Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in New Castle, DE.
Next low tide (tomorrow) : in 1h 51m at 12:35 am (1.1 ft)
Next high tide (tomorrow) : 6:02 am (5.0 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:18 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jun 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:205.37:060.27:010.45:368:23New Moon1Sat
2Sun12:356.31:075.27:540.27:460.65:368:23New Moon2Sun
3Mon1:196.21:545.18:390.38:300.75:358:24Waxing Crescent3Mon
4Tue2:036.02:415.09:230.49:120.85:358:25Waxing Crescent4Tue
5Wed2:465.83:285.010:050.59:560.95:358:25Waxing Crescent5Wed
6Thu3:315.74:165.010:470.610:411.05:348:26Waxing Crescent6Thu
7Fri4:185.55:055.011:290.611:301.15:348:27First Quarter7Fri
8Sat5:085.45:555.112:120.65:348:27First Quarter8Sat
9Sun6:005.26:465.212:231.112:570.65:348:28First Quarter9Sun
10Mon6:565.17:375.31:191.11:430.65:338:28First Quarter10Mon
11Tue7:525.08:275.52:171.02:300.65:338:29Waxing Gibbous11Tue
12Wed8:474.99:155.63:150.93:190.65:338:29Waxing Gibbous12Wed
13Thu9:404.810:015.84:120.84:090.65:338:30Waxing Gibbous13Thu
14Fri10:294.810:456.05:070.64:590.65:338:30Waxing Gibbous14Fri
15Sat11:164.911:286.16:000.55:490.65:338:31Full Moon15Sat
16Sun12:024.96:500.46:390.55:338:31Full Moon16Sun
17Mon12:116.212:475.07:390.37:280.55:338:31Full Moon17Mon
18Tue12:566.31:345.18:260.38:190.45:338:32Waning Gibbous18Tue
19Wed1:446.32:235.29:130.29:100.45:338:32Waning Gibbous19Wed
20Thu2:346.23:155.410:010.210:040.55:348:32Waning Gibbous20Thu
21Fri3:286.14:095.510:500.211:010.55:348:33Waning Gibbous21Fri
22Sat4:246.05:065.711:400.25:348:33Third Quarter22Sat
23Sun5:245.86:055.812:010.612:320.25:348:33Third Quarter23Sun
24Mon6:255.67:055.91:030.61:250.35:358:33Third Quarter24Mon
25Tue7:275.48:046.12:050.62:190.35:358:33Waning Crescent25Tue
26Wed8:285.39:016.23:060.63:130.35:358:33Waning Crescent26Wed
27Thu9:265.29:556.34:060.54:070.45:358:34Waning Crescent27Thu
28Fri10:215.210:456.35:030.45:000.45:368:34Waning Crescent28Fri
29Sat11:125.211:326.25:570.45:500.55:368:34New Moon29Sat
30Sun12:015.26:460.36:380.65:378:34New Moon30Sun
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 3:18 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 neap phase. Tonight's moon is 46% 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 minimum.

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 First Quarter (46% illuminated). This places New Castle, DE in a neap tide cycle, so tidal ranges are near their weekly minimum 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