued August 4 at 4:48PM EDT by NWS Mount Holly NJ
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Mon August 4, 2025, 8:48 PM
Expires: Wed August 6, 2025, 4:00 AM
The New Jersey Department of Environmental Protection has issued a Code Orange Air Quality Action Day for Ground Level Ozone, until midnight EDT tonight. An Air Quality Advisory means that air quality within the region may approach or exceed unhealthy standards. For more information on current and forecast concentrations of ground-level ozone and fine particulates, visit www.airnow.gov or www.state.nj.us/dep/airmon/ or call the New Jersey Bureau of Air Monitoring at 609-292-0138
Air Quality Alert issued August 5 at 3:45AM EDT by NWS Mount Holly NJ
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Tue August 5, 2025, 7:45 AM
Expires: Wed August 6, 2025, 4:00 AM
Air Quality Alert issued August 4 at 4:48PM EDT by NWS Mount Holly NJ
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Mon August 4, 2025, 8:48 PM
Expires: Wed August 6, 2025, 4:00 AM
The New Jersey Department of Environmental Protection has issued a Code Orange Air Quality Action Day for Ground Level Ozone, until midnight EDT tonight. An Air Quality Advisory means that air quality within the region may approach or exceed unhealthy standards. For more information on current and forecast concentrations of ground-level ozone and fine particulates, visit www.airnow.gov or www.state.nj.us/dep/airmon/ or call the New Jersey Bureau of Air Monitoring at 609-292-0138
Air Quality Alert issued August 5 at 3:45AM EDT by NWS Mount Holly NJ
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Tue August 5, 2025, 7:45 AM
Expires: Wed August 6, 2025, 4:00 AM
Air Quality Alert issued August 4 at 4:48PM EDT by NWS Mount Holly NJ
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Mon August 4, 2025, 8:48 PM
Expires: Wed August 6, 2025, 4:00 AM
The New Jersey Department of Environmental Protection has issued a Code Orange Air Quality Action Day for Ground Level Ozone, until midnight EDT tonight. An Air Quality Advisory means that air quality within the region may approach or exceed unhealthy standards. For more information on current and forecast concentrations of ground-level ozone and fine particulates, visit www.airnow.gov or www.state.nj.us/dep/airmon/ or call the New Jersey Bureau of Air Monitoring at 609-292-0138
Weather Forecast
Average Temperature: 73.3°F
Average Humidity: 79%
Wind: 8.1 mph
UV Index: 1.8
Air Quality
Nitrogen Dioxide: 34.63 μg/m3
Sulphur Dioxide: 8.24 μg/m3
Ozone: 113.52 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:09 PM
Daylight: 14 hrs 3 mins
Moon Transit: 10:23 PM
Moonset: 1:53 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%
Best Times for Fishing or Hunting
Major Periods
11:28 AM - 1:58 PM12:00 AM - 12:00 AM
Minor Periods
5:31 PM - 7:01 PM1:23 AM - 2:53 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 73°F
Average Humidity: 83%
Wind: 11.9 mph
UV Index: 1.7
Air Quality
Nitrogen Dioxide: 17.4 μg/m3
Sulphur Dioxide: 3.19 μg/m3
Ozone: 86.72 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:08 PM
Daylight: 14 hrs 1 mins
Moon Transit: 11:18 PM
Moonset: 2:49 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 94.4%
Best Times for Fishing or Hunting
Major Periods
12:22 AM - 2:52 PM12:00 AM - 12:00 AM
Minor Periods
6:19 PM - 7:49 PM2:19 AM - 3:49 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 71.7°F
Average Humidity: 73%
Wind: 14.1 mph
UV Index: 2
Air Quality
Nitrogen Dioxide: 9.63 μg/m3
Sulphur Dioxide: 2.66 μg/m3
Ozone: 80.24 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:07 PM
Daylight: 13 hrs 59 mins
Moon Transit: 12:00 AM
Moonset: 3:53 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.4%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM1:17 PM - 3:47 PM
Minor Periods
7:00 PM - 8:30 PM3:23 AM - 4:53 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 70.7°F
Average Humidity: 74%
Wind: 11.2 mph
UV Index: 2.2
Air Quality
Nitrogen Dioxide: 10.59 μg/m3
Sulphur Dioxide: 2.14 μg/m3
Ozone: 68.12 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:05 PM
Daylight: 13 hrs 57 mins
Moon Transit: 12:12 AM
Moonset: 5:02 AM
Moon Phase: Full
Moon Illumination: 100.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:10 PM - 4:40 PM
Minor Periods
7:34 PM - 9:04 PM4:32 AM - 6:02 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 71.5°F
Average Humidity: 67%
Wind: 11 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 19.43 μg/m3
Sulphur Dioxide: 2.6 μg/m3
Ozone: 51.31 μg/m3
Astronomical
Sun Transit: 1:06 PM
Sunset: 8:04 PM
Daylight: 13 hrs 55 mins
Moon Transit: 1:04 AM
Moonset: 6:13 AM
Moon Phase: Full
Moon Illumination: 99.0%
Best Times for Fishing or Hunting
Major Periods
12:34 AM - 3:04 AM3:00 PM - 5:30 PM
Minor Periods
8:04 PM - 9:34 PM5:43 AM - 7:13 AM
Action Rating: 5 out of 5