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 4h 02m 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 - Jun 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:576.02:315.19:100.39:000.75:368:23Waning Gibbous1Fri
2Sat2:345.93:135.09:490.49:360.85:358:24Waning Gibbous2Sat
3Sun3:125.83:565.010:290.510:160.85:358:25Waning Gibbous3Sun
4Mon3:525.74:404.911:100.511:010.95:358:25Waning Gibbous4Mon
5Tue4:365.65:275.011:530.611:530.95:348:26Third Quarter5Tue
6Wed5:275.56:175.112:390.65:348:27Third Quarter6Wed
7Thu6:235.47:105.212:510.91:280.55:348:27Third Quarter7Thu
8Fri7:235.38:025.51:520.92:190.55:348:28Third Quarter8Fri
9Sat8:225.38:545.72:540.83:110.45:348:28Waning Crescent9Sat
10Sun9:185.39:446.03:550.64:040.45:348:29Waning Crescent10Sun
11Mon10:125.410:336.24:540.54:580.35:338:29Waning Crescent11Mon
12Tue11:055.411:216.45:510.35:510.35:338:30New Moon12Tue
13Wed11:565.46:460.16:440.25:338:30New Moon13Wed
14Thu12:106.512:485.47:390.07:370.25:338:31New Moon14Thu
15Fri1:016.61:415.58:320.08:300.35:338:31Waxing Crescent15Fri
16Sat1:536.52:365.59:240.09:250.35:338:32Waxing Crescent16Sat
17Sun2:496.43:345.510:160.010:210.45:348:32Waxing Crescent17Sun
18Mon3:476.24:325.511:090.111:190.55:348:32Waxing Crescent18Mon
19Tue4:476.05:325.612:020.15:348:33First Quarter19Tue
20Wed5:485.86:325.712:180.612:560.25:348:33First Quarter20Wed
21Thu6:495.77:305.81:180.61:490.25:348:33First Quarter21Thu
22Fri7:495.68:266.02:170.62:410.25:348:33Waxing Gibbous22Fri
23Sat8:465.59:196.13:150.53:320.25:358:33Waxing Gibbous23Sat
24Sun9:395.410:086.24:110.44:210.25:358:33Waxing Gibbous24Sun
25Mon10:295.410:546.25:040.35:090.35:358:34Waxing Gibbous25Mon
26Tue11:165.311:366.25:530.35:540.35:368:34Full Moon26Tue
27Wed12:015.36:400.26:370.45:368:34Full Moon27Wed
28Thu12:176.212:445.27:230.27:180.55:368:34Full Moon28Thu
29Fri12:556.11:255.18:050.37:570.65:378:34Full Moon29Fri
30Sat1:326.02:055.08:440.38:340.75:378:34Waning 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