Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 2h 57m at 12:25 pm (0.3 ft)
Next high tide : 6:05 pm (5.5 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:34 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - May 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:066.21:315.58:100.08:160.36:027:56Full Moon1Tue
2Wed1:466.12:145.38:530.28:530.56:017:57Waning Gibbous2Wed
3Thu2:255.92:585.29:350.39:310.66:007:58Waning Gibbous3Thu
4Fri3:055.83:425.010:170.410:090.75:587:59Waning Gibbous4Fri
5Sat3:465.74:304.911:000.510:510.85:578:00Waning Gibbous5Sat
6Sun4:315.55:194.911:460.611:390.95:568:01Third Quarter6Sun
7Mon5:215.46:124.912:340.65:558:02Third Quarter7Mon
8Tue6:165.37:064.912:340.91:250.65:548:03Third Quarter8Tue
9Wed7:155.38:005.11:320.92:160.65:538:03Third Quarter9Wed
10Thu8:125.38:515.32:320.83:080.55:528:04Waning Crescent10Thu
11Fri9:075.39:385.53:300.63:580.45:518:05Waning Crescent11Fri
12Sat9:585.410:235.84:270.54:470.35:508:06Waning Crescent12Sat
13Sun10:465.511:066.05:220.35:340.35:498:07Waning Crescent13Sun
14Mon11:325.511:486.26:140.26:210.25:488:08New Moon14Mon
15Tue12:185.57:060.17:080.25:478:09New Moon15Tue
16Wed12:316.31:065.57:570.07:560.35:468:10New Moon16Wed
17Thu1:166.41:565.48:480.08:450.35:458:11Waxing Crescent17Thu
18Fri2:056.42:495.49:400.19:380.45:448:12Waxing Crescent18Fri
19Sat2:586.33:465.310:330.210:340.55:448:13Waxing Crescent19Sat
20Sun3:576.14:475.311:290.311:340.65:438:14First Quarter20Sun
21Mon5:005.95:505.412:250.35:428:15First Quarter21Mon
22Tue6:065.86:535.512:360.71:220.35:418:15First Quarter22Tue
23Wed7:115.77:545.71:380.62:180.35:418:16First Quarter23Wed
24Thu8:145.78:525.92:390.53:120.25:408:17Waxing Gibbous24Thu
25Fri9:125.79:456.13:380.44:040.15:398:18Waxing Gibbous25Fri
26Sat10:045.610:336.24:350.34:530.15:398:19Waxing Gibbous26Sat
27Sun10:535.611:186.35:280.25:400.15:388:20Full Moon27Sun
28Mon11:405.56:170.16:240.25:388:20Full Moon28Mon
29Tue12:016.312:245.47:040.17:060.35:378:21Full Moon29Tue
30Wed12:416.21:075.37:480.27:450.55:378:22Full Moon30Wed
31Thu1:196.11:495.28:290.38:230.65:368:23Waning Gibbous31Thu
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 3:15 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 48% 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 (48% 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