Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 5h 28m at 9:26 am (0.5 ft)
Next high tide : 2:42 pm (4.9 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:39 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Sep 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:126.32:426.19:170.19:370.46:307:33Waxing Crescent1Fri
2Sat3:016.13:316.010:010.310:270.66:317:31Waxing Crescent2Sat
3Sun3:505.84:205.910:450.511:170.86:327:30Waxing Crescent3Sun
4Mon4:425.65:115.911:300.66:337:28First Quarter4Mon
5Tue5:365.46:045.812:100.912:170.86:347:26First Quarter5Tue
6Wed6:325.26:595.81:041.01:070.86:357:25First Quarter6Wed
7Thu7:305.17:555.81:580.91:590.96:367:23First Quarter7Thu
8Fri8:265.18:495.82:520.92:520.86:377:22Waxing Gibbous8Fri
9Sat9:205.29:405.93:450.73:440.76:387:20Waxing Gibbous9Sat
10Sun10:095.310:276.04:350.64:350.66:397:18Waxing Gibbous10Sun
11Mon10:555.411:106.05:220.55:240.66:407:17Waxing Gibbous11Mon
12Tue11:365.511:496.06:060.46:110.56:417:15Full Moon12Tue
13Wed12:145.66:470.46:550.56:417:13Full Moon13Wed
14Thu12:266.012:485.67:260.47:380.56:427:12Full Moon14Thu
15Fri1:016.01:215.78:030.48:200.56:437:10Full Moon15Fri
16Sat1:375.91:545.98:390.59:040.66:447:09Waning Gibbous16Sat
17Sun2:145.82:316.09:150.59:500.76:457:07Waning Gibbous17Sun
18Mon2:575.73:146.19:530.610:410.96:467:05Waning Gibbous18Mon
19Tue3:465.54:056.110:390.711:401.06:477:04Third Quarter19Tue
20Wed4:445.45:046.011:350.86:487:02Third Quarter20Wed
21Thu5:505.26:126.012:441.112:400.86:497:00Third Quarter21Thu
22Fri7:015.27:256.01:491.01:490.86:506:59Third Quarter22Fri
23Sat8:105.38:356.12:520.92:560.76:516:57Waning Crescent23Sat
24Sun9:145.59:376.23:530.63:590.66:526:55Waning Crescent24Sun
25Mon10:125.810:346.44:490.44:590.46:536:54Waning Crescent25Mon
26Tue11:056.011:266.45:420.25:550.26:546:52New Moon26Tue
27Wed11:556.26:320.16:480.26:556:50New Moon27Wed
28Thu12:156.412:426.27:180.07:380.26:566:49New Moon28Thu
29Fri1:016.21:286.28:020.18:260.36:566:47Waxing Crescent29Fri
30Sat1:476.02:136.28:450.29:130.46:576:46Waxing Crescent30Sat
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 12:04 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 88% 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 Gibbous (88% 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