Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 4h 30m at 9:30 am (0.1 ft)
Next high tide : 2:53 pm (5.5 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Apr 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:505.44:294.811:000.310:520.56:457:26Waning Gibbous1Tue
2Wed4:325.35:174.711:470.411:400.56:437:27Third Quarter2Wed
3Thu5:215.26:114.712:380.56:427:28Third Quarter3Thu
4Fri6:175.17:074.712:360.61:320.56:407:29Third Quarter4Fri
5Sat7:185.18:044.91:360.62:280.56:387:30Third Quarter5Sat
6Sun8:195.28:575.12:380.53:230.46:377:31Waning Crescent6Sun
7Mon9:155.39:475.43:390.34:150.26:357:32Waning Crescent7Mon
8Tue10:085.510:345.64:370.15:060.16:347:33Waning Crescent8Tue
9Wed10:575.611:205.95:320.05:550.06:327:34New Moon9Wed
10Thu11:455.76:26-0.26:43-0.16:317:35New Moon10Thu
11Fri12:046.112:335.77:18-0.37:30-0.16:297:36New Moon11Fri
12Sat12:506.31:225.78:09-0.38:18-0.16:287:37New Moon12Sat
13Sun1:376.32:135.69:01-0.29:080.06:267:38Waxing Crescent13Sun
14Mon2:276.33:075.59:55-0.110:000.26:257:39Waxing Crescent14Mon
15Tue3:226.14:055.410:500.010:560.36:237:40Waxing Crescent15Tue
16Wed4:215.95:075.311:470.211:550.46:227:41First Quarter16Wed
17Thu5:245.76:105.312:450.36:207:42First Quarter17Thu
18Fri6:305.67:145.312:560.51:430.36:197:43First Quarter18Fri
19Sat7:365.58:155.51:570.52:400.26:177:44Waxing Gibbous19Sat
20Sun8:375.59:115.72:570.43:340.26:167:45Waxing Gibbous20Sun
21Mon9:325.610:035.93:540.34:250.16:157:46Waxing Gibbous21Mon
22Tue10:235.610:506.04:480.25:130.06:137:47Waxing Gibbous22Tue
23Wed11:095.611:336.15:390.15:570.06:127:48Full Moon23Wed
24Thu11:535.56:260.06:390.16:117:49Full Moon24Thu
25Fri12:146.012:355.47:100.07:180.26:097:50Full Moon25Fri
26Sat12:526.01:155.37:520.17:550.36:087:51Full Moon26Sat
27Sun1:285.91:555.28:330.28:300.56:077:52Waning Gibbous27Sun
28Mon2:035.82:345.19:120.39:040.56:057:53Waning Gibbous28Mon
29Tue2:365.73:135.09:510.49:380.66:047:54Waning Gibbous29Tue
30Wed3:115.73:544.910:300.510:160.76:037:55Waning Gibbous30Wed
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 12:11 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 14% 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 (14% 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