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 (tomorrow) : in 4h 54m at 2:40 am (0.8 ft)
Next high tide (tomorrow) : 8:11 am (5.2 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 - Sep 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:285.39:475.93:530.73:520.76:307:33Waning Crescent1Sun
2Mon10:165.410:336.04:430.64:430.66:317:31Waning Crescent2Mon
3Tue11:015.511:156.05:290.55:320.56:327:30New Moon3Tue
4Wed11:415.611:546.06:120.46:190.46:337:28New Moon4Wed
5Thu12:185.66:530.47:030.46:347:27New Moon5Thu
6Fri12:305.912:535.77:320.47:470.56:357:25New Moon6Fri
7Sat1:055.91:265.98:090.48:300.56:367:23Waxing Crescent7Sat
8Sun1:415.82:026.08:460.59:150.76:377:22Waxing Crescent8Sun
9Mon2:215.72:426.19:230.510:040.86:387:20Waxing Crescent9Mon
10Tue3:065.63:286.110:060.610:580.96:397:19Waxing Crescent10Tue
11Wed3:595.54:236.110:560.711:581.06:397:17First Quarter11Wed
12Thu5:005.35:276.011:570.86:407:15First Quarter12Thu
13Fri6:095.36:376.01:011.01:030.86:417:14First Quarter13Fri
14Sat7:195.37:486.02:050.92:100.76:427:12Waxing Gibbous14Sat
15Sun8:265.48:546.23:060.83:150.66:437:10Waxing Gibbous15Sun
16Mon9:285.79:546.34:050.54:170.46:447:09Waxing Gibbous16Mon
17Tue10:245.910:486.45:000.35:150.36:457:07Waxing Gibbous17Tue
18Wed11:166.211:386.45:510.16:090.26:467:06Full Moon18Wed
19Thu12:056.36:400.17:000.16:477:04Full Moon19Thu
20Fri12:256.312:516.37:250.17:490.26:487:02Full Moon20Fri
21Sat1:116.21:356.38:080.18:370.36:497:01Waning Gibbous21Sat
22Sun1:566.02:196.28:500.39:230.56:506:59Waning Gibbous22Sun
23Mon2:425.83:036.19:310.510:090.76:516:57Waning Gibbous23Mon
24Tue3:295.53:495.910:120.610:560.86:526:56Waning Gibbous24Tue
25Wed4:195.34:375.810:540.811:450.96:536:54Third Quarter25Wed
26Thu5:115.25:285.711:410.96:536:52Third Quarter26Thu
27Fri6:065.16:245.612:361.012:320.96:546:51Third Quarter27Fri
28Sat7:035.17:215.61:291.01:260.96:556:49Third Quarter28Sat
29Sun7:595.18:175.62:210.92:220.86:566:47Waning Crescent29Sun
30Mon8:515.29:095.73:130.73:170.76:576:46Waning Crescent30Mon
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 5:25 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 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