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 : 11:24 am (0.6 ft)
Next high tide : in 3h 03m at 4:32 am (5.4 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 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:155.92:405.69:110.59:300.86:307:33Waning Gibbous1Sat
2Sun2:555.73:195.69:460.610:110.96:317:31Waning Gibbous2Sun
3Mon3:375.53:585.610:200.610:551.06:327:30Waning Gibbous3Mon
4Tue4:215.34:395.610:570.711:441.16:337:28Third Quarter4Tue
5Wed5:095.25:265.611:400.86:347:27Third Quarter5Wed
6Thu6:035.06:195.612:381.112:300.86:357:25Third Quarter6Thu
7Fri7:025.07:185.61:351.11:270.86:367:23Third Quarter7Fri
8Sat8:005.08:165.82:331.02:270.86:377:22Waning Crescent8Sat
9Sun8:575.29:135.93:300.93:270.76:387:20Waning Crescent9Sun
10Mon9:495.410:056.14:240.74:250.56:397:18Waning Crescent10Mon
11Tue10:385.610:546.35:160.55:220.36:407:17Waning Crescent11Tue
12Wed11:255.911:426.46:060.36:150.26:417:15New Moon12Wed
13Thu12:116.16:540.17:080.16:427:14New Moon13Thu
14Fri12:296.512:576.37:400.18:000.16:427:12New Moon14Fri
15Sat1:176.41:446.48:270.18:520.16:437:10Waxing Crescent15Sat
16Sun2:076.32:346.49:140.19:460.36:447:09Waxing Crescent16Sun
17Mon3:006.13:276.410:030.210:420.46:457:07Waxing Crescent17Mon
18Tue3:565.94:246.310:550.411:400.66:467:05First Quarter18Tue
19Wed4:565.65:256.211:510.56:477:04First Quarter19Wed
20Thu5:595.56:296.112:400.712:490.66:487:02First Quarter20Thu
21Fri7:045.47:336.01:400.71:490.76:497:00First Quarter21Fri
22Sat8:075.48:356.12:400.62:480.76:506:59Waxing Gibbous22Sat
23Sun9:065.69:306.13:360.53:450.66:516:57Waxing Gibbous23Sun
24Mon9:595.710:216.24:290.44:390.56:526:55Waxing Gibbous24Mon
25Tue10:485.811:076.25:180.35:300.46:536:54Full Moon25Tue
26Wed11:335.911:506.16:030.26:170.46:546:52Full Moon26Wed
27Thu12:155.96:450.27:020.46:556:51Full Moon27Thu
28Fri12:316.012:545.97:240.37:440.56:566:49Full Moon28Fri
29Sat1:105.81:315.88:010.48:250.66:576:47Full Moon29Sat
30Sun1:485.72:065.88:350.59:040.76:576:46Waning Gibbous30Sun
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 7:58 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 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