Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 20m at 9:00 am (0.2 ft)
Next high tide : 2:26 pm (5.8 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Apr 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:305.42:564.99:350.39:310.46:467:25Waning Gibbous1Sun
2Mon2:595.43:334.810:140.410:020.56:447:26Waning Gibbous2Mon
3Tue3:345.44:164.710:580.510:420.56:437:27Waning Gibbous3Tue
4Wed4:165.45:064.711:480.611:340.66:417:28Third Quarter4Wed
5Thu5:095.46:064.612:470.66:407:29Third Quarter5Thu
6Fri6:135.37:114.712:370.61:490.66:387:30Third Quarter6Fri
7Sat7:245.48:154.91:480.62:500.56:367:31Waning Crescent7Sat
8Sun8:335.59:145.22:570.53:490.36:357:32Waning Crescent8Sun
9Mon9:355.710:095.64:020.24:450.16:337:33Waning Crescent9Mon
10Tue10:325.911:015.95:030.05:37-0.16:327:34Waning Crescent10Tue
11Wed11:256.011:506.26:00-0.36:28-0.26:307:35New Moon11Wed
12Thu12:176.06:55-0.47:16-0.26:297:36New Moon12Thu
13Fri12:386.31:076.07:48-0.58:04-0.26:277:37New Moon13Fri
14Sat1:276.41:595.88:41-0.48:52-0.16:267:38Waxing Crescent14Sat
15Sun2:166.32:515.69:33-0.39:400.16:247:39Waxing Crescent15Sun
16Mon3:086.23:465.410:270.010:310.36:237:40Waxing Crescent16Mon
17Tue4:026.04:445.211:220.211:250.56:217:41First Quarter17Tue
18Wed4:595.75:445.012:180.36:207:42First Quarter18Wed
19Thu6:015.56:455.012:210.71:150.56:187:43First Quarter19Thu
20Fri7:035.47:455.11:200.82:110.56:177:44First Quarter20Fri
21Sat8:055.48:425.22:180.83:050.46:167:45Waxing Gibbous21Sat
22Sun9:015.49:345.43:150.73:550.36:147:46Waxing Gibbous22Sun
23Mon9:535.410:225.54:090.54:430.36:137:47Waxing Gibbous23Mon
24Tue10:405.511:065.75:000.45:270.26:117:48Waxing Gibbous24Tue
25Wed11:245.411:465.75:480.36:090.26:107:49Full Moon25Wed
26Thu12:045.46:330.26:470.36:097:50Full Moon26Thu
27Fri12:245.712:435.27:160.27:240.46:077:51Full Moon27Fri
28Sat12:575.71:205.17:570.27:580.56:067:52Full Moon28Sat
29Sun1:285.71:565.08:370.38:300.66:057:53Waning Gibbous29Sun
30Mon1:575.72:314.99:160.49:010.66:047:54Waning Gibbous30Mon
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 11:43 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 11% 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 Crescent (11% 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