Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in New Castle, DE.
Next low tide (tomorrow) : 2:57 am (1.0 ft)
Next high tide : in 2h 16m at 7:34 pm (5.9 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Sep 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:455.91:115.67:450.57:540.76:307:33New Moon1Fri
2Sat1:235.81:495.68:200.58:340.86:317:32Waxing Crescent2Sat
3Sun2:005.62:255.68:530.69:130.96:327:30Waxing Crescent3Sun
4Mon2:375.53:005.69:240.79:541.06:337:29Waxing Crescent4Mon
5Tue3:165.33:355.69:540.810:361.16:347:27Waxing Crescent5Tue
6Wed3:575.14:135.610:270.911:251.26:357:25First Quarter6Wed
7Thu4:444.94:585.611:080.96:367:24First Quarter7Thu
8Fri5:384.75:525.612:201.311:59 AM1.06:377:22First Quarter8Fri
9Sat6:394.76:555.61:191.31:001.06:377:21First Quarter9Sat
10Sun7:424.78:005.72:191.22:051.06:387:19Waxing Gibbous10Sun
11Mon8:424.99:015.93:181.13:100.86:397:17Waxing Gibbous11Mon
12Tue9:365.29:566.14:130.84:110.66:407:16Waxing Gibbous12Tue
13Wed10:275.510:476.35:050.65:090.46:417:14Waxing Gibbous13Wed
14Thu11:145.811:356.45:540.46:040.26:427:12Full Moon14Thu
15Fri12:006.16:400.26:570.16:437:11Full Moon15Fri
16Sat12:226.412:466.37:250.17:500.16:447:09Full Moon16Sat
17Sun1:096.31:326.58:100.18:420.26:457:07Waning Gibbous17Sun
18Mon1:586.12:216.58:560.29:360.46:467:06Waning Gibbous18Mon
19Tue2:505.83:136.49:430.310:320.66:477:04Waning Gibbous19Tue
20Wed3:455.54:086.210:340.511:310.86:487:03Third Quarter20Wed
21Thu4:455.35:096.011:300.76:497:01Third Quarter21Thu
22Fri5:495.16:155.912:320.912:300.96:506:59Third Quarter22Fri
23Sat6:545.07:235.81:331.01:321.06:506:58Third Quarter23Sat
24Sun7:595.18:265.82:330.92:330.96:516:56Waning Crescent24Sun
25Mon8:585.29:235.93:290.83:310.96:526:54Waning Crescent25Mon
26Tue9:525.410:135.94:220.64:260.76:536:53Waning Crescent26Tue
27Wed10:405.610:585.95:090.55:170.76:546:51Waning Crescent27Wed
28Thu11:245.711:405.95:530.46:040.66:556:49New Moon28Thu
29Fri12:055.86:330.46:490.66:566:48New Moon29Fri
30Sat12:195.712:425.87:090.57:300.76:576:46New Moon30Sat
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 11:15 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 transitional phase. Tonight's moon is 30% 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 (30% 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