Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 1h 51m at 9:54 pm (0.8 ft)
Next high tide (tomorrow) : 3:20 am (5.8 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:39 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jul 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:385.46:205.412:040.912:360.55:388:33First Quarter1Wed
2Thu6:335.37:125.412:570.91:220.55:388:33First Quarter2Thu
3Fri7:285.28:045.51:520.92:090.55:398:33First Quarter3Fri
4Sat8:235.18:545.72:470.82:580.55:398:33Waxing Gibbous4Sat
5Sun9:165.19:425.83:420.73:470.55:408:33Waxing Gibbous5Sun
6Mon10:065.110:275.94:360.64:360.55:408:33Waxing Gibbous6Mon
7Tue10:535.111:096.05:270.45:240.45:418:32Waxing Gibbous7Tue
8Wed11:375.111:486.16:170.36:120.45:428:32Full Moon8Wed
9Thu12:195.17:030.36:580.45:428:32Full Moon9Thu
10Fri12:276.11:005.27:480.27:440.45:438:31Full Moon10Fri
11Sat1:076.21:425.38:320.28:300.45:448:31Waning Gibbous11Sat
12Sun1:496.22:255.49:160.29:180.45:448:30Waning Gibbous12Sun
13Mon2:356.23:125.510:010.210:090.55:458:30Waning Gibbous13Mon
14Tue3:256.14:045.710:480.211:050.65:468:29Waning Gibbous14Tue
15Wed4:206.04:595.811:370.25:478:29Third Quarter15Wed
16Thu5:205.85:595.912:050.612:300.35:478:28Third Quarter16Thu
17Fri6:235.67:016.01:070.71:260.35:488:28Third Quarter17Fri
18Sat7:285.58:036.12:100.72:240.35:498:27Waning Crescent18Sat
19Sun8:325.59:036.33:130.63:210.35:508:26Waning Crescent19Sun
20Mon9:325.510:006.44:130.44:180.35:508:26Waning Crescent20Mon
21Tue10:295.510:536.45:110.35:140.35:518:25Waning Crescent21Tue
22Wed11:225.511:426.46:050.26:060.35:528:24New Moon22Wed
23Thu12:125.56:560.16:560.35:538:23New Moon23Thu
24Fri12:296.41:005.57:430.17:430.45:548:23New Moon24Fri
25Sat1:146.21:465.58:270.28:280.55:558:22Waxing Crescent25Sat
26Sun1:576.12:315.59:090.29:120.65:568:21Waxing Crescent26Sun
27Mon2:415.93:165.49:490.39:550.85:568:20Waxing Crescent27Mon
28Tue3:245.84:005.410:280.410:400.95:578:19Waxing Crescent28Tue
29Wed4:095.64:465.411:080.511:270.95:588:18First Quarter29Wed
30Thu4:575.45:335.411:480.65:598:17First Quarter30Thu
31Fri5:495.26:235.412:181.012:320.66:008:16First Quarter31Fri
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 12:37 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 81% 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 Gibbous (81% 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