Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in New Castle, DE.
Next low tide (tomorrow) : 3:50 am (1.0 ft)
Next high tide : in 3h 15m at 8:21 pm (6.0 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:08 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Apr 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:155.43:544.810:250.410:210.65:456:26Third Quarter1Sun
2Mon4:045.34:474.711:150.511:120.75:446:27Third Quarter2Mon
3Tue4:595.15:434.712:060.65:426:28Third Quarter3Tue
4Wed5:575.16:404.712:070.712:590.55:416:29Third Quarter4Wed
5Thu6:565.17:344.91:050.71:520.55:396:30Waning Crescent5Thu
6Fri7:515.18:245.02:030.52:420.45:386:31Waning Crescent6Fri
7Sat8:435.29:105.22:590.43:310.35:366:32Waning Crescent7Sat
8Sun9:295.29:525.43:520.24:170.25:346:33Waning Crescent8Sun
9Mon10:135.310:315.64:430.15:010.25:336:34New Moon9Mon
10Tue10:545.311:095.85:320.05:440.25:316:35New Moon10Tue
11Wed11:355.311:465.96:200.06:250.25:306:36New Moon11Wed
12Thu12:175.37:070.07:070.25:286:37New Moon12Thu
13Fri12:266.01:025.27:550.17:510.35:276:38Waxing Crescent13Fri
14Sat1:106.11:515.28:450.28:400.35:256:39Waxing Crescent14Sat
15Sun1:596.02:465.19:380.39:350.55:246:40Waxing Crescent15Sun
16Mon2:555.93:465.110:340.410:350.55:226:41First Quarter16Mon
17Tue3:595.74:515.111:320.411:400.65:216:42First Quarter17Tue
18Wed5:085.65:575.212:320.45:196:43First Quarter18Wed
19Thu6:175.57:015.412:440.51:300.35:186:44Waxing Gibbous19Thu
20Fri7:235.68:005.71:480.42:260.25:176:45Waxing Gibbous20Fri
21Sat8:235.68:556.02:480.23:190.15:156:46Waxing Gibbous21Sat
22Sun9:175.79:456.23:460.14:100.05:146:47Waxing Gibbous22Sun
23Mon10:065.710:316.34:400.04:570.05:126:48Full Moon23Mon
24Tue10:535.611:146.35:30-0.15:420.05:116:49Full Moon24Tue
25Wed11:385.511:566.26:18-0.16:240.25:106:50Full Moon25Wed
26Thu12:215.47:030.07:040.35:086:51Full Moon26Thu
27Fri12:366.11:055.27:460.27:430.55:076:52Waning Gibbous27Fri
28Sat1:165.91:495.18:280.38:210.65:066:53Waning Gibbous28Sat
29Sun1:555.83:345.010:090.410:000.76:047:54Waning Gibbous29Sun
30Mon3:375.64:204.910:520.510:420.86:037:55Waning Gibbous30Mon
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 12:05 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 22% 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 Waning Crescent (22% 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