Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 3h 16m at 2:03 pm (0.4 ft)
Next high tide : 7:54 pm (5.8 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:35 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Apr 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:265.410:525.34:430.35:190.16:457:26Waning Crescent1Thu
2Fri11:125.511:365.45:320.26:030.06:447:27New Moon2Fri
3Sat11:545.56:190.16:440.06:427:28New Moon3Sat
4Sun12:165.512:345.47:020.17:210.16:407:29New Moon4Sun
5Mon12:535.51:125.37:430.17:560.26:397:30New Moon5Mon
6Tue1:275.51:485.28:230.18:290.36:377:31New Moon6Tue
7Wed1:585.52:245.09:010.28:590.46:367:32Waxing Crescent7Wed
8Thu2:275.53:004.99:390.39:290.56:347:33Waxing Crescent8Thu
9Fri2:575.53:384.810:190.510:020.56:337:34Waxing Crescent9Fri
10Sat3:325.54:214.711:030.610:440.66:317:35Waxing Crescent10Sat
11Sun4:165.55:134.711:550.611:380.76:307:36First Quarter11Sun
12Mon5:115.56:134.712:530.76:287:37First Quarter12Mon
13Tue6:165.47:174.812:430.71:540.66:277:38First Quarter13Tue
14Wed7:275.48:205.11:540.62:540.56:257:39Waxing Gibbous14Wed
15Thu8:365.69:185.43:020.53:520.36:247:40Waxing Gibbous15Thu
16Fri9:385.810:125.74:060.24:470.26:227:41Waxing Gibbous16Fri
17Sat10:345.911:036.15:060.05:390.06:217:42Waxing Gibbous17Sat
18Sun11:276.011:536.36:04-0.26:29-0.16:197:43Full Moon18Sun
19Mon12:196.06:59-0.47:18-0.26:187:44Full Moon19Mon
20Tue12:416.51:105.97:52-0.48:06-0.16:167:45Full Moon20Tue
21Wed1:306.52:015.78:45-0.38:540.06:157:46Waning Gibbous21Wed
22Thu2:206.42:555.59:38-0.29:440.26:147:47Waning Gibbous22Thu
23Fri3:126.23:505.310:310.010:350.46:127:48Waning Gibbous23Fri
24Sat4:076.04:485.111:260.211:300.66:117:49Third Quarter24Sat
25Sun5:055.85:485.012:220.46:107:50Third Quarter25Sun
26Mon6:065.66:495.012:270.81:180.56:087:51Third Quarter26Mon
27Tue7:085.47:495.11:260.82:130.56:077:52Third Quarter27Tue
28Wed8:095.48:455.32:240.83:050.46:067:53Waning Crescent28Wed
29Thu9:045.49:365.53:200.73:550.46:047:54Waning Crescent29Thu
30Fri9:555.510:245.64:140.54:420.36:037:55Waning Crescent30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8551201)

Common Questions About New Castle, DE Tides

Show All
What time does the tide turn (slack tide) in New Castle, DE today?

Slack tide in New Castle, DE is approximately 4:58 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 67% 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 First Quarter (67% 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