Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in New Castle, DE.
Next low tide : 3:42 pm (0.7 ft)
Next high tide : in 1h 43m at 9:02 am (5.0 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:09 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jan 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:584.94:244.811:070.111:30-0.27:234:48First Quarter1Sat
2Sun4:585.05:304.712:140.17:234:49First Quarter2Sun
3Mon6:035.16:384.612:29-0.21:230.17:234:50Waxing Gibbous3Mon
4Tue7:095.27:454.61:31-0.22:290.07:234:50Waxing Gibbous4Tue
5Wed8:135.48:484.62:34-0.33:32-0.27:234:51Waxing Gibbous5Wed
6Thu9:135.59:464.73:35-0.44:32-0.47:234:52Waxing Gibbous6Thu
7Fri10:105.610:414.84:33-0.55:28-0.57:234:53Full Moon7Fri
8Sat11:035.711:344.95:29-0.66:20-0.67:234:54Full Moon8Sat
9Sun11:555.66:22-0.67:09-0.77:234:55Full Moon9Sun
10Mon12:254.912:445.57:12-0.67:56-0.77:224:56Waning Gibbous10Mon
11Tue1:144.91:335.48:01-0.58:41-0.67:224:57Waning Gibbous11Tue
12Wed2:034.92:215.28:49-0.49:24-0.57:224:58Waning Gibbous12Wed
13Thu2:524.83:095.09:37-0.210:08-0.47:224:59Waning Gibbous13Thu
14Fri3:414.83:594.810:27-0.110:52-0.37:215:00Third Quarter14Fri
15Sat4:314.84:514.611:180.011:37-0.27:215:01Third Quarter15Sat
16Sun5:234.85:464.412:120.17:215:02Third Quarter16Sun
17Mon6:164.86:424.312:24-0.11:070.17:205:03Third Quarter17Mon
18Tue7:104.87:374.31:13-0.12:020.07:205:05Waning Crescent18Tue
19Wed8:024.98:304.32:04-0.12:56-0.17:195:06Waning Crescent19Wed
20Thu8:525.09:194.32:55-0.23:48-0.27:195:07Waning Crescent20Thu
21Fri9:385.010:044.33:45-0.34:37-0.37:185:08Waning Crescent21Fri
22Sat10:215.110:464.44:34-0.35:23-0.37:185:09New Moon22Sat
23Sun11:005.111:254.45:20-0.46:07-0.47:175:10New Moon23Sun
24Mon11:375.26:04-0.56:47-0.47:165:11New Moon24Mon
25Tue12:014.512:145.26:47-0.57:27-0.47:165:13New Moon25Tue
26Wed12:374.612:525.27:30-0.58:05-0.47:155:14Waxing Crescent26Wed
27Thu1:144.81:325.18:15-0.48:44-0.47:145:15Waxing Crescent27Thu
28Fri1:554.92:185.09:02-0.39:25-0.37:135:16Waxing Crescent28Fri
29Sat2:425.03:094.99:56-0.210:12-0.37:135:17First Quarter29Sat
30Sun3:355.14:084.710:570.011:07-0.27:125:18First Quarter30Sun
31Mon4:355.15:144.512:020.17:115:20First Quarter31Mon
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 12:22 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 13% 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 Waning Crescent (13% 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