Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 3h 09m at 2:33 pm (0.8 ft)
Next high tide : 8:21 pm (6.0 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:08 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Oct 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:425.910:056.24:160.44:310.36:586:45Waning Crescent1Mon
2Tue10:366.210:586.35:090.25:280.26:596:43New Moon2Tue
3Wed11:266.411:476.35:590.16:220.17:006:41New Moon3Wed
4Thu12:146.56:470.07:140.17:016:40New Moon4Thu
5Fri12:356.21:006.57:320.18:030.27:026:38New Moon5Fri
6Sat1:216.01:456.48:160.28:510.37:036:37Waxing Crescent6Sat
7Sun2:085.82:296.28:580.39:380.57:046:35Waxing Crescent7Sun
8Mon2:555.53:156.09:410.510:250.77:056:34Waxing Crescent8Mon
9Tue3:455.34:035.910:240.711:140.87:066:32Waxing Crescent9Tue
10Wed4:365.14:545.711:100.87:076:30First Quarter10Wed
11Thu5:315.05:495.612:030.912:000.97:086:29First Quarter11Thu
12Fri6:275.06:465.512:550.912:540.97:096:27First Quarter12Fri
13Sat7:235.07:435.51:460.81:500.97:106:26First Quarter13Sat
14Sun8:185.18:375.62:370.72:450.87:116:24Waxing Gibbous14Sun
15Mon9:095.39:275.63:260.63:390.67:126:23Waxing Gibbous15Mon
16Tue9:555.510:135.64:130.54:320.57:136:21Waxing Gibbous16Tue
17Wed10:385.610:565.64:580.45:220.47:146:20Waxing Gibbous17Wed
18Thu11:175.811:365.55:410.36:110.47:156:19Full Moon18Thu
19Fri11:535.96:230.36:580.37:166:17Full Moon19Fri
20Sat12:155.512:286.07:030.37:440.47:176:16Full Moon20Sat
21Sun12:545.41:046.07:430.38:310.57:186:14Waning Gibbous21Sun
22Mon1:355.31:446.18:240.49:190.57:206:13Waning Gibbous22Mon
23Tue2:195.22:306.19:100.510:100.67:216:12Waning Gibbous23Tue
24Wed3:105.23:236.010:010.511:050.77:226:10Waning Gibbous24Wed
25Thu4:085.14:235.911:000.67:236:09Third Quarter25Thu
26Fri5:125.15:315.712:020.712:040.67:246:08Third Quarter26Fri
27Sat6:195.26:415.71:010.61:100.67:256:06Third Quarter27Sat
28Sun6:255.36:495.71:000.51:140.56:265:05Waning Crescent28Sun
29Mon7:275.67:505.81:560.32:160.36:275:04Waning Crescent29Mon
30Tue8:245.98:475.82:510.13:150.26:285:03Waning Crescent30Tue
31Wed9:176.19:385.83:430.04:120.06:295:01Waning Crescent31Wed
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 5:27 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 22% 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 Waning Crescent (22% 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