Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 4h 31m at 11:13 am (0.5 ft)
Next high tide : 4:42 pm (5.5 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Oct 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:175.59:396.03:440.53:510.66:586:45Waxing Gibbous1Fri
2Sat10:075.610:276.04:340.44:430.66:596:43Waxing Gibbous2Sat
3Sun10:535.711:116.05:200.35:310.57:006:41Waxing Gibbous3Sun
4Mon11:365.811:525.96:030.36:170.47:016:40Full Moon4Mon
5Tue12:155.86:430.37:000.57:026:38Full Moon5Tue
6Wed12:305.812:525.77:200.37:420.57:036:37Full Moon6Wed
7Thu1:075.71:255.77:550.48:210.67:046:35Full Moon7Thu
8Fri1:435.51:565.78:280.59:010.77:056:33Waning Gibbous8Fri
9Sat2:175.32:255.78:580.69:400.87:066:32Waning Gibbous9Sat
10Sun2:525.22:565.79:290.710:230.97:076:30Waning Gibbous10Sun
11Mon3:315.13:355.810:050.711:111.07:086:29Waning Gibbous11Mon
12Tue4:185.04:245.710:510.87:096:27Third Quarter12Tue
13Wed5:144.95:235.712:061.011:49 AM0.87:106:26Third Quarter13Wed
14Thu6:185.06:325.71:061.012:570.87:116:24Third Quarter14Thu
15Fri7:255.17:425.82:060.82:070.77:126:23Waning Crescent15Fri
16Sat8:285.38:486.03:050.63:130.57:136:21Waning Crescent16Sat
17Sun9:265.79:476.24:020.44:160.37:146:20Waning Crescent17Sun
18Mon10:206.010:426.34:560.25:150.17:156:18Waning Crescent18Mon
19Tue11:126.311:346.35:480.06:12-0.17:166:17New Moon19Tue
20Wed12:016.56:38-0.27:07-0.27:176:16New Moon20Wed
21Thu12:256.312:516.67:27-0.28:00-0.27:186:14New Moon21Thu
22Fri1:166.11:406.58:15-0.18:53-0.17:196:13Waxing Crescent22Fri
23Sat2:085.92:316.49:040.09:460.17:216:12Waxing Crescent23Sat
24Sun3:025.63:246.29:530.210:400.37:226:10Waxing Crescent24Sun
25Mon3:575.44:196.010:450.411:340.47:236:09First Quarter25Mon
26Tue4:555.25:185.811:390.67:246:08First Quarter26Tue
27Wed5:555.16:175.712:290.512:340.77:256:06First Quarter27Wed
28Thu6:555.17:175.61:240.51:310.77:266:05First Quarter28Thu
29Fri7:535.28:145.62:170.52:270.77:276:04Waxing Gibbous29Fri
30Sat8:475.39:075.63:090.43:210.67:286:03Waxing Gibbous30Sat
31Sun9:385.59:565.63:570.24:130.47:296:01Waxing Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8551201)

Common Questions About New Castle, DE Tides

Show All
What time does the tide turn (slack tide) in New Castle, DE today?

Slack tide in New Castle, DE is approximately 1:57 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in New Castle, DE?

New Castle, DE is currently in a transitional phase. Tonight's moon is 62% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are New Castle, DE tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for New Castle, DE?

Tide predictions for New Castle, DE come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for New Castle, DE?

Tide data for New Castle, DE is sourced from NOAA Station #8551201. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8551201.

What is the moon phase in New Castle, DE tonight?

Tonight the moon over New Castle, DE is Third Quarter (62% illuminated). This places New Castle, DE in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA