Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 1h 13m at 10:39 am (0.5 ft)
Next high tide : 4:10 pm (5.8 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:04 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jan 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:064.67:294.41:19-0.11:570.17:234:48Waning Crescent1Mon
2Tue7:574.88:234.52:10-0.22:550.07:234:49Waning Crescent2Tue
3Wed8:465.19:144.53:03-0.33:52-0.27:234:50Waning Crescent3Wed
4Thu9:345.310:034.63:55-0.44:46-0.37:234:51Waning Crescent4Thu
5Fri10:205.510:504.74:47-0.55:39-0.57:234:52New Moon5Fri
6Sat11:075.611:384.75:38-0.66:29-0.67:234:52New Moon6Sat
7Sun11:555.76:29-0.67:19-0.67:234:53New Moon7Sun
8Mon12:274.812:445.77:20-0.78:08-0.77:234:54Waxing Crescent8Mon
9Tue1:174.91:365.68:12-0.78:57-0.67:234:55Waxing Crescent9Tue
10Wed2:104.92:315.59:06-0.69:48-0.67:224:56Waxing Crescent10Wed
11Thu3:054.93:285.410:03-0.510:40-0.57:224:57First Quarter11Thu
12Fri4:035.04:285.211:01-0.411:33-0.57:224:58First Quarter12Fri
13Sat5:035.05:295.012:02-0.37:224:59First Quarter13Sat
14Sun6:045.16:314.812:28-0.51:03-0.27:215:00First Quarter14Sun
15Mon7:055.17:314.81:23-0.52:03-0.37:215:02Waxing Gibbous15Mon
16Tue8:025.28:274.72:17-0.53:02-0.37:215:03Waxing Gibbous16Tue
17Wed8:565.39:204.73:10-0.53:57-0.47:205:04Waxing Gibbous17Wed
18Thu9:455.310:094.74:02-0.54:49-0.57:205:05Waxing Gibbous18Thu
19Fri10:315.310:564.74:50-0.55:37-0.57:195:06Full Moon19Fri
20Sat11:145.311:404.65:36-0.46:21-0.57:195:07Full Moon20Sat
21Sun11:555.26:19-0.47:03-0.47:185:08Full Moon21Sun
22Mon12:224.612:345.17:00-0.37:42-0.37:175:09Full Moon22Mon
23Tue1:034.51:125.07:39-0.28:19-0.37:175:11Waning Gibbous23Tue
24Wed1:424.41:504.98:17-0.28:55-0.27:165:12Waning Gibbous24Wed
25Thu2:204.42:284.88:55-0.19:31-0.27:155:13Waning Gibbous25Thu
26Fri2:584.43:094.79:360.010:07-0.17:155:14Waning Gibbous26Fri
27Sat3:384.43:544.610:220.010:48-0.17:145:15Third Quarter27Sat
28Sun4:234.54:454.511:160.111:34-0.17:135:16Third Quarter28Sun
29Mon5:134.65:434.312:170.27:125:18Third Quarter29Mon
30Tue6:104.76:454.312:27-0.11:200.17:115:19Third Quarter30Tue
31Wed7:094.87:464.31:25-0.12:230.07:115:20Waning Crescent31Wed
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 1:24 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 transitional phase. Tonight's moon is 66% 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 shifting between spring and neap.

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 Third Quarter (66% illuminated). This places New Castle, DE in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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