Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, June 11, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 4h 24m at 3:18 pm (0.5 ft)
Next high tide : 9:04 pm (6.1 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:33 am
Moon phase : Waning Crescent (17% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jun 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:225.09:455.93:570.83:580.65:368:23Waning Crescent1Tue
2Wed10:145.010:326.14:560.64:500.65:368:24Waning Crescent2Wed
3Thu11:055.011:186.25:520.55:420.55:358:25New Moon3Thu
4Fri11:555.06:460.46:350.55:358:25New Moon4Fri
5Sat12:066.312:465.17:390.37:280.55:358:26New Moon5Sat
6Sun12:566.41:385.18:300.28:220.45:348:27Waxing Crescent6Sun
7Mon1:486.32:325.29:210.29:170.55:348:27Waxing Crescent7Mon
8Tue2:446.23:295.310:130.210:130.55:348:28Waxing Crescent8Tue
9Wed3:416.14:275.411:040.211:120.65:348:28Waxing Crescent9Wed
10Thu4:415.95:265.511:570.25:348:29First Quarter10Thu
11Fri5:425.76:255.712:120.612:490.25:338:29First Quarter11Fri
12Sat6:435.67:245.81:120.61:410.35:338:30First Quarter12Sat
13Sun7:435.48:206.02:120.62:330.35:338:30Waxing Gibbous13Sun
14Mon8:405.39:136.23:120.63:240.35:338:31Waxing Gibbous14Mon
15Tue9:345.310:036.24:090.54:140.45:338:31Waxing Gibbous15Tue
16Wed10:255.210:496.25:030.45:020.45:338:32Waxing Gibbous16Wed
17Thu11:135.111:336.25:540.45:480.55:348:32Full Moon17Thu
18Fri11:595.16:410.46:330.65:348:32Full Moon18Fri
19Sat12:146.112:435.07:250.47:140.75:348:32Full Moon19Sat
20Sun12:536.01:254.98:070.47:540.85:348:33Full Moon20Sun
21Mon1:315.92:064.98:460.58:320.85:348:33Waning Gibbous21Mon
22Tue2:085.82:464.99:230.59:090.95:348:33Waning Gibbous22Tue
23Wed2:455.73:254.910:000.69:480.95:358:33Waning Gibbous23Wed
24Thu3:235.64:055.010:350.610:310.95:358:33Waning Gibbous24Thu
25Fri4:045.54:465.111:120.611:191.05:358:34Third Quarter25Fri
26Sat4:495.45:305.211:510.65:368:34Third Quarter26Sat
27Sun5:405.26:205.412:151.012:340.65:368:34Third Quarter27Sun
28Mon6:385.07:145.51:171.11:230.65:368:34Third Quarter28Mon
29Tue7:414.98:105.72:221.02:170.65:378:34Waning Crescent29Tue
30Wed8:444.99:075.93:270.93:150.65:378:34Waning 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 6:11 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 17% 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 Crescent (17% 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