Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 4h 20m at 6:51 am (0.4 ft)
Next high tide : 12:13 pm (4.9 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:37 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Nov 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:455.711:055.25:110.35:460.46:315:00New Moon1Tue
2Wed11:195.811:435.15:490.46:330.46:324:59New Moon2Wed
3Thu11:545.96:270.47:190.56:334:58New Moon3Thu
4Fri12:224.912:325.97:060.58:070.66:344:57Waxing Crescent4Fri
5Sat1:064.81:165.97:490.58:580.76:354:56Waxing Crescent5Sat
6Sun1:554.72:085.88:390.69:530.76:364:55Waxing Crescent6Sun
7Mon2:524.63:085.69:390.710:510.86:374:54First Quarter7Mon
8Tue3:574.64:175.510:460.711:510.76:394:53First Quarter8Tue
9Wed5:064.75:295.511:540.76:404:52First Quarter9Wed
10Thu6:134.96:385.512:490.51:000.56:414:51First Quarter10Thu
11Fri7:175.27:415.61:460.32:040.46:424:50Waxing Gibbous11Fri
12Sat8:155.58:375.62:390.13:040.26:434:49Waxing Gibbous12Sat
13Sun9:075.89:295.63:31-0.14:010.06:444:48Waxing Gibbous13Sun
14Mon9:566.010:185.54:19-0.24:55-0.16:454:47Full Moon14Mon
15Tue10:426.111:045.45:06-0.25:46-0.16:464:46Full Moon15Tue
16Wed11:266.111:505.25:50-0.16:350.06:484:46Full Moon16Wed
17Thu12:086.06:330.07:210.16:494:45Full Moon17Thu
18Fri12:355.012:505.87:140.28:060.26:504:44Waning Gibbous18Fri
19Sat1:214.81:325.67:540.48:500.36:514:43Waning Gibbous19Sat
20Sun2:084.72:165.58:350.59:350.56:524:43Waning Gibbous20Sun
21Mon2:564.53:035.39:180.610:200.56:534:42Waning Gibbous21Mon
22Tue3:464.53:545.210:050.611:070.56:544:42Third Quarter22Tue
23Wed4:394.44:475.110:570.711:540.56:554:41Third Quarter23Wed
24Thu5:324.55:435.011:530.66:564:41Third Quarter24Thu
25Fri6:254.66:394.912:420.412:500.66:584:40Third Quarter25Fri
26Sat7:164.87:324.91:300.31:480.56:594:40Waning Crescent26Sat
27Sun8:045.08:224.92:170.22:440.47:004:39Waning Crescent27Sun
28Mon8:495.29:104.83:030.23:390.37:014:39Waning Crescent28Mon
29Tue9:315.49:544.73:480.14:330.27:024:39Waning Crescent29Tue
30Wed10:115.510:384.74:330.15:240.17:034:38New Moon30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8551201)

Common Questions About New Castle, DE Tides

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

Slack tide in New Castle, DE is approximately 9:32 am — 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 spring phase. Tonight's moon is 100% 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 near their weekly maximum.

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 Full Moon (100% illuminated). This places New Castle, DE in a spring tide cycle, so tidal ranges are near their weekly maximum 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