Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in New Castle, DE.
Next low tide (tomorrow) : 6:42 am (0.3 ft)
Next high tide : in 1h 59m at 11:25 pm (6.4 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:11 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Mar 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:595.19:334.63:110.14:090.16:355:53Waxing Gibbous1Wed
2Thu9:495.310:184.84:07-0.14:58-0.16:345:54Waxing Gibbous2Thu
3Fri10:365.511:025.15:00-0.35:44-0.26:325:55Full Moon3Fri
4Sat11:215.611:445.35:51-0.56:28-0.36:315:57Full Moon4Sat
5Sun12:065.66:41-0.67:11-0.46:295:58Full Moon5Sun
6Mon12:285.512:525.57:31-0.57:54-0.36:285:59Waning Gibbous6Mon
7Tue1:135.71:405.38:22-0.48:38-0.26:266:00Waning Gibbous7Tue
8Wed2:015.72:325.19:16-0.29:260.06:256:01Waning Gibbous8Wed
9Thu2:535.63:284.810:140.010:190.26:236:02Third Quarter9Thu
10Fri3:505.54:314.611:150.211:180.36:216:03Third Quarter10Fri
11Sat4:555.35:384.412:190.46:206:04Third Quarter11Sat
12Sun6:055.16:464.412:220.51:230.46:186:05Third Quarter12Sun
13Mon7:155.17:514.51:260.52:240.36:176:06Waning Crescent13Mon
14Tue8:195.28:504.72:290.43:220.26:156:07Waning Crescent14Tue
15Wed9:165.39:425.03:280.24:140.16:146:08Waning Crescent15Wed
16Thu10:055.410:295.14:220.15:010.06:126:09New Moon16Thu
17Fri10:495.411:125.25:110.05:43-0.16:106:10New Moon17Fri
18Sat11:305.411:515.35:57-0.16:22-0.16:096:11New Moon18Sat
19Sun12:095.36:390.06:580.06:076:12New Moon19Sun
20Mon12:285.312:475.17:190.07:310.16:066:13Waxing Crescent20Mon
21Tue1:035.31:255.07:580.18:020.26:046:14Waxing Crescent21Tue
22Wed1:365.32:034.88:370.28:320.36:026:15Waxing Crescent22Wed
23Thu2:095.32:434.79:160.49:030.46:016:16Waxing Crescent23Thu
24Fri2:435.23:264.59:590.59:400.55:596:17Waxing Crescent24Fri
25Sat3:225.24:154.410:480.610:280.65:586:18First Quarter25Sat
26Sun4:115.15:114.311:430.711:260.65:566:19First Quarter26Sun
27Mon5:105.16:114.412:430.75:546:20First Quarter27Mon
28Tue6:185.17:114.512:310.61:420.65:536:21First Quarter28Tue
29Wed7:245.28:074.81:370.52:380.55:516:22Waxing Gibbous29Wed
30Thu8:245.48:595.12:410.33:320.35:496:23Waxing Gibbous30Thu
31Fri9:185.69:475.43:410.14:220.15:486:24Waxing Gibbous31Fri
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 3:03 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 2% 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 New Moon (2% 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