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 (tomorrow) : in 6h 54m at 4:21 am (0.7 ft)
Next high tide (tomorrow) : 9:36 am (5.2 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 - Sep 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:175.411:356.05:540.65:520.76:317:32New Moon1Sun
2Mon12:015.56:370.56:370.76:327:31New Moon2Mon
3Tue12:156.012:425.57:160.57:200.76:327:29New Moon3Tue
4Wed12:535.91:205.57:530.58:000.86:337:28New Moon4Wed
5Thu1:305.71:555.58:260.68:390.96:347:26Waxing Crescent5Thu
6Fri2:055.62:285.58:570.79:171.06:357:25Waxing Crescent6Fri
7Sat2:405.42:595.69:250.89:561.16:367:23Waxing Crescent7Sat
8Sun3:155.23:325.69:530.810:391.26:377:21Waxing Crescent8Sun
9Mon3:555.04:105.610:270.911:301.36:387:20First Quarter9Mon
10Tue4:434.94:575.611:101.06:397:18First Quarter10Tue
11Wed5:404.75:565.612:291.312:061.06:407:16First Quarter11Wed
12Thu6:464.77:045.71:321.31:121.16:417:15First Quarter12Thu
13Fri7:544.88:135.82:351.22:221.06:427:13Waxing Gibbous13Fri
14Sat8:565.09:166.03:351.03:290.86:437:12Waxing Gibbous14Sat
15Sun9:525.310:136.24:320.84:320.66:447:10Waxing Gibbous15Sun
16Mon10:445.611:066.45:240.55:300.36:447:08Full Moon16Mon
17Tue11:335.911:556.56:140.36:260.26:457:07Full Moon17Tue
18Wed12:216.27:010.17:200.16:467:05Full Moon18Wed
19Thu12:446.51:096.47:470.18:120.16:477:03Full Moon19Thu
20Fri1:336.31:576.58:320.19:050.26:487:02Waning Gibbous20Fri
21Sat2:236.12:476.59:180.210:000.46:497:00Waning Gibbous21Sat
22Sun3:165.83:396.310:060.410:560.66:506:58Waning Gibbous22Sun
23Mon4:125.54:366.210:570.611:540.86:516:57Third Quarter23Mon
24Tue5:115.25:366.011:520.86:526:55Third Quarter24Tue
25Wed6:145.06:405.812:540.912:511.06:536:53Third Quarter25Wed
26Thu7:185.07:455.71:541.01:511.06:546:52Third Quarter26Thu
27Fri8:195.18:455.82:510.92:501.06:556:50Waning Crescent27Fri
28Sat9:165.29:385.83:450.83:460.96:566:49Waning Crescent28Sat
29Sun10:075.410:265.94:350.64:380.86:576:47Waning Crescent29Sun
30Mon10:535.511:095.95:210.55:270.76:586:45Waning Crescent30Mon
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 6:58 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 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