Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in New Castle, DE.
Next low tide (tomorrow) : 9:29 am (0.5 ft)
Next high tide (tomorrow) : in 2h 48m at 2:18 am (5.9 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:01 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - May 1965

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:215.47:060.17:090.36:027:55New Moon1Sat
2Sun12:336.11:055.37:550.17:520.46:017:56New Moon2Sun
3Mon1:146.21:515.28:440.28:370.46:007:57Waxing Crescent3Mon
4Tue1:586.22:425.19:350.39:260.65:597:58Waxing Crescent4Tue
5Wed2:486.23:375.010:290.410:210.75:577:59Waxing Crescent5Wed
6Thu3:446.04:385.011:250.511:230.85:568:00First Quarter6Thu
7Fri4:485.85:435.012:240.55:558:01First Quarter7Fri
8Sat5:585.76:495.112:270.81:230.55:548:02First Quarter8Sat
9Sun7:085.67:535.41:330.82:210.45:538:03First Quarter9Sun
10Mon8:145.68:535.62:360.63:170.35:528:04Waxing Gibbous10Mon
11Tue9:145.69:475.93:370.54:090.25:518:05Waxing Gibbous11Tue
12Wed10:085.710:366.14:350.34:590.15:508:06Waxing Gibbous12Wed
13Thu10:575.711:226.35:290.25:460.15:498:07Full Moon13Thu
14Fri11:435.66:190.16:300.25:488:08Full Moon14Fri
15Sat12:056.312:275.57:070.17:110.35:478:09Full Moon15Sat
16Sun12:456.21:105.37:510.27:500.55:468:10Full Moon16Sun
17Mon1:246.11:535.28:340.38:270.65:458:11Waning Gibbous17Mon
18Tue2:026.02:365.09:160.49:030.85:448:12Waning Gibbous18Tue
19Wed2:405.93:204.99:570.59:400.95:448:13Waning Gibbous19Wed
20Thu3:205.74:054.810:380.610:200.95:438:14Waning Gibbous20Thu
21Fri4:025.64:534.811:210.711:071.05:428:14Third Quarter21Fri
22Sat4:495.55:434.812:070.75:418:15Third Quarter22Sat
23Sun5:425.46:354.912:001.012:550.75:418:16Third Quarter23Sun
24Mon6:405.37:285.012:591.01:450.75:408:17Third Quarter24Mon
25Tue7:385.38:195.21:590.92:350.65:398:18Waning Crescent25Tue
26Wed8:355.39:085.53:000.83:240.55:398:19Waning Crescent26Wed
27Thu9:295.39:555.83:590.74:140.55:388:19Waning Crescent27Thu
28Fri10:195.310:396.04:560.55:030.45:388:20Waning Crescent28Fri
29Sat11:085.311:246.25:520.45:510.45:378:21New Moon29Sat
30Sun11:575.36:460.36:400.45:378:22New Moon30Sun
31Mon12:096.412:465.27:380.27:300.45:368:22New 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 5:53 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 91% 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 (91% 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