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 : in 3m at 3:35 am (0.7 ft)
Next high tide : 9:05 am (5.1 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 - Sep 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:375.19:005.93:060.93:000.96:317:32Waning Crescent1Sat
2Sun9:315.19:505.93:590.83:520.86:327:31Waning Crescent2Sun
3Mon10:205.210:376.04:490.74:430.76:337:29Waning Crescent3Mon
4Tue11:055.311:196.05:350.55:310.66:347:28New Moon4Tue
5Wed11:475.411:586.06:180.56:160.66:347:26New Moon5Wed
6Thu12:255.46:580.57:000.66:357:24New Moon6Thu
7Fri12:346.012:595.57:360.57:410.66:367:23New Moon7Fri
8Sat1:085.91:315.68:110.58:210.66:377:21Waxing Crescent8Sat
9Sun1:415.82:025.78:430.69:020.76:387:19Waxing Crescent9Sun
10Mon2:155.72:365.99:150.69:460.96:397:18Waxing Crescent10Mon
11Tue2:555.63:166.09:480.710:351.06:407:16Waxing Crescent11Tue
12Wed3:415.44:046.010:290.711:341.16:417:15First Quarter12Wed
13Thu4:365.25:006.011:210.96:427:13First Quarter13Thu
14Fri5:425.06:085.912:401.212:271.06:437:11First Quarter14Fri
15Sat6:555.07:225.91:481.21:411.06:447:10First Quarter15Sat
16Sun8:085.08:346.02:531.12:520.96:457:08Waxing Gibbous16Sun
17Mon9:145.39:396.23:550.83:580.76:467:06Waxing Gibbous17Mon
18Tue10:135.510:376.44:530.65:000.56:467:05Waxing Gibbous18Tue
19Wed11:085.811:306.45:470.35:570.36:477:03Full Moon19Wed
20Thu11:586.06:360.26:510.26:487:01Full Moon20Thu
21Fri12:206.412:476.27:230.17:420.26:497:00Full Moon21Fri
22Sat1:076.31:336.28:070.18:310.36:506:58Waning Gibbous22Sat
23Sun1:546.12:196.28:500.29:190.56:516:57Waning Gibbous23Sun
24Mon2:405.83:046.19:310.410:080.66:526:55Waning Gibbous24Mon
25Tue3:285.63:506.010:130.610:570.86:536:53Waning Gibbous25Tue
26Wed4:185.34:395.810:560.811:481.06:546:52Third Quarter26Wed
27Thu5:125.15:315.711:420.96:556:50Third Quarter27Thu
28Fri6:085.06:275.612:411.012:331.06:566:48Third Quarter28Fri
29Sat7:064.97:255.61:351.01:271.06:576:47Third Quarter29Sat
30Sun8:045.08:225.72:290.92:221.06:586:45Waning Crescent30Sun
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 6:20 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