Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 3h 20m at 5:59 pm (0.5 ft)
Next high tide : 11:36 pm (6.4 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:45 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Dec 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:054.66:225.012:260.312:360.67:044:38First Quarter1Sat
2Sun6:594.77:174.91:140.21:310.57:054:38Waxing Gibbous2Sun
3Mon7:504.98:084.92:010.12:260.47:064:38Waxing Gibbous3Mon
4Tue8:385.08:574.82:470.03:190.27:074:38Waxing Gibbous4Tue
5Wed9:225.29:424.73:320.04:110.17:084:38Waxing Gibbous5Wed
6Thu10:025.310:254.64:160.05:000.07:094:37Full Moon6Thu
7Fri10:395.311:064.54:580.05:470.07:094:37Full Moon7Fri
8Sat11:155.311:454.45:390.06:330.07:104:37Full Moon8Sat
9Sun11:505.46:200.07:180.17:114:38Full Moon9Sun
10Mon12:244.412:275.47:010.18:020.17:124:38Waning Gibbous10Mon
11Tue1:054.31:085.47:440.18:480.17:134:38Waning Gibbous11Tue
12Wed1:494.41:565.48:320.19:360.27:144:38Waning Gibbous12Wed
13Thu2:394.42:505.39:250.110:260.17:144:38Waning Gibbous13Thu
14Fri3:354.53:515.210:250.111:190.17:154:38Third Quarter14Fri
15Sat4:364.64:555.211:290.17:164:39Third Quarter15Sat
16Sun5:394.86:015.112:140.012:340.17:164:39Third Quarter16Sun
17Mon6:415.17:055.01:09-0.21:380.07:174:39Waning Crescent17Mon
18Tue7:415.48:055.02:04-0.32:40-0.27:184:40Waning Crescent18Tue
19Wed8:375.69:025.02:58-0.43:40-0.37:184:40Waning Crescent19Wed
20Thu9:305.89:555.03:51-0.54:37-0.47:194:41Waning Crescent20Thu
21Fri10:205.810:464.94:43-0.55:31-0.57:194:41New Moon21Fri
22Sat11:085.811:364.85:33-0.46:23-0.57:204:42New Moon22Sat
23Sun11:555.76:21-0.47:11-0.47:204:42New Moon23Sun
24Mon12:244.712:415.67:07-0.37:57-0.37:214:43Waxing Crescent24Mon
25Tue1:124.61:275.47:52-0.18:42-0.27:214:43Waxing Crescent25Tue
26Wed2:004.52:135.28:370.09:26-0.17:214:44Waxing Crescent26Wed
27Thu2:484.43:015.09:220.110:090.07:224:45Waxing Crescent27Thu
28Fri3:374.33:504.910:100.210:530.07:224:45First Quarter28Fri
29Sat4:274.34:424.711:000.311:370.07:224:46First Quarter29Sat
30Sun5:194.45:364.611:540.37:224:47First Quarter30Sun
31Mon6:114.46:314.412:230.012:500.37:224:48First 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 8:47 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 spring phase. Tonight's moon is 1% 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 New Moon (1% 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