Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 20m at 3:50 am (1.0 ft)
Next high tide : 9:02 am (5.0 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:09 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - May 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:085.58:445.72:280.63:040.36:037:55Waxing Gibbous1Sun
2Mon9:055.59:365.93:260.53:540.26:027:56Waxing Gibbous2Mon
3Tue9:565.510:246.04:210.34:420.26:007:57Waxing Gibbous3Tue
4Wed10:435.511:086.15:130.25:270.25:597:58Waxing Gibbous4Wed
5Thu11:285.411:496.16:010.26:090.25:587:59Full Moon5Thu
6Fri12:105.36:470.26:490.35:578:00Full Moon6Fri
7Sat12:276.112:515.27:290.27:260.55:568:01Full Moon7Sat
8Sun1:036.01:315.18:100.38:020.65:558:02Full Moon8Sun
9Mon1:385.92:105.08:490.48:360.65:548:03Waning Gibbous9Mon
10Tue2:115.82:494.99:280.49:100.75:538:04Waning Gibbous10Tue
11Wed2:455.73:284.910:070.59:470.75:518:05Waning Gibbous11Wed
12Thu3:215.74:104.910:470.610:300.85:508:06Waning Gibbous12Thu
13Fri4:045.64:554.911:300.611:220.85:498:07Third Quarter13Fri
14Sat4:545.55:465.012:170.65:498:08Third Quarter14Sat
15Sun5:515.56:415.212:210.81:070.65:488:08Third Quarter15Sun
16Mon6:545.47:385.41:260.82:000.55:478:09Third Quarter16Mon
17Tue7:575.48:345.72:310.72:550.55:468:10Waning Crescent17Tue
18Wed8:595.49:286.03:360.63:490.45:458:11Waning Crescent18Wed
19Thu9:565.410:206.34:380.44:440.35:448:12Waning Crescent19Thu
20Fri10:515.511:116.55:370.35:390.35:438:13New Moon20Fri
21Sat11:455.56:340.16:330.25:438:14New Moon21Sat
22Sun12:026.612:395.57:290.07:270.25:428:15New Moon22Sun
23Mon12:546.61:335.48:230.08:210.35:418:16Waxing Crescent23Mon
24Tue1:476.52:295.49:160.09:150.45:408:16Waxing Crescent24Tue
25Wed2:436.33:265.410:080.110:100.55:408:17Waxing Crescent25Wed
26Thu3:406.14:255.411:010.211:070.65:398:18Waxing Crescent26Thu
27Fri4:405.95:245.411:540.25:398:19First Quarter27Fri
28Sat5:395.76:235.512:050.712:460.35:388:20First Quarter28Sat
29Sun6:395.67:205.71:040.71:380.35:378:21First Quarter29Sun
30Mon7:375.48:155.82:020.72:280.35:378:21Waxing Gibbous30Mon
31Tue8:335.49:066.02:590.63:170.35:368:22Waxing Gibbous31Tue
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 6:26 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 13% 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 Crescent (13% 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