Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in New Castle, DE.
Next low tide (tomorrow) : 12:35 am (1.1 ft)
Next high tide : in 1h 58m at 5:37 pm (5.7 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 - Apr 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:245.27:575.11:350.62:210.35:466:26Waxing Gibbous1Wed
2Thu8:205.38:495.32:320.43:120.25:446:27Waxing Gibbous2Thu
3Fri9:105.39:365.43:260.33:590.15:436:28Waxing Gibbous3Fri
4Sat9:555.310:195.64:160.24:420.15:416:29Waxing Gibbous4Sat
5Sun10:375.310:595.65:020.15:220.15:396:30Full Moon5Sun
6Mon11:175.211:355.65:460.16:000.25:386:31Full Moon6Mon
7Tue11:555.16:280.16:350.25:366:32Full Moon7Tue
8Wed12:085.612:315.07:080.17:080.35:356:33Full Moon8Wed
9Thu12:395.61:064.97:470.27:390.45:336:34Waning Gibbous9Thu
10Fri1:085.61:414.88:260.38:100.55:326:35Waning Gibbous10Fri
11Sat1:395.62:194.89:060.48:450.55:306:36Waning Gibbous11Sat
12Sun2:165.63:024.89:490.59:290.65:296:37Waning Gibbous12Sun
13Mon3:025.63:534.810:380.610:240.65:276:38Third Quarter13Mon
14Tue3:575.54:514.811:340.611:300.75:266:39Third Quarter14Tue
15Wed5:025.55:555.012:320.65:246:39Third Quarter15Wed
16Thu6:125.56:585.212:400.61:310.55:236:40Waning Crescent16Thu
17Fri7:205.57:585.61:480.52:280.35:216:41Waning Crescent17Fri
18Sat8:225.78:535.92:530.33:240.25:206:42Waning Crescent18Sat
19Sun9:195.89:466.23:540.14:170.05:186:43Waning Crescent19Sun
20Mon10:135.810:366.44:53-0.15:080.05:176:44New Moon20Mon
21Tue11:055.811:256.55:48-0.25:58-0.15:156:45New Moon21Tue
22Wed11:575.76:42-0.36:480.05:146:46New Moon22Wed
23Thu12:146.512:495.57:35-0.27:370.15:136:47Waxing Crescent23Thu
24Fri1:056.41:435.48:27-0.18:270.35:116:48Waxing Crescent24Fri
25Sat1:576.22:385.29:200.19:190.55:106:49Waxing Crescent25Sat
26Sun3:525.94:355.111:130.311:130.76:097:50First Quarter26Sun
27Mon4:495.75:345.012:060.46:077:51First Quarter27Mon
28Tue5:495.56:335.112:100.81:000.56:067:52First Quarter28Tue
29Wed6:505.37:315.21:070.91:520.56:057:53First Quarter29Wed
30Thu7:495.38:265.42:050.82:430.56:037:54Waxing Gibbous30Thu
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 9:06 pm — 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