Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 5h 34m at 6:51 am (0.4 ft)
Next high tide : 12:13 pm (4.9 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:37 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Dec 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:515.611:224.65:180.16:150.17:044:38New Moon1Thu
2Fri11:345.76:040.17:050.17:054:38New Moon2Fri
3Sat12:074.612:195.76:520.17:550.17:064:38Waxing Crescent3Sat
4Sun12:564.51:095.67:430.18:460.17:074:38Waxing Crescent4Sun
5Mon1:494.52:055.58:380.19:390.27:084:38Waxing Crescent5Mon
6Tue2:464.53:065.49:360.210:340.17:084:37First Quarter6Tue
7Wed3:484.64:105.310:380.211:290.17:094:37First Quarter7Wed
8Thu4:524.75:155.211:410.27:104:37First Quarter8Thu
9Fri5:554.96:195.112:230.012:450.17:114:37First Quarter9Fri
10Sat6:565.17:195.11:17-0.11:460.07:124:38Waxing Gibbous10Sat
11Sun7:535.48:165.02:10-0.22:46-0.17:134:38Waxing Gibbous11Sun
12Mon8:465.69:085.03:02-0.33:43-0.27:134:38Waxing Gibbous12Mon
13Tue9:355.79:584.93:51-0.34:37-0.37:144:38Waxing Gibbous13Tue
14Wed10:215.710:454.84:39-0.35:28-0.37:154:38Full Moon14Wed
15Thu11:055.611:304.75:24-0.26:15-0.37:164:39Full Moon15Thu
16Fri11:465.56:08-0.17:00-0.27:164:39Full Moon16Fri
17Sat12:144.612:275.46:490.07:42-0.17:174:39Waning Gibbous17Sat
18Sun12:584.51:075.37:290.08:230.07:174:40Waning Gibbous18Sun
19Mon1:414.41:485.18:070.19:020.17:184:40Waning Gibbous19Mon
20Tue2:244.32:295.08:470.29:420.17:194:40Waning Gibbous20Tue
21Wed3:084.33:134.99:290.210:220.17:194:41Waning Gibbous21Wed
22Thu3:534.33:594.810:160.311:030.17:204:41Third Quarter22Thu
23Fri4:404.34:504.711:080.311:470.17:204:42Third Quarter23Fri
24Sat5:304.45:454.512:060.37:204:43Third Quarter24Sat
25Sun6:214.66:414.412:330.11:060.37:214:43Third Quarter25Sun
26Mon7:124.77:384.31:220.02:080.37:214:44Waning Crescent26Mon
27Tue8:034.98:324.32:130.03:080.27:214:44Waning Crescent27Tue
28Wed8:535.19:244.33:060.04:070.07:224:45Waning Crescent28Wed
29Thu9:415.310:144.34:00-0.15:03-0.17:224:46New Moon29Thu
30Fri10:305.411:044.44:54-0.25:57-0.27:224:47New Moon30Fri
31Sat11:205.511:554.55:48-0.36:48-0.37:224:47New Moon31Sat
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 9:32 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