Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in New Castle, DE.
Next low tide (tomorrow) : in 3h 34m at 2:57 am (1.0 ft)
Next high tide (tomorrow) : 8:08 am (5.0 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Apr 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:455.37:314.91:050.52:060.55:456:26Waning Crescent1Sat
2Sun8:525.59:295.33:140.44:030.36:447:27Waning Crescent2Sun
3Mon9:525.710:225.64:170.14:560.16:427:28Waning Crescent3Mon
4Tue10:475.811:136.05:17-0.15:47-0.16:417:29New Moon4Tue
5Wed11:385.86:14-0.36:36-0.26:397:30New Moon5Wed
6Thu12:016.212:295.87:08-0.47:23-0.26:387:31New Moon6Thu
7Fri12:496.31:195.78:01-0.48:10-0.16:367:32New Moon7Fri
8Sat1:376.32:105.48:54-0.38:570.16:347:33Waxing Crescent8Sat
9Sun2:266.23:035.29:47-0.19:460.36:337:34Waxing Crescent9Sun
10Mon3:186.03:595.010:410.210:380.56:317:35Waxing Crescent10Mon
11Tue4:135.74:574.811:360.411:340.76:307:36First Quarter11Tue
12Wed5:135.55:594.812:330.56:287:37First Quarter12Wed
13Thu6:175.37:014.812:330.81:300.66:277:38First Quarter13Thu
14Fri7:215.28:014.91:330.92:250.66:257:39First Quarter14Fri
15Sat8:215.28:565.12:320.83:170.56:247:40Waxing Gibbous15Sat
16Sun9:165.29:475.33:280.74:060.46:227:41Waxing Gibbous16Sun
17Mon10:065.310:335.54:210.54:520.36:217:42Waxing Gibbous17Mon
18Tue10:515.311:155.65:110.45:340.36:197:43Waxing Gibbous18Tue
19Wed11:335.211:535.75:580.36:130.36:187:44Full Moon19Wed
20Thu12:125.16:430.36:500.46:177:45Full Moon20Thu
21Fri12:285.712:505.07:250.37:250.56:157:46Full Moon21Fri
22Sat1:005.71:264.98:060.37:580.66:147:47Full Moon22Sat
23Sun1:295.72:014.88:460.48:290.66:127:48Waning Gibbous23Sun
24Mon1:595.72:374.79:250.59:020.76:117:49Waning Gibbous24Mon
25Tue2:325.73:164.710:070.69:410.76:107:50Waning Gibbous25Tue
26Wed3:135.74:024.710:520.710:300.86:087:51Waning Gibbous26Wed
27Thu4:035.74:564.811:430.711:290.86:077:52Third Quarter27Thu
28Fri5:015.65:574.912:390.76:067:53Third Quarter28Fri
29Sat6:085.67:015.112:370.81:360.76:047:54Third Quarter29Sat
30Sun7:185.68:035.41:470.72:340.56:037:55Waning Crescent30Sun
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 5:32 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 transitional phase. Tonight's moon is 30% 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 shifting between spring and neap.

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 (30% illuminated). This places New Castle, DE in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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