Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Sunday, July 19, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 2h 00m at 11:02 am (0.2 ft)
Next high tide : 4:37 pm (5.6 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:50 am
Moon phase : First Quarter (32% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jul 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:036.22:435.39:340.29:340.55:388:33Waning Gibbous1Tue
2Wed2:526.23:335.410:210.210:270.55:388:33Waning Gibbous2Wed
3Thu3:446.14:275.611:100.211:250.65:398:33Third Quarter3Thu
4Fri4:426.05:255.712:010.25:398:33Third Quarter4Fri
5Sat5:445.86:255.812:260.612:550.35:408:33Third Quarter5Sat
6Sun6:485.77:276.01:290.61:500.35:418:32Third Quarter6Sun
7Mon7:525.68:276.12:310.62:470.35:418:32Waning Crescent7Mon
8Tue8:545.59:256.33:330.53:430.25:428:32Waning Crescent8Tue
9Wed9:525.510:196.44:330.44:380.25:428:31Waning Crescent9Wed
10Thu10:475.511:106.45:290.25:310.35:438:31New Moon10Thu
11Fri11:385.511:576.46:220.16:220.35:448:31New Moon11Fri
12Sat12:275.57:120.17:100.45:458:30New Moon12Sat
13Sun12:436.31:155.47:580.17:560.55:458:30New Moon13Sun
14Mon1:276.22:015.48:420.28:400.65:468:29Waxing Crescent14Mon
15Tue2:106.02:465.39:230.39:230.75:478:29Waxing Crescent15Tue
16Wed2:535.93:315.310:040.410:060.85:488:28Waxing Crescent16Wed
17Thu3:375.74:165.310:430.410:510.95:488:27Waxing Crescent17Thu
18Fri4:225.65:025.311:230.511:391.05:498:27First Quarter18Fri
19Sat5:115.45:505.312:050.55:508:26First Quarter19Sat
20Sun6:035.26:415.412:311.012:490.65:518:25First Quarter20Sun
21Mon6:595.17:325.51:261.01:370.65:528:25First Quarter21Mon
22Tue7:555.08:245.62:240.92:280.65:528:24Waxing Gibbous22Tue
23Wed8:515.09:145.83:210.83:210.65:538:23Waxing Gibbous23Wed
24Thu9:435.010:035.94:170.74:140.55:548:22Waxing Gibbous24Thu
25Fri10:335.110:486.15:110.55:070.55:558:21Waxing Gibbous25Fri
26Sat11:205.211:336.26:030.45:590.45:568:21Full Moon26Sat
27Sun12:055.36:520.36:490.35:578:20Full Moon27Sun
28Mon12:186.312:505.47:390.27:390.35:588:19Full Moon28Mon
29Tue1:036.41:365.68:250.18:300.35:598:18Waning Gibbous29Tue
30Wed1:506.42:245.79:120.19:210.35:598:17Waning Gibbous30Wed
31Thu2:406.33:145.89:580.110:150.46:008:16Waning Gibbous31Thu
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 1:49 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 32% 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 (32% 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