Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in New Castle, DE.
Next low tide : 3:42 pm (0.7 ft)
Next high tide : in 1h 44m at 9:02 am (5.0 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:09 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jul 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:415.08:145.62:061.02:140.65:388:34Waning Crescent1Thu
2Fri8:364.99:035.73:021.03:010.75:398:33Waning Crescent2Fri
3Sat9:294.89:505.83:570.83:490.75:398:33Waning Crescent3Sat
4Sun10:194.810:355.94:500.74:380.75:408:33Waning Crescent4Sun
5Mon11:064.811:175.95:410.65:260.75:408:33New Moon5Mon
6Tue11:494.811:566.06:290.56:130.65:418:33New Moon6Tue
7Wed12:314.87:140.56:580.65:428:32New Moon7Wed
8Thu12:356.01:104.97:570.47:430.65:428:32New Moon8Thu
9Fri1:136.01:505.08:390.48:270.55:438:32Waxing Crescent9Fri
10Sat1:536.12:315.29:190.49:140.55:438:31Waxing Crescent10Sat
11Sun2:376.13:155.410:000.410:030.65:448:31Waxing Crescent11Sun
12Mon3:246.04:035.610:430.410:570.75:458:30Waxing Crescent12Mon
13Tue4:155.84:555.711:280.411:570.85:468:30First Quarter13Tue
14Wed5:125.65:525.912:180.45:468:29First Quarter14Wed
15Thu6:145.46:536.01:000.81:120.55:478:29First Quarter15Thu
16Fri7:205.27:566.12:060.92:100.55:488:28Waxing Gibbous16Fri
17Sat8:265.18:586.23:110.83:100.65:498:28Waxing Gibbous17Sat
18Sun9:295.09:576.24:150.74:110.65:498:27Waxing Gibbous18Sun
19Mon10:295.110:536.35:150.65:100.65:508:26Waxing Gibbous19Mon
20Tue11:245.111:456.36:110.46:060.65:518:26Full Moon20Tue
21Wed12:165.27:020.46:580.65:528:25Full Moon21Wed
22Thu12:346.21:065.27:500.37:480.65:538:24Full Moon22Thu
23Fri1:216.11:535.38:340.38:340.75:548:23Waning Gibbous23Fri
24Sat2:066.02:395.39:160.49:190.85:548:22Waning Gibbous24Sat
25Sun2:505.83:245.39:550.410:040.95:558:22Waning Gibbous25Sun
26Mon3:355.64:095.310:340.510:501.05:568:21Waning Gibbous26Mon
27Tue4:215.44:555.411:120.611:391.15:578:20Third Quarter27Tue
28Wed5:095.25:425.411:520.75:588:19Third Quarter28Wed
29Thu6:025.06:325.412:311.212:350.75:598:18Third Quarter29Thu
30Fri6:584.87:255.51:271.21:220.86:008:17Third Quarter30Fri
31Sat7:554.78:185.62:241.12:130.86:018:16Waning 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 12:22 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 13% 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 Crescent (13% 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