Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in New Castle, DE.
Next low tide : 4:47 pm (0.6 ft)
Next high tide : in 4h 03m at 10:05 am (5.1 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 6:10 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Mar 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:015.06:26-0.16:53-0.16:355:54Full Moon1Sun
2Mon12:214.912:354.97:06-0.17:260.06:335:55Full Moon2Mon
3Tue12:534.91:084.87:430.07:550.06:325:56Waning Gibbous3Tue
4Wed1:225.01:414.78:210.18:230.16:305:57Waning Gibbous4Wed
5Thu1:515.12:174.69:000.28:530.26:295:58Waning Gibbous5Thu
6Fri2:255.12:584.59:430.39:310.26:275:59Waning Gibbous6Fri
7Sat3:075.23:484.410:340.410:190.36:266:00Third Quarter7Sat
8Sun3:595.24:484.311:360.511:220.46:246:01Third Quarter8Sun
9Mon5:025.15:574.312:410.56:236:02Third Quarter9Mon
10Tue6:155.17:054.512:340.41:460.46:216:03Waning Crescent10Tue
11Wed7:285.38:094.81:460.22:480.36:196:04Waning Crescent11Wed
12Thu8:335.59:065.12:530.03:450.06:186:05Waning Crescent12Thu
13Fri9:315.710:005.43:55-0.24:38-0.26:166:06Waning Crescent13Fri
14Sat10:245.810:505.74:54-0.55:28-0.46:156:07New Moon14Sat
15Sun11:155.911:385.95:49-0.66:16-0.56:136:08New Moon15Sun
16Mon12:055.86:41-0.77:03-0.56:126:09New Moon16Mon
17Tue12:266.012:545.67:33-0.67:48-0.46:106:10Waxing Crescent17Tue
18Wed1:146.01:445.48:25-0.48:34-0.26:086:11Waxing Crescent18Wed
19Thu2:045.92:375.19:17-0.29:220.16:076:12Waxing Crescent19Thu
20Fri2:555.73:324.910:110.110:120.36:056:13First Quarter20Fri
21Sat3:505.54:304.711:070.311:060.56:046:14First Quarter21Sat
22Sun4:495.25:304.612:040.46:026:15First Quarter22Sun
23Mon5:515.16:314.612:040.61:010.56:006:16First Quarter23Mon
24Tue6:545.07:304.71:020.61:560.55:596:17Waxing Gibbous24Tue
25Wed7:525.18:244.92:000.62:490.45:576:18Waxing Gibbous25Wed
26Thu8:455.19:145.02:550.53:370.35:556:19Waxing Gibbous26Thu
27Fri9:335.29:595.23:460.34:220.25:546:20Waxing Gibbous27Fri
28Sat10:165.210:395.34:350.25:030.15:526:21Full Moon28Sat
29Sun10:565.211:165.45:200.15:420.15:516:22Full Moon29Sun
30Mon11:345.111:505.46:030.16:180.25:496:23Full Moon30Mon
31Tue12:095.06:440.16:510.35:476:24Full Moon31Tue
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 1:26 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 6% 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 (6% 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