Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in New Castle, DE.
Next low tide (tomorrow) : in 4h 24m at 3:56 am (0.8 ft)
Next high tide (tomorrow) : 9:25 am (4.9 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:54 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Aug 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:524.810:096.04:330.84:210.76:028:14Waxing Gibbous1Sun
2Mon10:445.010:596.25:280.65:190.66:038:13Waxing Gibbous2Mon
3Tue11:345.111:486.36:210.56:140.56:048:12Full Moon3Tue
4Wed12:225.37:110.37:080.36:058:11Full Moon4Wed
5Thu12:376.41:105.57:590.28:000.36:068:10Full Moon5Thu
6Fri1:276.51:595.78:460.18:520.26:078:09Waning Gibbous6Fri
7Sat2:176.42:505.89:320.19:460.36:088:08Waning Gibbous7Sat
8Sun3:096.33:425.910:190.110:410.46:088:06Waning Gibbous8Sun
9Mon4:046.04:376.011:080.211:390.66:098:05Third Quarter9Mon
10Tue5:015.85:356.011:590.36:108:04Third Quarter10Tue
11Wed6:005.56:346.012:400.712:520.46:118:03Third Quarter11Wed
12Thu7:025.37:356.11:410.81:470.56:128:01Third Quarter12Thu
13Fri8:045.28:356.12:420.82:440.66:138:00Waning Crescent13Fri
14Sat9:045.29:316.13:420.73:400.76:147:59Waning Crescent14Sat
15Sun10:005.210:236.24:380.64:340.76:157:57Waning Crescent15Sun
16Mon10:515.311:116.25:300.55:260.66:167:56New Moon16Mon
17Tue11:395.311:556.16:180.46:140.66:177:55New Moon17Tue
18Wed12:235.47:020.46:590.76:187:53New Moon18Wed
19Thu12:366.01:055.47:430.47:410.76:197:52New Moon19Thu
20Fri1:156.01:445.48:200.58:210.86:207:50Waxing Crescent20Fri
21Sat1:525.82:215.48:550.68:590.96:217:49Waxing Crescent21Sat
22Sun2:285.72:575.49:280.69:381.06:227:47Waxing Crescent22Sun
23Mon3:055.53:325.49:580.710:181.06:227:46Waxing Crescent23Mon
24Tue3:425.44:085.510:290.711:031.16:237:44Waxing Crescent24Tue
25Wed4:255.24:485.511:050.811:561.26:247:43First Quarter25Wed
26Thu5:145.05:365.611:480.96:257:42First Quarter26Thu
27Fri6:124.86:345.612:561.312:420.96:267:40First Quarter27Fri
28Sat7:174.87:375.72:001.21:440.96:277:38Waxing Gibbous28Sat
29Sun8:224.88:415.93:031.12:500.96:287:37Waxing Gibbous29Sun
30Mon9:225.09:416.14:030.93:550.86:297:35Waxing Gibbous30Mon
31Tue10:175.210:366.35:000.74:570.66:307:34Waxing Gibbous31Tue
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 6:40 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 79% 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 Waxing Gibbous (79% 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