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 19m 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 - Sep 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:456.22:106.18:560.29:210.46:307:33Waning Gibbous1Fri
2Sat2:336.12:586.29:410.210:140.56:317:32Waning Gibbous2Sat
3Sun3:246.03:506.210:290.311:110.66:327:30Waning Gibbous3Sun
4Mon4:215.84:486.211:220.56:337:28Third Quarter4Mon
5Tue5:235.65:526.112:120.812:200.66:347:27Third Quarter5Tue
6Wed6:295.46:596.11:140.81:210.66:357:25Third Quarter6Wed
7Thu7:365.48:056.12:160.82:220.66:367:24Waning Crescent7Thu
8Fri8:395.59:076.23:160.73:230.66:377:22Waning Crescent8Fri
9Sat9:385.710:036.34:130.54:210.56:387:20Waning Crescent9Sat
10Sun10:325.810:536.35:070.35:160.46:397:19Waning Crescent10Sun
11Mon11:215.911:406.35:570.26:070.36:397:17New Moon11Mon
12Tue12:076.06:430.26:550.46:407:15New Moon12Tue
13Wed12:246.212:506.07:250.27:400.46:417:14New Moon13Wed
14Thu1:066.11:326.08:050.38:230.56:427:12Waxing Crescent14Thu
15Fri1:475.92:125.98:430.49:050.76:437:11Waxing Crescent15Fri
16Sat2:285.72:515.89:190.59:470.86:447:09Waxing Crescent16Sat
17Sun3:095.53:305.79:540.610:290.96:457:07Waxing Crescent17Sun
18Mon3:535.44:125.710:310.711:151.06:467:06Waxing Crescent18Mon
19Tue4:405.24:575.611:120.86:477:04First Quarter19Tue
20Wed5:325.15:485.612:051.011:59 AM0.96:487:02First Quarter20Wed
21Thu6:285.06:455.612:591.012:540.96:497:01First Quarter21Thu
22Fri7:255.07:435.61:541.01:520.86:506:59First Quarter22Fri
23Sat8:225.18:405.82:500.92:520.76:516:57Waxing Gibbous23Sat
24Sun9:145.39:325.93:440.73:500.66:526:56Waxing Gibbous24Sun
25Mon10:035.510:216.14:350.54:450.46:526:54Waxing Gibbous25Mon
26Tue10:495.811:086.25:250.35:390.36:536:53Full Moon26Tue
27Wed11:336.011:546.36:120.26:320.26:546:51Full Moon27Wed
28Thu12:176.26:580.17:230.16:556:49Full Moon28Thu
29Fri12:406.31:026.47:440.18:140.16:566:48Full Moon29Fri
30Sat1:276.21:486.48:300.19:070.26:576:46Waning Gibbous30Sat
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