Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in New Castle, DE.
Next low tide : 11:36 am (0.2 ft)
Next high tide : in 1h 27m at 4:26 am (5.9 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:34 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Aug 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:325.310:566.35:140.45:140.56:028:14Waxing Gibbous1Sat
2Sun11:245.311:446.36:070.36:060.56:038:13Full Moon2Sun
3Mon12:135.46:560.36:540.56:038:12Full Moon3Mon
4Tue12:306.212:595.47:410.37:400.66:048:11Full Moon4Tue
5Wed1:136.11:435.38:230.38:240.76:058:10Waning Gibbous5Wed
6Thu1:556.02:265.39:030.49:050.86:068:09Waning Gibbous6Thu
7Fri2:365.93:085.39:400.59:470.96:078:08Waning Gibbous7Fri
8Sat3:175.73:495.310:160.610:301.06:088:07Waning Gibbous8Sat
9Sun4:005.54:325.310:530.611:161.16:098:05Third Quarter9Sun
10Mon4:465.35:165.411:300.76:108:04Third Quarter10Mon
11Tue5:365.16:045.412:071.112:120.76:118:03Third Quarter11Tue
12Wed6:315.06:565.51:021.21:000.86:128:01Third Quarter12Wed
13Thu7:304.97:515.62:011.11:530.86:138:00Third Quarter13Thu
14Fri8:284.88:465.73:001.02:490.86:147:59Waning Crescent14Fri
15Sat9:234.99:395.93:580.93:470.76:157:58Waning Crescent15Sat
16Sun10:155.010:296.14:530.74:440.66:167:56Waning Crescent16Sun
17Mon11:045.211:166.35:460.55:390.56:177:55New Moon17Mon
18Tue11:505.46:350.46:320.46:177:53New Moon18Tue
19Wed12:036.412:355.67:220.37:230.26:187:52New Moon19Wed
20Thu12:506.41:215.88:080.28:140.26:197:51New Moon20Thu
21Fri1:376.42:085.98:530.19:060.26:207:49Waxing Crescent21Fri
22Sat2:266.32:586.19:390.210:000.36:217:48Waxing Crescent22Sat
23Sun3:186.23:506.110:260.210:560.56:227:46Waxing Crescent23Sun
24Mon4:135.94:466.111:160.311:550.66:237:45First Quarter24Mon
25Tue5:125.65:456.112:090.56:247:43First Quarter25Tue
26Wed6:145.46:476.112:560.81:050.66:257:42First Quarter26Wed
27Thu7:195.37:516.11:580.82:040.76:267:40Waxing Gibbous27Thu
28Fri8:225.28:526.13:000.83:030.76:277:39Waxing Gibbous28Fri
29Sat9:225.39:486.23:580.74:000.76:287:37Waxing Gibbous29Sat
30Sun10:175.410:396.24:530.54:550.66:297:36Waxing Gibbous30Sun
31Mon11:075.511:266.25:440.45:460.66:307:34Full Moon31Mon
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 8:01 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 transitional phase. Tonight's moon is 37% 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 First Quarter (37% 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