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 4h 55m 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 - Jul 1965

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:366.52:185.39:060.19:040.45:388:33Waxing Crescent1Thu
2Fri2:326.43:155.49:570.110:000.45:388:33Waxing Crescent2Fri
3Sat3:296.24:125.510:490.110:570.55:398:33Waxing Crescent3Sat
4Sun4:286.05:105.611:400.211:550.65:398:33First Quarter4Sun
5Mon5:275.86:085.712:310.25:408:33First Quarter5Mon
6Tue6:265.67:065.812:540.61:230.35:408:33First Quarter6Tue
7Wed7:245.58:025.91:530.72:140.35:418:32First Quarter7Wed
8Thu8:215.38:556.12:520.63:040.35:428:32Waxing Gibbous8Thu
9Fri9:155.39:456.13:480.63:540.45:428:32Waxing Gibbous9Fri
10Sat10:075.210:326.24:420.54:420.45:438:31Waxing Gibbous10Sat
11Sun10:555.211:166.25:330.45:280.55:448:31Full Moon11Sun
12Mon11:415.111:576.16:200.46:130.65:448:30Full Moon12Mon
13Tue12:255.17:040.36:550.65:458:30Full Moon13Tue
14Wed12:366.01:065.07:460.47:350.75:468:29Full Moon14Wed
15Thu1:135.91:465.08:250.48:130.75:468:29Full Moon15Thu
16Fri1:495.92:235.09:020.58:500.85:478:28Waning Gibbous16Fri
17Sat2:235.82:595.09:370.59:270.85:488:28Waning Gibbous17Sat
18Sun2:585.73:345.110:110.510:070.95:498:27Waning Gibbous18Sun
19Mon3:365.74:125.210:460.510:520.95:508:26Waning Gibbous19Mon
20Tue4:185.64:545.411:220.511:451.05:508:26Third Quarter20Tue
21Wed5:085.45:435.512:050.55:518:25Third Quarter21Wed
22Thu6:055.36:395.712:461.012:540.65:528:24Third Quarter22Thu
23Fri7:095.17:395.81:541.01:500.65:538:23Waning Crescent23Fri
24Sat8:165.08:416.03:011.02:520.65:548:23Waning Crescent24Sat
25Sun9:205.19:416.24:070.83:570.65:558:22Waning Crescent25Sun
26Mon10:205.210:396.45:090.65:010.55:568:21Waning Crescent26Mon
27Tue11:175.311:356.56:070.46:010.45:568:20New Moon27Tue
28Wed12:125.47:020.26:590.35:578:19New Moon28Wed
29Thu12:306.61:075.57:540.17:550.25:588:18New Moon29Thu
30Fri1:246.52:005.68:440.08:490.25:598:17Waxing Crescent30Fri
31Sat2:186.42:545.79:330.09:430.36:008:16Waxing Crescent31Sat
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