Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 45m at 6:55 pm (0.6 ft)
Next high tide (tomorrow) : 12:35 am (6.0 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:59 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Oct 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:165.17:445.81:530.91:550.96:586:44Waning Crescent1Sun
2Mon8:205.38:465.82:510.82:570.86:596:43Waning Crescent2Mon
3Tue9:185.59:415.93:460.63:550.67:006:41Waning Crescent3Tue
4Wed10:105.710:305.94:370.44:500.57:016:40Waning Crescent4Wed
5Thu10:575.911:155.95:240.35:410.57:026:38New Moon5Thu
6Fri11:406.011:575.86:070.36:280.47:036:36New Moon6Fri
7Sat12:216.06:480.37:120.57:046:35New Moon7Sat
8Sun12:375.712:586.07:250.47:540.67:056:33New Moon8Sun
9Mon1:165.51:345.98:000.58:350.77:066:32Waxing Crescent9Mon
10Tue1:555.32:095.88:330.69:150.87:076:30Waxing Crescent10Tue
11Wed2:345.12:445.79:050.79:560.97:086:29Waxing Crescent11Wed
12Thu3:155.03:205.79:380.810:391.07:096:27Waxing Crescent12Thu
13Fri3:584.84:025.610:170.911:261.07:106:26First Quarter13Fri
14Sat4:464.74:515.511:050.97:116:24First Quarter14Sat
15Sun5:394.75:495.512:171.012:020.97:126:23First Quarter15Sun
16Mon6:374.86:515.51:111.01:040.97:136:21First Quarter16Mon
17Tue7:354.97:525.62:060.92:070.87:146:20Waxing Gibbous17Tue
18Wed8:305.28:505.72:590.73:090.67:156:18Waxing Gibbous18Wed
19Thu9:215.59:435.83:500.54:090.47:166:17Waxing Gibbous19Thu
20Fri10:105.910:335.94:390.35:060.37:176:16Waxing Gibbous20Fri
21Sat10:576.211:225.95:280.26:020.17:196:14Full Moon21Sat
22Sun11:436.46:160.16:560.17:206:13Full Moon22Sun
23Mon12:105.812:296.57:030.17:500.17:216:11Full Moon23Mon
24Tue1:005.71:186.57:520.18:440.27:226:10Waning Gibbous24Tue
25Wed1:525.52:106.48:430.29:390.37:236:09Waning Gibbous25Wed
26Thu2:475.33:066.29:360.410:350.47:246:07Waning Gibbous26Thu
27Fri3:465.14:065.910:330.511:330.67:256:06Third Quarter27Fri
28Sat4:495.05:115.711:330.67:266:05Third Quarter28Sat
29Sun4:545.05:185.612:310.611:35 AM0.76:275:04Third Quarter29Sun
30Mon5:585.16:225.512:280.612:360.76:285:02Third Quarter30Mon
31Tue6:585.27:215.51:230.51:360.66:305:01Waning Crescent31Tue
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 9:45 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 100% 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 Full Moon (100% 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