Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in New Castle, DE.
Next low tide : 3:38 pm (0.5 ft)
Next high tide : in 1h 40m at 9:05 am (5.1 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Dec 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:545.39:164.93:120.03:500.17:044:38Waning Crescent1Sat
2Sun9:375.510:024.93:59-0.14:450.07:054:38New Moon2Sun
3Mon10:205.710:494.84:47-0.15:38-0.17:064:38New Moon3Mon
4Tue11:045.811:364.85:34-0.16:30-0.17:074:38New Moon4Tue
5Wed11:505.96:23-0.17:22-0.17:084:37New Moon5Wed
6Thu12:254.712:405.87:14-0.18:14-0.17:094:37Waxing Crescent6Thu
7Fri1:184.61:345.78:080.09:080.07:104:37Waxing Crescent7Fri
8Sat2:144.62:335.69:050.010:020.07:114:37Waxing Crescent8Sat
9Sun3:154.63:365.410:050.110:580.07:114:37First Quarter9Sun
10Mon4:184.64:415.311:070.111:53-0.17:124:38First Quarter10Mon
11Tue5:224.85:455.112:090.17:134:38First Quarter11Tue
12Wed6:244.96:475.112:48-0.11:110.17:144:38First Quarter12Wed
13Thu7:235.27:455.01:42-0.22:110.07:144:38Waxing Gibbous13Thu
14Fri8:185.48:395.02:33-0.33:09-0.17:154:38Waxing Gibbous14Fri
15Sat9:085.59:294.93:23-0.44:03-0.27:164:39Waxing Gibbous15Sat
16Sun9:555.610:164.94:11-0.44:55-0.37:164:39Full Moon16Sun
17Mon10:385.611:014.84:56-0.35:43-0.37:174:39Full Moon17Mon
18Tue11:195.511:454.65:39-0.36:28-0.37:184:40Full Moon18Tue
19Wed11:595.46:20-0.27:10-0.27:184:40Full Moon19Wed
20Thu12:274.512:375.36:59-0.17:51-0.17:194:41Waning Gibbous20Thu
21Fri1:094.41:155.27:360.08:300.07:194:41Waning Gibbous21Fri
22Sat1:504.31:535.18:130.19:080.07:204:42Waning Gibbous22Sat
23Sun2:314.32:335.08:520.19:470.07:204:42Waning Gibbous23Sun
24Mon3:124.23:154.99:340.110:270.07:214:43Third Quarter24Mon
25Tue3:564.34:024.810:210.211:090.07:214:43Third Quarter25Tue
26Wed4:424.44:534.711:160.211:540.07:214:44Third Quarter26Wed
27Thu5:334.55:504.612:150.27:224:45Third Quarter27Thu
28Fri6:254.76:484.512:42-0.11:180.27:224:45Waning Crescent28Fri
29Sat7:194.97:464.51:33-0.12:210.17:224:46Waning Crescent29Sat
30Sun8:125.18:424.52:27-0.23:230.07:224:47Waning Crescent30Sun
31Mon9:045.39:404.43:22-0.24:22-0.17:224:48Waning Crescent31Mon
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 12:21 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 84% 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 Waxing Gibbous (84% 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