Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in New Castle, DE.
Next low tide (tomorrow) : in 4h 49m at 4:28 am (0.6 ft)
Next high tide (tomorrow) : 9:56 am (5.0 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Apr 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:416.22:085.58:49-0.38:570.06:467:26Waning Gibbous1Thu
2Fri2:276.12:575.29:38-0.19:410.26:447:27Waning Gibbous2Fri
3Sat3:145.93:485.010:270.110:270.46:427:28Waning Gibbous3Sat
4Sun4:035.64:414.911:180.311:160.66:417:29Third Quarter4Sun
5Mon4:565.45:374.712:090.56:397:30Third Quarter5Mon
6Tue5:525.26:354.712:080.81:020.66:387:31Third Quarter6Tue
7Wed6:525.17:334.81:040.81:550.66:367:32Third Quarter7Wed
8Thu7:525.18:294.92:010.82:480.56:357:33Waning Crescent8Thu
9Fri8:485.19:215.12:570.73:370.56:337:34Waning Crescent9Fri
10Sat9:405.210:085.23:520.54:250.46:317:35Waning Crescent10Sat
11Sun10:275.210:515.44:440.45:090.36:307:36Waning Crescent11Sun
12Mon11:105.211:305.55:340.35:510.36:287:37New Moon12Mon
13Tue11:505.16:210.26:310.36:277:38New Moon13Tue
14Wed12:055.612:285.17:060.27:090.36:257:39New Moon14Wed
15Thu12:375.71:055.07:490.27:450.46:247:40New Moon15Thu
16Fri1:095.81:424.98:320.38:210.46:227:41Waxing Crescent16Fri
17Sat1:435.92:224.99:160.39:000.56:217:42Waxing Crescent17Sat
18Sun2:225.93:074.910:030.49:460.66:207:43Waxing Crescent18Sun
19Mon3:095.93:594.910:530.510:400.66:187:44Waxing Crescent19Mon
20Tue4:045.84:594.911:480.611:430.76:177:45First Quarter20Tue
21Wed5:075.76:045.012:470.66:157:46First Quarter21Wed
22Thu6:185.67:105.212:510.71:460.56:147:47First Quarter22Thu
23Fri7:295.68:135.51:580.62:440.46:137:48Waxing Gibbous23Fri
24Sat8:355.69:125.83:030.43:400.26:117:49Waxing Gibbous24Sat
25Sun9:355.710:076.14:050.24:330.16:107:50Waxing Gibbous25Sun
26Mon10:305.710:576.35:040.15:240.06:087:51Waxing Gibbous26Mon
27Tue11:215.711:456.45:59-0.16:130.06:077:52Full Moon27Tue
28Wed12:105.66:52-0.17:000.16:067:53Full Moon28Wed
29Thu12:316.412:585.57:42-0.17:450.26:057:54Full Moon29Thu
30Fri1:166.31:465.38:300.08:290.46:037:55Waning Gibbous30Fri
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 7:12 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 84% 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 Waxing Gibbous (84% 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