Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently rising in New Castle, DE.
Next low tide (tomorrow) : 12:25 am (1.1 ft)
Next high tide : in 1h 54m at 5:02 pm (5.9 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:05 am
Moon phase : Third Quarter (55% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Sep 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:115.75:416.012:010.56:307:34Third Quarter1Fri
2Sat6:095.56:395.912:440.712:520.66:317:32Third Quarter2Sat
3Sun7:085.47:365.91:410.81:460.76:327:30Third Quarter3Sun
4Mon8:065.38:326.02:370.82:390.76:337:29Waning Crescent4Mon
5Tue9:015.49:256.03:300.73:320.76:347:27Waning Crescent5Tue
6Wed9:535.510:136.14:220.64:230.66:347:26Waning Crescent6Wed
7Thu10:415.610:586.15:100.45:120.56:357:24Waning Crescent7Thu
8Fri11:255.611:396.15:540.45:580.56:367:22New Moon8Fri
9Sat12:065.66:360.36:420.56:377:21New Moon9Sat
10Sun12:186.012:435.67:150.47:230.56:387:19New Moon10Sun
11Mon12:545.91:175.67:520.48:040.66:397:18New Moon11Mon
12Tue1:275.81:495.68:260.58:430.76:407:16Waxing Crescent12Tue
13Wed2:005.72:185.78:590.69:220.86:417:14Waxing Crescent13Wed
14Thu2:335.62:515.89:300.610:040.96:427:13Waxing Crescent14Thu
15Fri3:125.53:305.910:040.610:531.06:437:11Waxing Crescent15Fri
16Sat3:585.44:185.910:470.711:501.16:447:09First Quarter16Sat
17Sun4:545.35:165.911:410.86:457:08First Quarter17Sun
18Mon5:595.26:245.912:541.112:480.86:467:06First Quarter18Mon
19Tue7:105.27:366.01:591.01:590.86:467:05Waxing Gibbous19Tue
20Wed8:195.48:446.23:020.83:070.76:477:03Waxing Gibbous20Wed
21Thu9:225.69:466.44:020.64:110.56:487:01Waxing Gibbous21Thu
22Fri10:195.910:436.54:590.35:120.36:497:00Waxing Gibbous22Fri
23Sat11:136.211:366.65:520.16:090.16:506:58Full Moon23Sat
24Sun12:046.36:430.07:030.06:516:56Full Moon24Sun
25Mon12:276.612:546.47:32-0.17:550.06:526:55Full Moon25Mon
26Tue1:176.41:426.48:190.08:470.16:536:53Waning Gibbous26Tue
27Wed2:066.22:316.49:050.19:380.36:546:51Waning Gibbous27Wed
28Thu2:576.03:216.29:510.310:290.56:556:50Waning Gibbous28Thu
29Fri3:495.74:126.110:370.511:210.66:566:48Third Quarter29Fri
30Sat4:435.55:065.911:260.76:576:47Third Quarter30Sat
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 8:43 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 neap phase. Tonight's moon is 55% 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 minimum.

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 Third Quarter (55% illuminated). This places New Castle, DE in a neap tide cycle, so tidal ranges are near their weekly minimum 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