Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 6h 25m at 10:03 pm (0.6 ft)
Next high tide (tomorrow) : 3:28 am (5.8 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Aug 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:366.14:115.810:400.111:010.66:008:16Waning Gibbous1Sat
2Sun4:285.85:035.711:260.311:530.76:018:15Third Quarter2Sun
3Mon5:215.65:555.712:130.46:028:13Third Quarter3Mon
4Tue6:165.46:495.712:470.81:000.56:038:12Third Quarter4Tue
5Wed7:125.37:435.81:420.91:490.66:048:11Third Quarter5Wed
6Thu8:085.28:365.82:360.82:400.66:058:10Waning Crescent6Thu
7Fri9:025.29:275.93:300.73:300.66:068:09Waning Crescent7Fri
8Sat9:545.210:146.04:220.64:200.56:078:08Waning Crescent8Sat
9Sun10:425.310:586.05:120.55:080.56:088:07Waning Crescent9Sun
10Mon11:265.311:396.05:590.45:550.56:098:05New Moon10Mon
11Tue12:075.36:420.36:400.46:108:04New Moon11Tue
12Wed12:176.012:465.37:240.37:230.46:118:03New Moon12Wed
13Thu12:526.01:215.48:030.38:040.56:128:02New Moon13Thu
14Fri1:266.01:555.58:410.48:460.56:138:00Waxing Crescent14Fri
15Sat2:026.02:315.69:180.49:290.66:137:59Waxing Crescent15Sat
16Sun2:415.93:105.89:550.410:160.76:147:58Waxing Crescent16Sun
17Mon3:255.83:565.910:360.511:090.86:157:56Waxing Crescent17Mon
18Tue4:175.74:496.011:230.56:167:55First Quarter18Tue
19Wed5:165.55:506.012:100.912:180.66:177:54First Quarter19Wed
20Thu6:235.46:566.01:151.01:210.66:187:52First Quarter20Thu
21Fri7:335.38:046.12:210.92:260.66:197:51Waxing Gibbous21Fri
22Sat8:415.49:096.33:250.83:300.56:207:49Waxing Gibbous22Sat
23Sun9:435.610:096.44:260.54:320.46:217:48Waxing Gibbous23Sun
24Mon10:415.711:046.65:230.35:300.36:227:46Full Moon24Mon
25Tue11:355.911:566.66:170.16:260.26:237:45Full Moon25Tue
26Wed12:266.07:070.07:180.26:247:43Full Moon26Wed
27Thu12:456.51:156.07:540.08:080.26:257:42Full Moon27Thu
28Fri1:336.42:026.08:390.18:560.46:267:40Waning Gibbous28Fri
29Sat2:206.22:496.09:220.29:440.56:277:39Waning Gibbous29Sat
30Sun3:076.03:365.910:050.310:320.76:287:37Waning Gibbous30Sun
31Mon3:565.84:245.810:470.511:210.86:287:36Third Quarter31Mon
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 12:45 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 18% 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 Crescent (18% 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