Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently rising in New Castle, DE.
Next low tide (tomorrow) : 7:31 am (0.2 ft)
Next high tide (tomorrow) : in 1h 59m at 12:18 am (6.4 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:11 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Oct 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:575.86:360.47:000.55:575:46Full Moon1Wed
2Thu12:165.712:316.07:110.57:440.65:585:44Waning Gibbous2Thu
3Fri12:545.61:076.17:460.58:310.85:595:43Waning Gibbous3Fri
4Sat1:365.41:496.18:240.69:230.96:005:41Waning Gibbous4Sat
5Sun2:245.32:396.19:090.710:211.06:015:40Third Quarter5Sun
6Mon3:225.13:385.910:060.911:251.16:025:38Third Quarter6Mon
7Tue4:284.94:485.811:141.06:035:36Third Quarter7Tue
8Wed5:414.96:035.812:291.112:261.06:045:35Third Quarter8Wed
9Thu6:515.07:165.91:330.91:340.86:055:33Waning Crescent9Thu
10Fri7:565.38:206.02:320.72:390.66:065:32Waning Crescent10Fri
11Sat8:555.69:176.13:280.43:390.46:075:30Waning Crescent11Sat
12Sun9:475.910:086.24:200.24:350.36:085:29New Moon12Sun
13Mon10:366.110:566.15:090.15:280.26:095:27New Moon13Mon
14Tue11:226.211:416.05:540.16:180.26:105:26New Moon14Tue
15Wed12:066.26:370.17:060.26:115:24New Moon15Wed
16Thu12:265.812:496.27:180.27:520.46:125:23Waxing Crescent16Thu
17Fri1:105.51:316.07:570.48:370.66:135:21Waxing Crescent17Fri
18Sat1:565.32:145.98:360.69:230.76:145:20Waxing Crescent18Sat
19Sun2:435.12:595.79:160.810:110.86:155:18Waxing Crescent19Sun
20Mon3:344.93:485.610:000.911:000.96:175:17First Quarter20Mon
21Tue4:284.84:415.510:491.011:520.96:185:15First Quarter21Tue
22Wed5:244.75:395.411:431.06:195:14First Quarter22Wed
23Thu6:214.86:375.412:440.812:400.96:205:13First Quarter23Thu
24Fri7:164.97:325.51:360.71:370.86:215:11Waxing Gibbous24Fri
25Sat8:075.18:235.62:260.62:330.76:225:10Waxing Gibbous25Sat
26Sun8:535.39:095.63:130.43:260.56:235:09Waxing Gibbous26Sun
27Mon9:355.59:525.63:580.34:170.46:245:07Waxing Gibbous27Mon
28Tue10:145.710:335.64:410.35:060.36:255:06Full Moon28Tue
29Wed10:505.811:125.55:220.25:550.36:265:05Full Moon29Wed
30Thu11:276.011:535.46:020.26:420.36:275:04Full Moon30Thu
31Fri12:056.16:410.37:310.46:295:02Waning Gibbous31Fri
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 3:54 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 0% 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 New Moon (0% 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