Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Friday, August 14, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 4h 43m at 8:25 pm (0.4 ft)
Next high tide (tomorrow) : 1:54 am (6.2 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waxing Crescent (5% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Aug 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:006.03:365.510:090.310:190.76:008:16Waxing Crescent1Thu
2Fri3:495.84:255.510:520.411:090.96:018:14Waxing Crescent2Fri
3Sat4:385.65:155.511:350.56:028:13First Quarter3Sat
4Sun5:305.46:065.612:001.012:190.66:038:12First Quarter4Sun
5Mon6:245.26:585.612:531.01:050.76:048:11First Quarter5Mon
6Tue7:205.17:515.71:481.01:530.76:058:10First Quarter6Tue
7Wed8:175.08:445.82:441.02:430.76:068:09Waxing Gibbous7Wed
8Thu9:115.09:345.83:380.83:340.76:078:08Waxing Gibbous8Thu
9Fri10:025.010:215.94:310.74:240.76:088:07Waxing Gibbous9Fri
10Sat10:505.011:056.05:210.65:140.66:098:05Waxing Gibbous10Sat
11Sun11:345.111:456.16:090.56:010.66:108:04Full Moon11Sun
12Mon12:145.16:530.46:470.56:118:03Full Moon12Mon
13Tue12:246.112:525.27:350.47:310.56:128:02Full Moon13Tue
14Wed1:016.11:285.38:150.48:140.56:138:00Full Moon14Wed
15Thu1:386.12:055.58:530.48:580.56:147:59Waning Gibbous15Thu
16Fri2:186.12:455.79:320.49:450.66:147:58Waning Gibbous16Fri
17Sat3:016.03:295.810:110.410:370.76:157:56Waning Gibbous17Sat
18Sun3:505.84:195.910:550.511:350.96:167:55Third Quarter18Sun
19Mon4:455.65:156.011:440.66:177:53Third Quarter19Mon
20Tue5:475.46:186.012:381.012:410.66:187:52Third Quarter20Tue
21Wed6:555.27:256.01:441.01:440.76:197:51Third Quarter21Wed
22Thu8:045.28:326.12:500.92:480.76:207:49Waning Crescent22Thu
23Fri9:095.29:356.23:530.83:520.76:217:48Waning Crescent23Fri
24Sat10:105.410:336.34:530.64:520.66:227:46Waning Crescent24Sat
25Sun11:055.511:266.45:480.45:490.56:237:45New Moon25Sun
26Mon11:575.66:400.36:420.46:247:43New Moon26Mon
27Tue12:166.412:465.77:270.27:320.46:257:42New Moon27Tue
28Wed1:036.31:335.88:110.28:200.56:267:40New Moon28Wed
29Thu1:486.12:185.88:530.39:060.66:277:39Waxing Crescent29Thu
30Fri2:326.03:025.79:330.49:510.86:287:37Waxing Crescent30Fri
31Sat3:175.73:465.710:120.610:370.96:287:36Waxing Crescent31Sat
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 11:09 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 spring phase. Tonight's moon is 5% 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 Waxing Crescent (5% 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