Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, June 11, 2026
The tide is currently falling in New Castle, DE.
Next low tide (tomorrow) : in 6h 22m at 4:21 am (0.7 ft)
Next high tide (tomorrow) : 9:36 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 - Apr 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:595.64:514.711:430.611:260.66:457:26First Quarter1Sat
2Sun4:585.55:564.712:430.76:437:27First Quarter2Sun
3Mon6:075.47:044.812:360.61:460.66:417:28First Quarter3Mon
4Tue7:225.48:105.11:480.52:470.56:407:29Waxing Gibbous4Tue
5Wed8:325.59:125.42:570.43:450.36:387:30Waxing Gibbous5Wed
6Thu9:345.710:075.84:010.14:400.16:377:31Waxing Gibbous6Thu
7Fri10:315.810:596.15:02-0.15:32-0.16:357:32Waxing Gibbous7Fri
8Sat11:245.811:496.35:59-0.36:21-0.26:347:33Full Moon8Sat
9Sun12:145.86:53-0.47:08-0.26:327:34Full Moon9Sun
10Mon12:366.41:035.77:44-0.37:54-0.16:307:35Full Moon10Mon
11Tue1:236.41:525.58:35-0.28:400.16:297:36Waning Gibbous11Tue
12Wed2:096.22:425.39:240.09:250.36:277:37Waning Gibbous12Wed
13Thu2:576.03:335.110:140.210:120.56:267:38Waning Gibbous13Thu
14Fri3:475.84:264.911:040.411:010.76:247:39Waning Gibbous14Fri
15Sat4:405.55:224.811:560.511:540.96:237:40Third Quarter15Sat
16Sun5:365.36:204.812:480.66:227:41Third Quarter16Sun
17Mon6:365.27:184.812:500.91:400.76:207:42Third Quarter17Mon
18Tue7:365.18:145.01:470.92:320.66:197:43Third Quarter18Tue
19Wed8:325.29:075.22:440.83:210.56:177:44Waning Crescent19Wed
20Thu9:255.29:545.33:390.74:090.46:167:45Waning Crescent20Thu
21Fri10:135.210:385.54:310.54:530.46:147:46Waning Crescent21Fri
22Sat10:585.211:185.65:210.45:360.46:137:47Waning Crescent22Sat
23Sun11:395.111:545.76:090.36:160.46:127:48New Moon23Sun
24Mon12:185.06:550.36:540.46:107:49New Moon24Mon
25Tue12:275.812:555.07:380.37:310.56:097:50New Moon25Tue
26Wed12:585.81:334.98:220.38:080.56:087:51New Moon26Wed
27Thu1:315.92:124.99:050.48:470.66:067:52Waxing Crescent27Thu
28Fri2:095.92:554.99:500.59:300.66:057:53Waxing Crescent28Fri
29Sat2:545.93:444.910:380.610:220.76:047:54Waxing Crescent29Sat
30Sun3:465.84:415.011:300.611:230.76:037:55First Quarter30Sun
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 6:58 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