Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, June 11, 2026
The tide is currently rising in New Castle, DE.
Next low tide : 3:18 pm (0.5 ft)
Next high tide : in 4h 14m at 8:35 am (5.2 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:33 am
Moon phase : Waning Crescent (17% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Dec 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:445.58:125.22:070.02:470.17:044:38Waxing Gibbous1Mon
2Tue8:395.79:085.13:01-0.13:49-0.17:054:38Waxing Gibbous2Tue
3Wed9:326.010:035.13:55-0.24:49-0.27:064:38Full Moon3Wed
4Thu10:246.110:565.04:49-0.35:46-0.37:074:38Full Moon4Thu
5Fri11:156.111:494.95:42-0.36:41-0.37:084:37Full Moon5Fri
6Sat12:086.06:36-0.27:35-0.27:084:37Waning Gibbous6Sat
7Sun12:434.81:025.87:29-0.18:27-0.27:094:37Waning Gibbous7Sun
8Mon1:394.71:575.68:230.09:20-0.17:104:37Waning Gibbous8Mon
9Tue2:364.62:555.49:180.110:110.07:114:37Waning Gibbous9Tue
10Wed3:344.63:535.210:140.211:030.17:124:38Third Quarter10Wed
11Thu4:324.64:515.011:100.311:530.17:134:38Third Quarter11Thu
12Fri5:294.75:484.812:080.47:134:38Third Quarter12Fri
13Sat6:264.86:444.712:430.01:050.37:144:38Third Quarter13Sat
14Sun7:194.97:384.71:310.02:010.37:154:38Waning Crescent14Sun
15Mon8:105.18:294.62:180.02:550.27:164:39Waning Crescent15Mon
16Tue8:575.29:184.53:04-0.13:470.17:164:39Waning Crescent16Tue
17Wed9:425.310:044.53:49-0.14:360.07:174:39Waning Crescent17Wed
18Thu10:235.310:484.44:33-0.15:23-0.17:174:40New Moon18Thu
19Fri11:025.211:294.35:160.06:07-0.17:184:40New Moon19Fri
20Sat11:395.25:560.06:49-0.17:194:40New Moon20Sat
21Sun12:074.212:145.26:360.07:300.07:194:41New Moon21Sun
22Mon12:444.212:485.17:140.08:090.07:204:41Waxing Crescent22Mon
23Tue1:204.21:245.27:530.08:470.07:204:42Waxing Crescent23Tue
24Wed1:564.32:045.28:330.09:260.07:204:43Waxing Crescent24Wed
25Thu2:374.42:495.19:190.010:070.07:214:43Waxing Crescent25Thu
26Fri3:224.63:405.110:110.010:52-0.17:214:44First Quarter26Fri
27Sat4:144.74:364.911:100.111:41-0.17:214:45First Quarter27Sat
28Sun5:114.95:394.812:160.17:224:45First Quarter28Sun
29Mon6:125.16:434.712:35-0.21:230.17:224:46Waxing Gibbous29Mon
30Tue7:145.37:474.61:32-0.22:290.07:224:47Waxing Gibbous30Tue
31Wed8:155.48:504.52:32-0.33:33-0.17:224:48Waxing Gibbous31Wed
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 11:56 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 17% 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 (17% 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