Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in New Castle, DE.
Next low tide (tomorrow) : 12:46 am (0.8 ft)
Next high tide : in 4h 13m at 6:05 pm (5.5 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:34 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jan 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:305.811:035.04:59-0.65:53-0.67:234:48Full Moon1Mon
2Tue11:235.911:575.05:55-0.76:46-0.77:234:49Full Moon2Tue
3Wed12:165.96:48-0.77:38-0.87:234:50Waning Gibbous3Wed
4Thu12:515.01:105.87:42-0.78:29-0.77:234:51Waning Gibbous4Thu
5Fri1:454.92:055.68:35-0.69:20-0.77:234:52Waning Gibbous5Fri
6Sat2:414.93:015.49:29-0.510:10-0.67:234:53Waning Gibbous6Sat
7Sun3:364.93:575.210:23-0.411:01-0.57:234:54Third Quarter7Sun
8Mon4:334.94:535.011:19-0.211:52-0.47:224:55Third Quarter8Mon
9Tue5:294.95:504.812:16-0.17:224:56Third Quarter9Tue
10Wed6:254.96:474.712:42-0.41:12-0.17:224:57Third Quarter10Wed
11Thu7:205.07:414.71:32-0.42:08-0.27:224:58Waning Crescent11Thu
12Fri8:125.18:344.62:22-0.43:02-0.27:224:59Waning Crescent12Fri
13Sat9:015.29:234.63:10-0.43:53-0.37:215:00Waning Crescent13Sat
14Sun9:465.210:094.63:57-0.44:42-0.47:215:01Waning Crescent14Sun
15Mon10:295.210:524.54:43-0.45:28-0.47:215:02New Moon15Mon
16Tue11:095.211:334.55:26-0.46:11-0.47:205:03New Moon16Tue
17Wed11:465.16:07-0.46:51-0.47:205:04New Moon17Wed
18Thu12:114.412:215.16:46-0.47:30-0.37:195:05New Moon18Thu
19Fri12:474.412:545.17:24-0.38:06-0.37:195:06Waxing Crescent19Fri
20Sat1:204.41:275.08:01-0.38:42-0.27:185:07Waxing Crescent20Sat
21Sun1:534.42:045.08:39-0.29:17-0.27:185:09Waxing Crescent21Sun
22Mon2:294.52:465.09:21-0.19:56-0.27:175:10Waxing Crescent22Mon
23Tue3:124.73:354.910:12-0.110:40-0.27:165:11First Quarter23Tue
24Wed4:034.84:324.711:120.011:33-0.27:165:12First Quarter24Wed
25Thu5:014.95:384.612:210.17:155:13First Quarter25Thu
26Fri6:075.06:464.612:33-0.21:300.17:145:14Waxing Gibbous26Fri
27Sat7:145.17:534.61:37-0.22:36-0.17:135:16Waxing Gibbous27Sat
28Sun8:185.38:554.72:41-0.33:40-0.27:135:17Waxing Gibbous28Sun
29Mon9:195.59:534.83:44-0.54:39-0.57:125:18Waxing Gibbous29Mon
30Tue10:165.710:485.04:43-0.65:35-0.77:115:19Full Moon30Tue
31Wed11:105.811:415.15:39-0.86:27-0.87:105:20Full Moon31Wed
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 9:25 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 48% 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 First Quarter (48% 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