Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in New Castle, DE.
Next low tide : 10:00 am (0.5 ft)
Next high tide : in 1h 49m at 2:41 am (5.8 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:39 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jan 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:345.811:045.05:01-0.65:51-0.67:234:48Full Moon1Fri
2Sat11:255.811:564.95:54-0.66:43-0.77:234:49Full Moon2Sat
3Sun12:155.76:45-0.67:32-0.67:234:50Full Moon3Sun
4Mon12:464.81:045.57:34-0.58:20-0.67:234:51Waning Gibbous4Mon
5Tue1:374.81:545.48:22-0.49:06-0.57:234:51Waning Gibbous5Tue
6Wed2:274.72:435.29:10-0.29:51-0.37:234:52Waning Gibbous6Wed
7Thu3:184.63:335.09:59-0.110:37-0.37:234:53Third Quarter7Thu
8Fri4:094.64:254.810:490.011:23-0.27:234:54Third Quarter8Fri
9Sat5:014.65:194.711:410.17:224:55Third Quarter9Sat
10Sun5:544.66:144.612:09-0.212:360.17:224:56Third Quarter10Sun
11Mon6:474.77:094.512:57-0.21:300.07:224:57Waning Crescent11Mon
12Tue7:394.88:024.51:46-0.22:25-0.17:224:58Waning Crescent12Tue
13Wed8:294.98:534.42:35-0.33:18-0.27:214:59Waning Crescent13Wed
14Thu9:155.09:404.43:23-0.34:10-0.37:215:00Waning Crescent14Thu
15Fri9:585.110:244.44:11-0.44:58-0.47:215:01Waning Crescent15Fri
16Sat10:395.211:054.44:57-0.45:45-0.47:205:03New Moon16Sat
17Sun11:175.211:444.55:42-0.56:29-0.57:205:04New Moon17Sun
18Mon11:545.36:25-0.57:11-0.57:205:05New Moon18Mon
19Tue12:224.512:335.37:09-0.57:53-0.47:195:06Waxing Crescent19Tue
20Wed1:004.61:135.37:52-0.58:35-0.47:185:07Waxing Crescent20Wed
21Thu1:414.71:585.38:39-0.49:18-0.47:185:08Waxing Crescent21Thu
22Fri2:274.82:485.29:30-0.310:05-0.47:175:09Waxing Crescent22Fri
23Sat3:184.93:445.110:26-0.210:56-0.37:175:10First Quarter23Sat
24Sun4:154.94:454.911:29-0.111:51-0.37:165:12First Quarter24Sun
25Mon5:185.05:514.712:34-0.17:155:13First Quarter25Mon
26Tue6:235.16:584.712:51-0.31:39-0.17:155:14Waxing Gibbous26Tue
27Wed7:285.28:024.71:51-0.32:42-0.27:145:15Waxing Gibbous27Wed
28Thu8:305.39:024.82:51-0.43:43-0.37:135:16Waxing Gibbous28Thu
29Fri9:285.59:574.83:49-0.54:40-0.57:125:18Waxing Gibbous29Fri
30Sat10:215.510:494.94:45-0.65:33-0.67:115:19Full Moon30Sat
31Sun11:115.511:394.95:37-0.66:22-0.67:105:20Full Moon31Sun
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 6:20 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 81% 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 Gibbous (81% 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