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 52m at 3:42 pm (0.7 ft)
Next high tide : 9:28 pm (6.1 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 1954

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:535.711:166.55:340.05:460.16:037:55New Moon1Sat
2Sun11:475.76:31-0.16:380.16:017:56New Moon2Sun
3Mon12:066.612:395.67:26-0.17:280.16:007:57New Moon3Mon
4Tue12:566.61:325.58:20-0.18:190.25:597:58Waxing Crescent4Tue
5Wed1:476.52:265.39:120.09:100.45:587:59Waxing Crescent5Wed
6Thu2:406.33:225.210:050.110:030.65:578:00Waxing Crescent6Thu
7Fri3:356.04:195.110:580.310:580.75:568:01Waxing Crescent7Fri
8Sat4:335.85:185.111:510.411:540.85:548:02First Quarter8Sat
9Sun5:335.66:175.212:430.55:538:03First Quarter9Sun
10Mon6:335.47:155.312:520.91:350.55:528:04First Quarter10Mon
11Tue7:315.38:105.41:490.92:260.55:518:05First Quarter11Tue
12Wed8:275.39:015.62:460.83:140.45:508:06Waxing Gibbous12Wed
13Thu9:195.39:495.83:400.74:010.45:498:07Waxing Gibbous13Thu
14Fri10:085.310:345.94:320.54:450.45:488:08Waxing Gibbous14Fri
15Sat10:535.211:156.05:220.45:280.45:478:09Waxing Gibbous15Sat
16Sun11:375.111:536.06:090.36:080.55:468:10Full Moon16Sun
17Mon12:175.06:530.36:480.55:468:11Full Moon17Mon
18Tue12:285.912:564.97:360.37:250.65:458:11Full Moon18Tue
19Wed1:015.91:344.98:170.48:010.75:448:12Full Moon19Wed
20Thu1:325.92:104.88:570.58:380.75:438:13Waning Gibbous20Thu
21Fri2:055.92:474.99:370.59:170.75:428:14Waning Gibbous21Fri
22Sat2:435.93:284.910:180.610:010.75:428:15Waning Gibbous22Sat
23Sun3:285.94:155.111:010.610:530.85:418:16Waning Gibbous23Sun
24Mon4:195.85:085.211:490.611:540.85:408:17Third Quarter24Mon
25Tue5:185.76:065.412:400.55:408:18Third Quarter25Tue
26Wed6:225.67:075.61:000.81:350.55:398:18Third Quarter26Wed
27Thu7:285.58:085.92:070.72:310.45:388:19Waning Crescent27Thu
28Fri8:335.59:066.23:130.63:270.35:388:20Waning Crescent28Fri
29Sat9:355.510:026.44:170.54:240.35:378:21Waning Crescent29Sat
30Sun10:325.510:566.65:180.35:200.35:378:21New Moon30Sun
31Mon11:285.411:486.66:160.26:150.35:368:22New Moon31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8551201)

Common Questions About New Castle, DE Tides

Show All
What time does the tide turn (slack tide) in New Castle, DE today?

Slack tide in New Castle, DE is approximately 6:35 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 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