Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in New Castle, DE.
Next low tide (tomorrow) : in 4h 45m at 2:57 am (1.0 ft)
Next high tide (tomorrow) : 8:08 am (5.0 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - May 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:255.69:025.72:540.63:290.46:027:56Waning Crescent1Mon
2Tue9:265.79:576.13:580.44:230.26:017:57Waning Crescent2Tue
3Wed10:225.710:486.44:590.25:160.16:007:58Waning Crescent3Wed
4Thu11:165.711:386.55:570.06:060.15:587:59New Moon4Thu
5Fri12:085.66:52-0.16:560.15:578:00New Moon5Fri
6Sat12:266.612:595.57:46-0.17:450.25:568:01New Moon6Sat
7Sun1:156.51:515.38:380.08:340.45:558:02Waxing Crescent7Sun
8Mon2:056.32:445.29:290.29:240.65:548:03Waxing Crescent8Mon
9Tue2:566.13:395.010:210.310:150.85:538:03Waxing Crescent9Tue
10Wed3:505.84:354.911:120.511:090.95:528:04First Quarter10Wed
11Thu4:465.65:334.912:040.65:518:05First Quarter11Thu
12Fri5:455.46:315.012:041.012:550.75:508:06First Quarter12Fri
13Sat6:445.37:275.11:011.11:460.75:498:07First Quarter13Sat
14Sun7:425.28:215.31:581.02:350.65:488:08Waxing Gibbous14Sun
15Mon8:375.29:115.52:540.93:220.55:478:09Waxing Gibbous15Mon
16Tue9:285.29:585.73:480.84:070.55:468:10Waxing Gibbous16Tue
17Wed10:165.110:415.84:400.64:510.55:458:11Waxing Gibbous17Wed
18Thu11:015.111:205.95:300.55:330.55:448:12Waxing Gibbous18Thu
19Fri11:435.011:575.96:170.46:130.65:448:13Full Moon19Fri
20Sat12:244.97:020.46:520.65:438:14Full Moon20Sat
21Sun12:305.91:024.87:450.47:300.75:428:15Full Moon21Sun
22Mon1:035.91:394.88:270.58:080.75:418:15Full Moon22Mon
23Tue1:375.92:184.89:090.58:480.85:418:16Waning Gibbous23Tue
24Wed2:155.92:594.89:520.69:320.85:408:17Waning Gibbous24Wed
25Thu2:595.93:464.910:360.610:230.85:398:18Waning Gibbous25Thu
26Fri3:505.94:385.111:240.611:210.85:398:19Third Quarter26Fri
27Sat4:475.85:365.312:150.65:388:20Third Quarter27Sat
28Sun5:495.76:365.512:250.81:080.55:388:20Third Quarter28Sun
29Mon6:555.67:375.71:310.82:030.45:378:21Third Quarter29Mon
30Tue8:005.58:376.02:370.72:580.45:378:22Waning Crescent30Tue
31Wed9:025.59:336.33:410.53:530.35:368:23Waning 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 5:32 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 transitional phase. Tonight's moon is 30% 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 (30% 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