Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 3h 04m at 9:30 am (0.1 ft)
Next high tide : 2:53 pm (5.5 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - May 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:495.64:394.911:130.511:020.76:027:56Third Quarter1Thu
2Fri4:345.55:284.911:590.611:570.86:007:57Third Quarter2Fri
3Sat5:285.56:225.012:500.65:597:58Third Quarter3Sat
4Sun6:295.47:185.212:590.81:440.55:587:59Third Quarter4Sun
5Mon7:335.48:155.42:030.72:390.55:578:00Waning Crescent5Mon
6Tue8:355.59:095.73:070.63:340.45:568:01Waning Crescent6Tue
7Wed9:335.610:016.04:090.44:280.25:558:02Waning Crescent7Wed
8Thu10:275.610:516.35:080.25:210.15:548:03Waning Crescent8Thu
9Fri11:205.711:406.56:050.06:140.15:538:04New Moon9Fri
10Sat12:125.77:00-0.17:050.05:518:05New Moon10Sat
11Sun12:296.61:055.77:53-0.27:570.15:508:06New Moon11Sun
12Mon1:206.61:585.68:46-0.28:490.25:508:07Waxing Crescent12Mon
13Tue2:136.52:545.69:39-0.19:430.35:498:08Waxing Crescent13Tue
14Wed3:086.33:525.510:330.010:390.45:488:09Waxing Crescent14Wed
15Thu4:066.14:515.511:270.111:360.55:478:10First Quarter15Thu
16Fri5:075.95:525.512:220.25:468:11First Quarter16Fri
17Sat6:095.76:525.612:350.61:160.25:458:11First Quarter17Sat
18Sun7:105.67:505.71:340.62:090.25:448:12First Quarter18Sun
19Mon8:095.58:455.92:320.63:010.25:438:13Waxing Gibbous19Mon
20Tue9:035.59:356.03:280.53:500.25:438:14Waxing Gibbous20Tue
21Wed9:545.510:226.14:220.44:380.25:428:15Waxing Gibbous21Wed
22Thu10:425.511:066.25:130.35:230.25:418:16Waxing Gibbous22Thu
23Fri11:275.411:476.16:010.26:060.35:418:17Full Moon23Fri
24Sat12:105.36:460.26:460.45:408:18Full Moon24Sat
25Sun12:256.112:515.27:280.27:250.55:398:18Full Moon25Sun
26Mon1:016.01:305.18:090.38:020.65:398:19Full Moon26Mon
27Tue1:355.92:085.08:480.38:380.65:388:20Waning Gibbous27Tue
28Wed2:085.82:465.09:260.49:130.75:388:21Waning Gibbous28Wed
29Thu2:415.83:235.010:040.49:510.75:378:22Waning Gibbous29Thu
30Fri3:175.84:035.110:430.510:350.85:378:22Waning Gibbous30Fri
31Sat4:005.74:485.211:250.511:270.85:368:23Third Quarter31Sat
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 12:11 pm — 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 14% 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 Crescent (14% 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