Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in New Castle, DE.
Next low tide : 9:54 pm (0.8 ft)
Next high tide : in 3h 11m at 3:18 pm (5.1 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:39 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Aug 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:515.65:265.611:440.56:028:14First Quarter1Thu
2Fri5:435.46:175.612:140.912:290.56:038:13First Quarter2Fri
3Sat6:385.27:105.71:080.91:170.66:048:12First Quarter3Sat
4Sun7:355.18:045.72:020.92:060.66:058:11Waxing Gibbous4Sun
5Mon8:305.18:565.82:570.82:580.66:068:10Waxing Gibbous5Mon
6Tue9:235.19:455.93:500.73:490.66:078:09Waxing Gibbous6Tue
7Wed10:135.210:316.04:420.64:400.56:088:07Waxing Gibbous7Wed
8Thu10:595.211:146.05:310.45:300.56:088:06Full Moon8Thu
9Fri11:415.311:536.16:170.46:170.46:098:05Full Moon9Fri
10Sat12:205.47:010.37:030.46:108:04Full Moon10Sat
11Sun12:316.112:585.57:420.37:470.46:118:02Full Moon11Sun
12Mon1:096.11:355.68:230.38:320.46:128:01Waning Gibbous12Mon
13Tue1:486.12:145.89:020.39:190.56:138:00Waning Gibbous13Tue
14Wed2:306.02:575.99:430.310:080.66:147:59Waning Gibbous14Wed
15Thu3:185.93:466.010:270.311:030.76:157:57Waning Gibbous15Thu
16Fri4:115.84:406.011:170.46:167:56Third Quarter16Fri
17Sat5:115.65:416.012:030.812:120.56:177:54Third Quarter17Sat
18Sun6:175.46:486.11:070.91:130.66:187:53Third Quarter18Sun
19Mon7:255.47:556.12:110.92:160.66:197:52Waning Crescent19Mon
20Tue8:315.48:596.23:130.73:180.56:207:50Waning Crescent20Tue
21Wed9:335.69:596.34:140.64:190.46:217:49Waning Crescent21Wed
22Thu10:305.710:536.45:100.45:160.36:227:47Waning Crescent22Thu
23Fri11:235.911:436.46:030.26:100.36:227:46New Moon23Fri
24Sat12:125.96:520.17:010.36:237:44New Moon24Sat
25Sun12:306.412:596.07:370.17:490.36:247:43New Moon25Sun
26Mon1:156.31:446.08:200.28:350.46:257:41Waxing Crescent26Mon
27Tue1:596.12:285.99:010.39:200.66:267:40Waxing Crescent27Tue
28Wed2:435.93:115.89:410.410:040.76:277:38Waxing Crescent28Wed
29Thu3:285.73:565.810:200.510:500.96:287:37Waxing Crescent29Thu
30Fri4:155.54:415.711:000.611:381.06:297:35First Quarter30Fri
31Sat5:055.35:305.611:430.76:307:34First Quarter31Sat
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 6:36 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 81% 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 Waning Gibbous (81% 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