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 2h 27m 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 - Mar 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:205.52:455.19:21-0.29:33-0.16:345:54Waning Gibbous1Thu
2Fri3:075.33:354.810:090.010:170.16:335:55Third Quarter2Fri
3Sat3:565.24:284.611:000.111:040.26:315:56Third Quarter3Sat
4Sun4:495.05:244.511:530.311:550.36:305:57Third Quarter4Sun
5Mon5:454.96:224.512:470.36:285:58Third Quarter5Mon
6Tue6:434.97:194.512:490.31:420.36:275:59Waning Crescent6Tue
7Wed7:404.98:134.61:450.32:350.26:256:00Waning Crescent7Wed
8Thu8:335.09:024.72:400.23:250.16:246:01Waning Crescent8Thu
9Fri9:225.19:484.93:330.04:130.06:226:02Waning Crescent9Fri
10Sat10:065.210:285.04:23-0.14:57-0.16:216:03New Moon10Sat
11Sun10:465.211:065.15:10-0.25:39-0.16:196:05New Moon11Sun
12Mon11:245.211:405.25:56-0.26:18-0.16:176:06New Moon12Mon
13Tue12:005.26:40-0.26:56-0.16:166:07New Moon13Tue
14Wed12:135.412:375.17:23-0.27:320.06:146:08Waxing Crescent14Wed
15Thu12:485.51:175.18:07-0.18:100.06:136:09Waxing Crescent15Thu
16Fri1:265.62:015.08:540.08:520.16:116:10Waxing Crescent16Fri
17Sat2:115.62:534.99:460.29:420.26:106:11Waxing Crescent17Sat
18Sun3:045.63:524.810:440.310:420.36:086:12First Quarter18Sun
19Mon4:065.44:584.811:470.411:490.46:066:13First Quarter19Mon
20Tue5:175.36:084.812:500.46:056:14First Quarter20Tue
21Wed6:305.37:155.012:570.31:520.36:036:15Waxing Gibbous21Wed
22Thu7:395.48:175.32:030.22:510.16:016:16Waxing Gibbous22Thu
23Fri8:425.69:145.53:050.03:46-0.16:006:17Waxing Gibbous23Fri
24Sat9:375.710:055.84:03-0.24:38-0.35:586:18Waxing Gibbous24Sat
25Sun10:285.710:536.04:58-0.45:26-0.35:576:19Full Moon25Sun
26Mon11:155.711:396.05:50-0.46:12-0.35:556:20Full Moon26Mon
27Tue12:015.66:38-0.46:55-0.25:536:21Full Moon27Tue
28Wed12:226.012:465.57:24-0.37:36-0.15:526:22Waning Gibbous28Wed
29Thu1:055.91:305.38:09-0.18:150.15:506:23Waning Gibbous29Thu
30Fri1:475.82:165.18:540.18:550.35:496:24Waning Gibbous30Fri
31Sat2:305.63:034.99:390.29:360.55:476:25Waning Gibbous31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8551201)

Common Questions About New Castle, DE Tides

Show All
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