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 11m at 11:35 pm (0.9 ft)
Next high tide (tomorrow) : 4:56 am (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 - Nov 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:056.09:295.83:350.14:070.16:305:00Waning Crescent1Tue
2Wed9:556.310:205.84:260.05:04-0.16:314:59New Moon2Wed
3Thu10:446.411:125.85:18-0.15:59-0.26:324:58New Moon3Thu
4Fri11:336.56:08-0.16:53-0.26:344:57New Moon4Fri
5Sat12:035.712:246.56:59-0.17:47-0.16:354:56Waxing Crescent5Sat
6Sun12:575.51:176.37:510.08:410.06:364:55Waxing Crescent6Sun
7Mon1:525.42:146.18:450.19:350.16:374:54Waxing Crescent7Mon
8Tue2:515.23:135.99:410.310:310.26:384:53First Quarter8Tue
9Wed3:525.14:155.710:390.411:260.36:394:52First Quarter9Wed
10Thu4:535.15:175.511:370.46:404:51First Quarter10Thu
11Fri5:545.26:175.512:210.312:360.56:424:50First Quarter11Fri
12Sat6:535.37:145.41:140.21:340.46:434:49Waxing Gibbous12Sat
13Sun7:475.58:085.42:050.12:290.36:444:48Waxing Gibbous13Sun
14Mon8:385.68:575.42:530.03:220.26:454:47Waxing Gibbous14Mon
15Tue9:245.79:435.33:400.04:120.16:464:47Waxing Gibbous15Tue
16Wed10:075.810:275.24:240.04:590.06:474:46Full Moon16Wed
17Thu10:475.711:085.15:050.05:440.06:484:45Full Moon17Thu
18Fri11:245.711:485.05:450.06:270.16:494:44Full Moon18Fri
19Sat12:005.66:230.17:080.16:514:44Full Moon19Sat
20Sun12:274.812:335.56:590.27:480.26:524:43Waning Gibbous20Sun
21Mon1:044.71:055.47:340.28:270.36:534:42Waning Gibbous21Mon
22Tue1:404.61:385.48:100.39:060.36:544:42Waning Gibbous22Tue
23Wed2:184.62:175.48:490.39:470.46:554:41Waning Gibbous23Wed
24Thu3:004.73:035.49:350.310:320.36:564:41Third Quarter24Thu
25Fri3:484.73:565.310:290.311:210.36:574:40Third Quarter25Fri
26Sat4:424.94:575.311:310.36:584:40Third Quarter26Sat
27Sun5:425.06:025.212:150.212:360.36:594:39Third Quarter27Sun
28Mon6:425.37:065.21:100.11:420.27:004:39Waning Crescent28Mon
29Tue7:415.58:075.32:06-0.12:460.07:014:39Waning Crescent29Tue
30Wed8:385.89:055.33:03-0.23:47-0.17:024:38Waning Crescent30Wed
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 2:15 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 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