Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in New Castle, DE.
Next low tide (tomorrow) : 2:57 am (1.0 ft)
Next high tide : in 3h 52m at 7:34 pm (5.9 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Oct 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:105.91:286.38:070.38:460.46:596:44Waning Gibbous1Sat
2Sun1:565.72:136.38:490.49:380.67:006:42Waning Gibbous2Sun
3Mon2:455.53:036.39:350.510:350.87:016:40Waning Gibbous3Mon
4Tue3:405.33:596.110:280.711:360.97:026:39Third Quarter4Tue
5Wed4:425.05:035.911:290.97:036:37Third Quarter5Wed
6Thu5:514.96:155.812:391.012:341.07:046:36Third Quarter6Thu
7Fri7:014.97:275.71:421.01:411.07:056:34Third Quarter7Fri
8Sat8:085.18:355.82:430.82:460.97:066:33Waning Crescent8Sat
9Sun9:095.39:335.93:400.73:470.77:076:31Waning Crescent9Sun
10Mon10:045.610:255.94:330.54:440.57:086:30Waning Crescent10Mon
11Tue10:535.811:115.95:210.35:360.47:096:28New Moon11Tue
12Wed11:385.911:545.86:060.26:250.47:106:27New Moon12Wed
13Thu12:196.06:470.27:110.47:116:25New Moon13Thu
14Fri12:355.712:586.07:260.37:540.57:126:24New Moon14Fri
15Sat1:165.51:365.98:020.58:360.67:136:22Waxing Crescent15Sat
16Sun1:565.32:125.88:360.69:180.77:146:21Waxing Crescent16Sun
17Mon2:375.12:495.79:080.79:590.87:156:19Waxing Crescent17Mon
18Tue3:194.93:275.69:420.810:430.97:166:18Waxing Crescent18Tue
19Wed4:054.74:095.510:210.911:301.07:176:16First Quarter19Wed
20Thu4:544.64:595.411:081.07:186:15First Quarter20Thu
21Fri5:484.65:565.412:221.012:041.07:196:14First Quarter21Fri
22Sat6:454.66:575.41:151.01:040.97:206:12First Quarter22Sat
23Sun7:424.87:575.52:080.82:060.87:216:11Waxing Gibbous23Sun
24Mon8:355.08:525.63:000.73:060.67:226:09Waxing Gibbous24Mon
25Tue9:245.39:435.73:500.54:040.57:236:08Waxing Gibbous25Tue
26Wed10:105.610:315.84:370.35:000.37:246:07Waxing Gibbous26Wed
27Thu10:545.911:175.85:240.25:540.27:256:06Full Moon27Thu
28Fri11:376.26:090.16:470.17:276:04Full Moon28Fri
29Sat12:035.712:206.36:540.17:390.17:286:03Full Moon29Sat
30Sun12:505.51:066.47:400.18:330.27:296:02Waning Gibbous30Sun
31Mon1:395.31:556.38:280.29:270.37:306:01Waning Gibbous31Mon
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 11:15 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 transitional phase. Tonight's moon is 30% 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 shifting between spring and neap.

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 (30% illuminated). This places New Castle, DE in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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