Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 3h 13m at 11:35 pm (0.9 ft)
Next high tide (tomorrow) : 4:56 am (5.5 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Oct 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:595.49:165.93:290.73:360.66:586:45Waning Crescent1Sat
2Sun9:495.610:076.04:210.54:340.46:596:43Waning Crescent2Sun
3Mon10:365.910:566.15:110.35:290.27:006:42New Moon3Mon
4Tue11:226.211:446.25:590.26:240.17:016:40New Moon4Tue
5Wed12:086.46:460.17:160.17:026:39New Moon5Wed
6Thu12:316.112:546.57:330.18:090.17:036:37New Moon6Thu
7Fri1:206.01:436.58:210.19:020.27:046:35Waxing Crescent7Fri
8Sat2:125.92:346.59:110.29:570.37:056:34Waxing Crescent8Sat
9Sun3:075.73:306.310:030.410:540.57:066:32Waxing Crescent9Sun
10Mon4:065.54:306.110:590.511:520.67:076:31First Quarter10Mon
11Tue5:095.35:356.011:590.67:086:29First Quarter11Tue
12Wed6:145.36:415.812:510.61:000.77:096:28First Quarter12Wed
13Thu7:185.37:455.81:490.62:000.77:106:26Waxing Gibbous13Thu
14Fri8:195.58:435.82:450.52:590.67:116:25Waxing Gibbous14Fri
15Sat9:145.79:375.93:390.43:550.57:126:23Waxing Gibbous15Sat
16Sun10:055.810:255.94:280.34:480.47:136:22Waxing Gibbous16Sun
17Mon10:516.011:105.85:150.25:380.37:146:20Full Moon17Mon
18Tue11:346.011:525.75:580.26:250.37:156:19Full Moon18Tue
19Wed12:146.06:390.27:090.37:166:17Full Moon19Wed
20Thu12:325.612:515.97:170.37:500.47:176:16Full Moon20Thu
21Fri1:125.41:265.87:520.48:310.57:186:15Waning Gibbous21Fri
22Sat1:505.32:005.78:270.59:110.67:196:13Waning Gibbous22Sat
23Sun2:295.12:335.79:000.69:510.77:206:12Waning Gibbous23Sun
24Mon3:085.03:085.69:340.610:320.87:216:10Waning Gibbous24Mon
25Tue3:494.93:485.610:130.611:180.87:236:09Waning Gibbous25Tue
26Wed4:354.84:365.511:010.77:246:08Third Quarter26Wed
27Thu5:274.85:325.512:070.811:57 AM0.77:256:07Third Quarter27Thu
28Fri6:244.96:355.51:000.71:000.77:266:05Third Quarter28Fri
29Sat7:225.17:395.51:540.62:040.67:276:04Waning Crescent29Sat
30Sun7:195.47:395.61:490.52:070.46:285:03Waning Crescent30Sun
31Mon8:145.78:365.72:420.33:080.26:295:02Waning Crescent31Mon
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 2:15 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 62% 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 Third Quarter (62% 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