Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in New Castle, DE.
Next low tide : 5:59 pm (0.5 ft)
Next high tide : in 3h 20m at 11:16 am (5.2 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:45 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Apr 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:395.48:225.01:580.52:560.45:456:26Waxing Gibbous1Mon
2Tue8:405.69:155.33:020.23:500.25:446:27Waxing Gibbous2Tue
3Wed9:365.810:045.74:020.04:420.05:426:28Waxing Gibbous3Wed
4Thu10:275.910:526.04:59-0.25:30-0.15:416:29Full Moon4Thu
5Fri11:175.911:396.25:54-0.46:17-0.25:396:30Full Moon5Fri
6Sat12:065.86:47-0.47:04-0.25:386:31Full Moon6Sat
7Sun12:276.312:575.67:39-0.47:50-0.15:366:32Waning Gibbous7Sun
8Mon1:156.31:495.48:32-0.28:380.15:346:33Waning Gibbous8Mon
9Tue2:076.12:445.29:270.09:300.45:336:34Waning Gibbous9Tue
10Wed3:015.93:434.910:230.210:250.65:316:35Third Quarter10Wed
11Thu4:005.74:454.811:220.411:240.85:306:36Third Quarter11Thu
12Fri5:045.45:494.812:210.55:286:37Third Quarter12Fri
13Sat6:115.36:524.812:250.81:190.65:276:38Third Quarter13Sat
14Sun7:145.37:505.01:260.82:140.55:256:39Waning Crescent14Sun
15Mon8:125.38:435.22:240.73:060.45:246:40Waning Crescent15Mon
16Tue9:045.49:315.43:190.53:530.35:226:41Waning Crescent16Tue
17Wed9:505.410:145.64:100.44:370.25:216:42Waning Crescent17Wed
18Thu10:335.410:545.64:570.35:170.25:196:43New Moon18Thu
19Fri11:135.311:315.75:420.25:540.35:186:44New Moon19Fri
20Sat11:515.26:240.26:290.45:176:45New Moon20Sat
21Sun12:045.712:285.17:040.37:020.55:156:46New Moon21Sun
22Mon12:355.61:044.97:430.47:320.65:146:47Waxing Crescent22Mon
23Tue1:035.61:404.88:220.58:020.75:126:48Waxing Crescent23Tue
24Wed1:335.72:184.79:020.68:360.75:116:49Waxing Crescent24Wed
25Thu2:085.73:004.79:450.79:190.85:106:50Waxing Crescent25Thu
26Fri2:525.63:494.710:340.810:120.85:086:51First Quarter26Fri
27Sat3:455.64:474.711:280.811:160.85:076:52First Quarter27Sat
28Sun5:495.56:504.91:270.76:067:53First Quarter28Sun
29Mon6:595.57:525.11:250.82:250.66:047:54First Quarter29Mon
30Tue8:085.68:515.52:340.63:210.56:037:55Waxing Gibbous30Tue
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 2:37 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 spring phase. Tonight's moon is 1% 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 (1% 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