Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 4m at 3:35 am (0.7 ft)
Next high tide : 9:05 am (5.1 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Aug 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:586.31:305.78:170.18:240.26:018:15Waxing Crescent1Mon
2Tue1:446.32:175.99:010.19:150.36:028:14Waxing Crescent2Tue
3Wed2:336.23:066.09:460.110:090.46:038:13Waxing Crescent3Wed
4Thu3:246.03:586.110:330.211:050.56:048:12Waxing Crescent4Thu
5Fri4:195.84:546.111:240.36:058:11First Quarter5Fri
6Sat5:195.55:546.112:050.712:180.46:058:10First Quarter6Sat
7Sun6:235.36:586.11:070.81:150.56:068:09First Quarter7Sun
8Mon7:285.28:026.12:100.82:150.66:078:07Waxing Gibbous8Mon
9Tue8:325.29:036.13:120.83:140.66:088:06Waxing Gibbous9Tue
10Wed9:325.29:596.24:110.64:120.66:098:05Waxing Gibbous10Wed
11Thu10:275.410:516.25:060.55:070.56:108:04Waxing Gibbous11Thu
12Fri11:175.511:376.25:560.45:590.56:118:03Full Moon12Fri
13Sat12:045.56:430.36:460.56:128:01Full Moon13Sat
14Sun12:216.112:485.67:250.37:310.66:138:00Full Moon14Sun
15Mon1:026.01:295.68:040.38:130.76:147:59Full Moon15Mon
16Tue1:415.92:095.68:410.48:540.86:157:57Waning Gibbous16Tue
17Wed2:205.72:475.59:160.59:340.96:167:56Waning Gibbous17Wed
18Thu3:005.63:245.59:490.610:161.06:177:55Waning Gibbous18Thu
19Fri3:405.44:035.510:220.611:011.16:187:53Waning Gibbous19Fri
20Sat4:245.24:445.510:580.711:501.16:197:52Third Quarter20Sat
21Sun5:135.05:325.511:410.86:207:50Third Quarter21Sun
22Mon6:084.96:265.612:461.212:320.86:207:49Third Quarter22Mon
23Tue7:084.87:265.61:441.21:310.86:217:47Third Quarter23Tue
24Wed8:084.98:265.82:441.12:320.86:227:46Waning Crescent24Wed
25Thu9:055.09:226.03:410.93:330.76:237:44Waning Crescent25Thu
26Fri9:575.210:146.24:350.74:320.56:247:43Waning Crescent26Fri
27Sat10:475.511:046.35:270.55:290.36:257:41New Moon27Sat
28Sun11:335.811:516.46:160.36:230.26:267:40New Moon28Sun
29Mon12:196.07:030.27:150.16:277:38New Moon29Mon
30Tue12:386.41:066.27:490.18:070.16:287:37New Moon30Tue
31Wed1:266.41:536.48:340.19:000.26:297:35Waxing Crescent31Wed
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 6:20 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 84% 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 Waxing Gibbous (84% 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