Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 5h 51m at 6:07 am (0.4 ft)
Next high tide : 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 - Oct 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:355.61:545.78:220.68:500.86:586:45Waning Gibbous1Tue
2Wed2:125.42:275.78:530.79:300.96:596:43Waning Gibbous2Wed
3Thu2:505.23:005.69:220.810:111.07:006:41Waning Gibbous3Thu
4Fri3:315.03:355.69:540.910:561.17:016:40Waning Gibbous4Fri
5Sat4:154.84:165.610:320.911:471.27:026:38Third Quarter5Sat
6Sun5:054.75:075.511:221.07:036:37Third Quarter6Sun
7Mon6:034.66:085.512:431.212:211.07:046:35Third Quarter7Mon
8Tue7:054.77:155.61:411.11:261.07:056:34Third Quarter8Tue
9Wed8:054.98:195.72:391.02:320.87:066:32Waning Crescent9Wed
10Thu9:015.29:185.93:340.83:340.67:076:30Waning Crescent10Thu
11Fri9:525.510:116.14:260.54:340.47:086:29Waning Crescent11Fri
12Sat10:415.811:006.25:150.35:300.27:096:27New Moon12Sat
13Sun11:276.111:486.26:030.16:250.17:106:26New Moon13Sun
14Mon12:136.46:490.07:180.07:116:24New Moon14Mon
15Tue12:366.112:596.57:350.08:110.07:126:23New Moon15Tue
16Wed1:255.91:476.58:220.19:050.17:136:21Waxing Crescent16Wed
17Thu2:175.72:386.49:100.310:000.37:146:20Waxing Crescent17Thu
18Fri3:115.43:336.210:010.410:570.57:156:19Waxing Crescent18Fri
19Sat4:105.24:336.010:570.611:570.77:166:17First Quarter19Sat
20Sun5:135.05:375.811:560.87:176:16First Quarter20Sun
21Mon6:194.96:445.712:570.712:580.97:186:14First Quarter21Mon
22Tue7:245.07:495.61:550.72:000.87:196:13First Quarter22Tue
23Wed8:245.18:485.62:510.62:590.87:216:12Waxing Gibbous23Wed
24Thu9:205.39:405.73:440.53:550.67:226:10Waxing Gibbous24Thu
25Fri10:095.510:275.74:320.34:480.57:236:09Waxing Gibbous25Fri
26Sat10:545.711:115.65:170.25:370.47:246:08Waxing Gibbous26Sat
27Sun10:365.710:525.54:580.25:230.46:255:06Full Moon27Sun
28Mon11:145.711:315.45:370.36:060.46:265:05Full Moon28Mon
29Tue11:495.76:130.36:480.56:275:04Full Moon29Tue
30Wed12:095.212:225.66:460.57:280.66:285:03Full Moon30Wed
31Thu12:475.012:535.67:180.68:080.76:295:01Waning Gibbous31Thu
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 8:41 am — 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