Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, June 11, 2026
The tide is currently rising in New Castle, DE.
Next low tide : 3:18 pm (0.5 ft)
Next high tide : in 5m at 8:35 am (5.2 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:33 am
Moon phase : Waning Crescent (17% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Aug 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:455.16:185.512:151.112:230.76:018:15First Quarter1Fri
2Sat6:404.97:105.51:091.21:090.86:028:14First Quarter2Sat
3Sun7:374.88:045.62:061.11:590.96:038:13Waxing Gibbous3Sun
4Mon8:354.78:575.73:031.02:520.96:048:11Waxing Gibbous4Mon
5Tue9:294.79:475.83:590.93:460.86:058:10Waxing Gibbous5Tue
6Wed10:194.810:345.94:520.84:400.76:068:09Waxing Gibbous6Wed
7Thu11:054.911:186.05:420.65:310.66:078:08Full Moon7Thu
8Fri11:485.16:280.56:200.56:088:07Full Moon8Fri
9Sat12:006.112:285.27:120.47:080.46:098:06Full Moon9Sat
10Sun12:406.21:075.47:540.47:540.46:108:04Full Moon10Sun
11Mon1:216.21:485.68:340.38:410.46:118:03Waning Gibbous11Mon
12Tue2:036.22:305.89:140.39:300.56:128:02Waning Gibbous12Tue
13Wed2:486.03:166.09:550.310:230.66:138:00Waning Gibbous13Wed
14Thu3:375.84:066.010:390.411:200.86:147:59Third Quarter14Thu
15Fri4:325.65:026.011:280.56:147:58Third Quarter15Fri
16Sat5:325.36:036.012:231.012:240.76:157:56Third Quarter16Sat
17Sun6:395.17:106.01:281.01:250.86:167:55Third Quarter17Sun
18Mon7:485.08:186.02:341.02:290.86:177:54Waning Crescent18Mon
19Tue8:545.09:226.03:370.93:330.86:187:52Waning Crescent19Tue
20Wed9:555.110:206.14:370.84:330.76:197:51Waning Crescent20Wed
21Thu10:515.311:136.25:320.65:300.66:207:49New Moon21Thu
22Fri11:415.46:220.56:220.66:217:48New Moon22Fri
23Sat12:006.212:285.57:080.47:110.66:227:47New Moon23Sat
24Sun12:446.11:135.67:500.47:560.66:237:45New Moon24Sun
25Mon1:266.01:555.68:290.48:390.76:247:44Waxing Crescent25Mon
26Tue2:075.82:355.69:060.59:220.96:257:42Waxing Crescent26Tue
27Wed2:475.63:155.69:400.610:041.06:267:41Waxing Crescent27Wed
28Thu3:295.43:565.610:140.710:491.16:277:39Waxing Crescent28Thu
29Fri4:145.24:385.610:500.811:371.26:287:38First Quarter29Fri
30Sat5:035.05:255.511:300.96:297:36First Quarter30Sat
31Sun5:574.86:175.512:301.312:171.06:297:34First Quarter31Sun
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 11:56 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 17% 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 (17% 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