Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in New Castle, DE.
Next low tide (tomorrow) : 7:44 am (0.5 ft)
Next high tide (tomorrow) : in 3h 54m at 12:35 am (6.0 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:59 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jul 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:586.03:355.410:200.410:250.75:388:33Waning Gibbous1Sat
2Sun3:455.94:235.611:020.411:210.85:388:33Third Quarter2Sun
3Mon4:385.75:175.711:480.45:398:33Third Quarter3Mon
4Tue5:375.56:165.912:230.812:400.45:398:33Third Quarter4Tue
5Wed6:415.37:186.01:290.91:360.55:408:33Third Quarter5Wed
6Thu7:495.28:226.12:360.92:370.55:418:32Waning Crescent6Thu
7Fri8:555.19:246.23:420.83:390.55:418:32Waning Crescent7Fri
8Sat9:575.110:226.34:450.64:400.55:428:32Waning Crescent8Sat
9Sun10:565.211:186.45:440.45:390.45:428:31New Moon9Sun
10Mon11:515.36:390.36:350.45:438:31New Moon10Mon
11Tue12:106.412:445.37:300.27:270.45:448:31New Moon11Tue
12Wed1:006.31:355.48:180.28:180.55:448:30Waxing Crescent12Wed
13Thu1:496.22:245.49:040.29:060.65:458:30Waxing Crescent13Thu
14Fri2:376.03:135.49:470.29:540.75:468:29Waxing Crescent14Fri
15Sat3:245.84:015.510:290.310:420.85:478:29Waxing Crescent15Sat
16Sun4:125.64:495.511:110.411:310.95:478:28First Quarter16Sun
17Mon5:015.45:395.511:530.55:488:27First Quarter17Mon
18Tue5:535.26:295.512:231.012:370.65:498:27First Quarter18Tue
19Wed6:485.07:215.61:171.01:230.75:508:26First Quarter19Wed
20Thu7:454.98:145.72:131.02:110.75:518:25Waxing Gibbous20Thu
21Fri8:414.89:055.73:080.93:020.75:518:25Waxing Gibbous21Fri
22Sat9:344.89:545.84:030.83:540.75:528:24Waxing Gibbous22Sat
23Sun10:234.910:405.94:550.74:450.65:538:23Waxing Gibbous23Sun
24Mon11:094.911:226.05:450.55:340.65:548:22Full Moon24Mon
25Tue11:515.06:310.56:220.55:558:21Full Moon25Tue
26Wed12:026.112:315.17:140.47:080.55:568:21Full Moon26Wed
27Thu12:406.11:095.27:550.37:520.45:578:20Full Moon27Thu
28Fri1:186.11:475.48:350.38:370.55:588:19Waning Gibbous28Fri
29Sat1:586.12:275.69:140.39:240.55:588:18Waning Gibbous29Sat
30Sun2:416.03:115.89:530.310:150.65:598:17Waning Gibbous30Sun
31Mon3:285.94:005.910:360.311:110.86:008:16Third Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8551201)

Common Questions About New Castle, DE Tides

Show All
What time does the tide turn (slack tide) in New Castle, DE today?

Slack tide in New Castle, DE is approximately 4:09 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 spring phase. Tonight's moon is 100% 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 maximum.

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 Full Moon (100% illuminated). This places New Castle, DE in a spring tide cycle, so tidal ranges are near their weekly maximum 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