Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 5h 10m at 11:35 pm (0.9 ft)
Next high tide (tomorrow) : 4:56 am (5.5 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Dec 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:326.010:005.33:59-0.34:46-0.37:034:38New Moon1Thu
2Fri10:246.210:545.34:54-0.45:43-0.47:044:38New Moon2Fri
3Sat11:166.211:475.35:48-0.46:37-0.57:054:38New Moon3Sat
4Sun12:096.16:41-0.47:30-0.57:064:38Waxing Crescent4Sun
5Mon12:415.21:026.07:34-0.48:22-0.47:074:38Waxing Crescent5Mon
6Tue1:365.11:565.88:26-0.39:13-0.37:084:37Waxing Crescent6Tue
7Wed2:315.02:525.69:20-0.110:04-0.27:094:37Waxing Crescent7Wed
8Thu3:284.93:485.410:150.010:55-0.17:104:37First Quarter8Thu
9Fri4:254.94:465.211:100.111:46-0.17:114:37First Quarter9Fri
10Sat5:234.95:435.012:070.27:124:38First Quarter10Sat
11Sun6:195.06:394.912:36-0.11:030.27:124:38First Quarter11Sun
12Mon7:135.17:344.91:26-0.11:580.17:134:38Waxing Gibbous12Mon
13Tue8:055.28:264.82:14-0.22:520.07:144:38Waxing Gibbous13Tue
14Wed8:535.39:144.83:02-0.23:43-0.17:154:38Waxing Gibbous14Wed
15Thu9:385.410:004.73:48-0.24:32-0.27:154:38Waxing Gibbous15Thu
16Fri10:205.410:444.74:32-0.35:18-0.27:164:39Full Moon16Fri
17Sat10:595.311:254.65:15-0.26:02-0.37:174:39Full Moon17Sat
18Sun11:365.35:56-0.26:44-0.27:174:39Full Moon18Sun
19Mon12:034.512:105.26:36-0.27:24-0.27:184:40Full Moon19Mon
20Tue12:404.512:435.27:14-0.28:03-0.17:184:40Waning Gibbous20Tue
21Wed1:154.51:175.27:53-0.28:41-0.17:194:41Waning Gibbous21Wed
22Thu1:514.51:555.28:33-0.19:19-0.17:194:41Waning Gibbous22Thu
23Fri2:304.62:395.29:17-0.110:01-0.17:204:42Waning Gibbous23Fri
24Sat3:164.83:305.110:090.010:47-0.17:204:42Third Quarter24Sat
25Sun4:084.94:285.011:090.011:39-0.27:214:43Third Quarter25Sun
26Mon5:075.05:324.912:150.17:214:44Third Quarter26Mon
27Tue6:105.26:394.812:36-0.21:220.07:214:44Waning Crescent27Tue
28Wed7:135.37:454.81:36-0.32:27-0.17:224:45Waning Crescent28Wed
29Thu8:155.58:464.82:37-0.43:30-0.37:224:46Waning Crescent29Thu
30Fri9:135.79:444.93:37-0.54:30-0.47:224:46Waning Crescent30Fri
31Sat10:095.810:425.04:35-0.65:26-0.67:224:47New Moon31Sat
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 2:15 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 transitional phase. Tonight's moon is 62% 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 shifting between spring and neap.

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 Third Quarter (62% illuminated). This places New Castle, DE in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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