Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 15m at 2:48 pm (0.6 ft)
Next high tide : 8:37 pm (6.1 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jun 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:306.11:084.98:010.47:460.65:368:24Full Moon1Wed
2Thu1:136.21:544.98:490.48:350.65:358:24Waning Gibbous2Thu
3Fri2:006.22:445.09:370.49:270.75:358:25Waning Gibbous3Fri
4Sat2:526.13:385.110:270.410:230.75:358:26Waning Gibbous4Sat
5Sun3:496.04:365.211:180.411:230.75:348:26Third Quarter5Sun
6Mon4:495.95:355.412:100.45:348:27Third Quarter6Mon
7Tue5:525.76:365.612:250.71:040.45:348:27Third Quarter7Tue
8Wed6:555.67:365.81:280.71:570.35:348:28Third Quarter8Wed
9Thu7:575.58:346.02:300.62:500.35:348:29Waning Crescent9Thu
10Fri8:565.49:286.23:310.53:430.35:338:29Waning Crescent10Fri
11Sat9:525.310:196.34:300.44:340.35:338:30Waning Crescent11Sat
12Sun10:445.311:076.45:260.35:240.45:338:30New Moon12Sun
13Mon11:345.211:526.36:190.36:120.55:338:30New Moon13Mon
14Tue12:225.17:080.36:580.65:338:31New Moon14Tue
15Wed12:366.21:085.07:540.47:420.75:338:31New Moon15Wed
16Thu1:186.01:545.08:380.48:240.85:338:32Waxing Crescent16Thu
17Fri2:005.92:394.99:190.59:050.95:338:32Waxing Crescent17Fri
18Sat2:415.83:244.99:590.69:461.05:348:32Waxing Crescent18Sat
19Sun3:245.64:094.910:390.610:301.05:348:33Waxing Crescent19Sun
20Mon4:085.54:554.911:190.711:171.15:348:33First Quarter20Mon
21Tue4:555.35:425.011:590.75:348:33First Quarter21Tue
22Wed5:465.26:325.112:101.112:420.75:348:33First Quarter22Wed
23Thu6:415.07:225.31:071.11:270.75:358:33First Quarter23Thu
24Fri7:384.98:125.52:071.12:150.75:358:33Waxing Gibbous24Fri
25Sat8:354.89:025.63:081.03:050.75:358:34Waxing Gibbous25Sat
26Sun9:304.79:505.84:070.93:570.75:368:34Waxing Gibbous26Sun
27Mon10:224.710:386.05:050.74:510.75:368:34Waxing Gibbous27Mon
28Tue11:124.811:256.15:590.65:450.65:368:34Full Moon28Tue
29Wed12:014.96:520.46:390.65:378:34Full Moon29Wed
30Thu12:126.312:505.07:420.37:310.55:378:34Full Moon30Thu
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 5:42 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 20% 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 Crescent (20% 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