Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in New Castle, DE.
Next low tide (tomorrow) : in 6h 03m at 4:28 am (0.6 ft)
Next high tide (tomorrow) : 9:56 am (5.0 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - May 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:006.22:335.29:160.29:120.66:027:56Waning Gibbous1Sat
2Sun2:456.03:225.010:020.49:560.86:017:57Waning Gibbous2Sun
3Mon3:315.84:134.910:480.510:420.96:007:58Waning Gibbous3Mon
4Tue4:205.65:054.911:350.611:321.05:587:59Third Quarter4Tue
5Wed5:135.45:594.912:230.75:578:00Third Quarter5Wed
6Thu6:095.36:545.012:251.01:120.75:568:01Third Quarter6Thu
7Fri7:075.27:485.11:221.02:010.75:558:01Third Quarter7Fri
8Sat8:045.18:405.32:190.92:500.65:548:02Waning Crescent8Sat
9Sun8:575.19:285.43:150.83:380.55:538:03Waning Crescent9Sun
10Mon9:475.110:125.64:100.74:240.55:528:04Waning Crescent10Mon
11Tue10:345.110:535.85:030.55:090.55:518:05Waning Crescent11Tue
12Wed11:185.011:315.95:540.45:530.55:508:06New Moon12Wed
13Thu12:005.06:420.36:360.55:498:07New Moon13Thu
14Fri12:076.012:415.07:300.37:190.55:488:08New Moon14Fri
15Sat12:456.11:245.08:160.38:030.55:478:09New Moon15Sat
16Sun1:266.12:095.09:030.38:500.65:468:10Waxing Crescent16Sun
17Mon2:116.12:585.19:510.49:410.65:458:11Waxing Crescent17Mon
18Tue3:026.13:515.110:410.410:370.65:448:12Waxing Crescent18Tue
19Wed3:586.04:505.211:330.411:370.75:448:13First Quarter19Wed
20Thu5:005.85:515.412:270.45:438:14First Quarter20Thu
21Fri6:065.76:535.612:410.71:220.45:428:15First Quarter21Fri
22Sat7:115.67:545.81:440.62:170.35:418:15First Quarter22Sat
23Sun8:145.68:526.12:470.53:120.35:418:16Waxing Gibbous23Sun
24Mon9:145.59:466.33:480.44:050.25:408:17Waxing Gibbous24Mon
25Tue10:095.510:366.44:470.34:560.25:398:18Waxing Gibbous25Tue
26Wed11:015.411:246.55:420.25:460.35:398:19Full Moon26Wed
27Thu11:505.46:340.26:340.45:388:20Full Moon27Thu
28Fri12:096.412:385.37:230.27:190.55:388:20Full Moon28Fri
29Sat12:536.31:245.28:090.28:030.65:378:21Full Moon29Sat
30Sun1:366.12:105.18:530.38:450.75:378:22Waning Gibbous30Sun
31Mon2:195.92:565.09:360.49:270.95:368:23Waning Gibbous31Mon
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 7:12 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 84% 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 Waxing Gibbous (84% 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