Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, June 11, 2026
The tide is currently falling in New Castle, DE.
Next low tide (tomorrow) : in 5h 23m at 4:21 am (0.7 ft)
Next high tide (tomorrow) : 9:36 am (5.2 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:33 am
Moon phase : Waning Crescent (17% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - May 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:475.75:435.112:260.66:017:56First Quarter1Mon
2Tue5:555.66:475.312:290.71:240.66:007:57First Quarter2Tue
3Wed7:045.67:515.51:360.72:210.55:597:58First Quarter3Wed
4Thu8:115.68:505.82:420.53:160.35:587:59Waxing Gibbous4Thu
5Fri9:135.69:466.13:450.44:100.25:578:00Waxing Gibbous5Fri
6Sat10:095.710:386.44:450.25:030.15:568:01Waxing Gibbous6Sat
7Sun11:025.611:276.55:420.15:530.15:548:02Full Moon7Sun
8Mon11:535.66:360.06:410.25:538:03Full Moon8Mon
9Tue12:146.512:425.47:270.07:280.35:528:04Full Moon9Tue
10Wed1:006.41:315.38:160.18:130.55:518:05Waning Gibbous10Wed
11Thu1:456.32:195.29:040.28:580.65:508:06Waning Gibbous11Thu
12Fri2:316.03:095.09:500.49:430.85:498:07Waning Gibbous12Fri
13Sat3:185.84:005.010:360.510:300.95:488:08Waning Gibbous13Sat
14Sun4:075.64:524.911:230.611:201.05:478:09Third Quarter14Sun
15Mon4:595.55:454.912:100.75:478:10Third Quarter15Mon
16Tue5:545.36:395.012:131.112:570.75:468:11Third Quarter16Tue
17Wed6:515.27:335.11:081.11:450.75:458:12Third Quarter17Wed
18Thu7:485.18:255.32:051.02:330.65:448:12Waning Crescent18Thu
19Fri8:425.19:135.53:010.93:200.65:438:13Waning Crescent19Fri
20Sat9:335.09:595.73:560.84:070.65:428:14Waning Crescent20Sat
21Sun10:215.010:405.84:500.64:520.55:428:15Waning Crescent21Sun
22Mon11:065.011:195.95:410.55:370.65:418:16New Moon22Mon
23Tue11:494.911:566.06:300.46:210.65:408:17New Moon23Tue
24Wed12:314.97:180.47:040.65:408:18New Moon24Wed
25Thu12:346.11:124.98:040.47:490.65:398:19New Moon25Thu
26Fri1:146.11:565.08:500.48:350.65:388:19Waxing Crescent26Fri
27Sat1:586.12:435.09:360.49:240.65:388:20Waxing Crescent27Sat
28Sun2:466.13:345.110:240.410:180.65:378:21Waxing Crescent28Sun
29Mon3:406.04:305.311:140.411:170.75:378:22First Quarter29Mon
30Tue4:395.95:295.412:060.45:368:22First Quarter30Tue
31Wed5:425.76:295.612:190.71:000.45:368:23First Quarter31Wed
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 6:58 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 spring phase. Tonight's moon is 17% 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 (17% 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