Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Saturday, August 15, 2026
The tide is currently rising in New Castle, DE.
Next low tide : 9:14 pm (0.5 ft)
Next high tide : in 2h 56m at 2:26 pm (5.8 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jan 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:084.52:215.28:48-0.19:36-0.28:235:48Waning Gibbous1Mon
2Tue2:544.43:065.19:310.010:18-0.18:235:49Waning Gibbous2Tue
3Wed3:414.43:514.910:140.111:00-0.18:235:50Waning Gibbous3Wed
4Thu4:284.34:394.811:000.111:430.08:235:51Third Quarter4Thu
5Fri5:174.35:304.611:490.28:235:52Third Quarter5Fri
6Sat6:084.46:234.512:270.012:430.28:235:53Third Quarter6Sat
7Sun7:004.47:194.41:13-0.11:390.28:235:54Third Quarter7Sun
8Mon7:524.58:144.32:00-0.12:360.18:235:54Waning Crescent8Mon
9Tue8:434.79:084.32:50-0.13:340.08:235:55Waning Crescent9Tue
10Wed9:314.99:584.33:40-0.24:29-0.18:225:56Waning Crescent10Wed
11Thu10:185.010:464.44:30-0.35:23-0.28:225:57Waning Crescent11Thu
12Fri11:025.211:314.45:20-0.36:14-0.38:225:59New Moon12Fri
13Sat11:455.36:09-0.47:02-0.48:226:00New Moon13Sat
14Sun12:154.512:285.46:58-0.57:50-0.58:216:01New Moon14Sun
15Mon12:584.51:135.57:46-0.68:36-0.58:216:02New Moon15Mon
16Tue1:434.61:595.58:35-0.69:22-0.58:216:03Waxing Crescent16Tue
17Wed2:304.72:495.59:25-0.610:09-0.58:206:04Waxing Crescent17Wed
18Thu3:214.83:425.410:18-0.510:58-0.58:206:05Waxing Crescent18Thu
19Fri4:154.94:395.211:15-0.411:50-0.48:196:06First Quarter19Fri
20Sat5:124.95:395.012:16-0.38:196:07First Quarter20Sat
21Sun6:135.06:424.812:43-0.41:18-0.28:186:08First Quarter21Sun
22Mon7:155.17:454.71:39-0.42:21-0.18:176:10First Quarter22Mon
23Tue8:175.18:474.62:36-0.33:23-0.28:176:11Waxing Gibbous23Tue
24Wed9:165.29:454.63:32-0.34:23-0.38:166:12Waxing Gibbous24Wed
25Thu10:125.310:394.64:28-0.45:19-0.48:156:13Waxing Gibbous25Thu
26Fri11:035.411:294.75:21-0.46:12-0.48:156:14Full Moon26Fri
27Sat11:505.36:12-0.47:00-0.58:146:15Full Moon27Sat
28Sun12:174.612:355.36:59-0.47:45-0.48:136:17Full Moon28Sun
29Mon1:024.61:175.27:43-0.38:26-0.48:126:18Full Moon29Mon
30Tue1:454.61:585.18:25-0.39:05-0.38:116:19Waning Gibbous30Tue
31Wed2:274.52:395.09:05-0.29:43-0.28:116:20Waning Gibbous31Wed
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 5:50 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 11% 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 Waxing Crescent (11% 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