Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in New Castle, DE.
Next low tide (tomorrow) : 1:34 am (1.2 ft)
Next high tide : in 5h 00m at 6:02 pm (5.9 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:06 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jan 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:065.311:304.65:25-0.46:10-0.47:234:48Full Moon1Sun
2Mon11:445.36:06-0.46:51-0.47:234:49Full Moon2Mon
3Tue12:114.512:215.26:45-0.37:31-0.37:234:50Full Moon3Tue
4Wed12:504.412:575.17:23-0.28:08-0.27:234:51Waning Gibbous4Wed
5Thu1:284.41:315.07:59-0.28:45-0.27:234:52Waning Gibbous5Thu
6Fri2:044.32:065.08:36-0.19:21-0.17:234:53Waning Gibbous6Fri
7Sat2:404.42:454.99:15-0.19:58-0.17:234:54Waning Gibbous7Sat
8Sun3:204.43:294.810:010.010:40-0.17:234:55Third Quarter8Sun
9Mon4:054.54:214.710:560.011:27-0.17:234:56Third Quarter9Mon
10Tue4:574.65:214.611:580.17:224:57Third Quarter10Tue
11Wed5:564.86:264.512:21-0.21:050.17:224:58Third Quarter11Wed
12Thu6:584.97:304.61:19-0.22:110.07:224:59Waning Crescent12Thu
13Fri7:585.28:314.62:20-0.33:14-0.27:225:00Waning Crescent13Fri
14Sat8:565.49:294.83:20-0.44:14-0.47:215:01Waning Crescent14Sat
15Sun9:525.610:244.94:19-0.65:12-0.67:215:02New Moon15Sun
16Mon10:465.811:175.05:16-0.76:06-0.77:205:03New Moon16Mon
17Tue11:395.86:11-0.86:58-0.97:205:04New Moon17Tue
18Wed12:105.112:325.87:05-0.97:48-0.97:205:05Waxing Crescent18Wed
19Thu1:035.11:255.77:58-0.98:38-0.87:195:06Waxing Crescent19Thu
20Fri1:565.12:195.68:51-0.89:28-0.87:185:07Waxing Crescent20Fri
21Sat2:515.13:145.49:45-0.610:18-0.77:185:09Waxing Crescent21Sat
22Sun3:465.04:105.110:40-0.411:08-0.57:175:10First Quarter22Sun
23Mon4:425.05:074.911:37-0.37:175:11First Quarter23Mon
24Tue5:405.06:054.812:00-0.412:34-0.27:165:12First Quarter24Tue
25Wed6:375.07:024.712:51-0.41:31-0.27:155:13Waxing Gibbous25Wed
26Thu7:325.07:574.61:43-0.32:27-0.27:155:14Waxing Gibbous26Thu
27Fri8:255.18:504.62:35-0.33:21-0.37:145:16Waxing Gibbous27Fri
28Sat9:145.29:394.63:25-0.44:11-0.47:135:17Waxing Gibbous28Sat
29Sun10:005.210:254.64:13-0.44:59-0.47:125:18Waxing Gibbous29Sun
30Mon10:435.211:074.64:58-0.45:43-0.47:115:19Full Moon30Mon
31Tue11:225.111:474.65:42-0.46:24-0.47:105:20Full Moon31Tue
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 9:48 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 neap phase. Tonight's moon is 44% 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 minimum.

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 (44% illuminated). This places New Castle, DE in a neap tide cycle, so tidal ranges are near their weekly minimum 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