Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 36m at 9:29 am (0.5 ft)
Next high tide : 2:45 pm (5.5 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Sep 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:435.28:106.12:301.02:290.86:307:33Waning Crescent1Tue
2Wed8:505.39:166.23:330.83:330.76:317:32Waning Crescent2Wed
3Thu9:525.410:166.34:340.64:350.66:327:30Waning Crescent3Thu
4Fri10:485.611:106.45:300.45:330.46:337:28New Moon4Fri
5Sat11:415.86:210.36:270.46:347:27New Moon5Sat
6Sun12:006.412:305.97:100.27:180.36:357:25New Moon6Sun
7Mon12:486.31:165.97:540.28:060.46:367:24New Moon7Mon
8Tue1:336.22:025.98:370.38:530.56:377:22Waxing Crescent8Tue
9Wed2:186.02:465.99:170.49:390.76:377:20Waxing Crescent9Wed
10Thu3:035.83:305.89:570.510:250.86:387:19Waxing Crescent10Thu
11Fri3:495.54:155.810:360.711:131.06:397:17Waxing Crescent11Fri
12Sat4:385.35:035.711:170.86:407:16First Quarter12Sat
13Sun5:315.15:545.612:031.112:020.96:417:14First Quarter13Sun
14Mon6:275.06:485.612:561.112:521.06:427:12First Quarter14Mon
15Tue7:244.97:455.61:511.11:461.06:437:11First Quarter15Tue
16Wed8:215.08:405.72:461.02:410.96:447:09Waxing Gibbous16Wed
17Thu9:145.19:325.83:390.83:360.86:457:07Waxing Gibbous17Thu
18Fri10:035.210:196.04:300.74:290.76:467:06Waxing Gibbous18Fri
19Sat10:485.411:026.15:170.55:200.56:477:04Waxing Gibbous19Sat
20Sun11:295.511:436.16:020.46:090.46:487:02Full Moon20Sun
21Mon12:075.76:450.36:560.46:497:01Full Moon21Mon
22Tue12:226.112:445.97:250.37:420.46:506:59Full Moon22Tue
23Wed1:016.11:216.08:050.38:290.46:516:57Waning Gibbous23Wed
24Thu1:426.02:016.18:440.49:180.56:516:56Waning Gibbous24Thu
25Fri2:275.82:466.29:260.410:100.76:526:54Waning Gibbous25Fri
26Sat3:175.63:366.210:120.611:070.86:536:53Waning Gibbous26Sat
27Sun4:135.44:336.111:050.76:546:51Third Quarter27Sun
28Mon5:165.25:396.012:090.912:070.86:556:49Third Quarter28Mon
29Tue6:255.16:505.91:131.01:120.96:566:48Third Quarter29Tue
30Wed7:355.18:005.92:160.92:180.86:576:46Waning Crescent30Wed
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 12:07 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 84% 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 (84% 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