Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 1h 38m at 3:48 pm (0.7 ft)
Next high tide : 9:49 pm (5.9 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:55 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Sep 2078

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:015.18:306.02:430.92:410.86:317:33Waning Crescent1Thu
2Fri9:055.29:316.13:440.83:420.86:327:31Waning Crescent2Fri
3Sat10:035.310:276.14:410.74:400.76:327:29Waning Crescent3Sat
4Sun10:565.411:166.25:340.55:350.66:337:28New Moon4Sun
5Mon11:445.66:220.46:250.66:347:26New Moon5Mon
6Tue12:016.112:295.67:060.47:110.66:357:25New Moon6Tue
7Wed12:446.11:115.77:460.47:550.76:367:23New Moon7Wed
8Thu1:245.91:515.78:240.58:370.86:377:21Waxing Crescent8Thu
9Fri2:035.82:295.68:590.69:170.96:387:20Waxing Crescent9Fri
10Sat2:425.63:075.69:320.79:591.06:397:18Waxing Crescent10Sat
11Sun3:235.43:445.610:040.810:421.16:407:17Waxing Crescent11Sun
12Mon4:065.14:255.610:380.911:301.26:417:15First Quarter12Mon
13Tue4:544.95:105.511:181.06:427:13First Quarter13Tue
14Wed5:484.86:035.512:241.212:071.06:437:12First Quarter14Wed
15Thu6:484.77:035.51:211.21:051.16:447:10First Quarter15Thu
16Fri7:484.78:045.62:201.22:071.06:447:08Waxing Gibbous16Fri
17Sat8:464.99:025.83:171.03:090.96:457:07Waxing Gibbous17Sat
18Sun9:385.19:556.04:110.84:080.76:467:05Waxing Gibbous18Sun
19Mon10:275.410:446.25:020.65:040.56:477:03Waxing Gibbous19Mon
20Tue11:125.711:306.35:510.45:580.36:487:02Full Moon20Tue
21Wed11:565.96:360.36:500.26:497:00Full Moon21Wed
22Thu12:166.412:396.27:210.27:410.26:506:59Full Moon22Thu
23Fri1:026.31:246.38:040.28:320.26:516:57Waning Gibbous23Fri
24Sat1:496.12:116.48:480.29:250.36:526:55Waning Gibbous24Sat
25Sun2:395.93:006.49:350.310:210.56:536:54Waning Gibbous25Sun
26Mon3:335.63:556.310:240.511:200.76:546:52Third Quarter26Mon
27Tue4:325.34:556.111:190.76:556:50Third Quarter27Tue
28Wed5:365.16:005.912:210.912:190.96:566:49Third Quarter28Wed
29Thu6:435.07:095.81:230.91:220.96:576:47Third Quarter29Thu
30Fri7:495.18:165.82:250.92:250.96:586:45Waning Crescent30Fri
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 6:48 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 86% 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 Gibbous (86% 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