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 1h 14m 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 - Jul 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:016.31:395.18:300.38:240.45:388:33Waning Gibbous1Fri
2Sat1:526.32:315.39:180.29:180.45:388:33Waning Gibbous2Sat
3Sun2:456.23:245.410:060.210:130.45:398:33Waning Gibbous3Sun
4Mon3:396.14:195.610:550.211:100.55:398:33Waning Gibbous4Mon
5Tue4:365.95:155.711:450.25:408:33Third Quarter5Tue
6Wed5:345.76:145.812:090.612:360.25:418:32Third Quarter6Wed
7Thu6:345.57:126.01:100.71:280.35:418:32Third Quarter7Thu
8Fri7:355.38:106.12:110.72:210.45:428:32Waning Crescent8Fri
9Sat8:345.29:066.13:120.73:140.45:438:31Waning Crescent9Sat
10Sun9:315.19:596.24:110.64:080.55:438:31Waning Crescent10Sun
11Mon10:255.110:486.25:070.55:000.65:448:31Waning Crescent11Mon
12Tue11:155.111:346.15:590.55:490.65:458:30New Moon12Tue
13Wed12:035.16:470.46:360.75:458:30New Moon13Wed
14Thu12:176.012:485.07:310.47:200.75:468:29New Moon14Thu
15Fri12:586.01:315.08:120.58:010.85:478:29New Moon15Fri
16Sat1:375.92:125.08:500.58:400.95:488:28Waxing Crescent16Sat
17Sun2:155.82:525.09:260.69:190.95:488:27Waxing Crescent17Sun
18Mon2:535.63:315.110:010.69:591.05:498:27Waxing Crescent18Mon
19Tue3:315.54:105.110:340.610:421.05:508:26Waxing Crescent19Tue
20Wed4:125.44:505.211:080.611:311.15:518:25First Quarter20Wed
21Thu4:575.25:345.311:460.75:528:25First Quarter21Thu
22Fri5:495.06:235.412:271.212:290.75:528:24First Quarter22Fri
23Sat6:484.87:185.51:291.21:200.85:538:23First Quarter23Sat
24Sun7:514.78:165.72:331.22:180.85:548:22Waxing Gibbous24Sun
25Mon8:544.79:155.93:371.13:200.85:558:21Waxing Gibbous25Mon
26Tue9:524.810:116.14:370.94:230.75:568:21Waxing Gibbous26Tue
27Wed10:474.911:056.35:340.75:240.65:578:20Full Moon27Wed
28Thu11:395.111:566.46:280.56:210.45:588:19Full Moon28Thu
29Fri12:305.37:180.37:160.35:598:18Full Moon29Fri
30Sat12:486.51:205.58:070.18:100.26:008:17Full Moon30Sat
31Sun1:386.52:115.78:540.19:030.26:008:16Waning Gibbous31Sun
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