Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Monday, July 27, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 3h 19m at 5:37 am (0.6 ft)
Next high tide : 11:03 am (5.0 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:57 am
Moon phase : Full Moon (96% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jul 1973

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:246.61:015.57:490.07:480.25:388:33New Moon1Sun
2Mon1:186.51:565.58:400.08:420.25:388:33Waxing Crescent2Mon
3Tue2:126.42:505.69:290.09:350.35:398:33Waxing Crescent3Tue
4Wed3:056.23:445.710:170.010:290.45:398:33Waxing Crescent4Wed
5Thu3:596.04:385.711:050.111:230.65:408:33First Quarter5Thu
6Fri4:535.85:325.711:530.25:408:33First Quarter6Fri
7Sat5:475.56:265.812:190.712:410.35:418:32First Quarter7Sat
8Sun6:435.37:205.81:150.81:290.45:428:32First Quarter8Sun
9Mon7:405.28:145.92:110.82:190.55:428:32Waxing Gibbous9Mon
10Tue8:355.19:056.03:060.73:080.55:438:31Waxing Gibbous10Tue
11Wed9:295.19:546.04:000.73:570.55:448:31Waxing Gibbous11Wed
12Thu10:195.010:406.04:520.64:460.65:448:30Waxing Gibbous12Thu
13Fri11:065.011:226.05:400.55:320.65:458:30Full Moon13Fri
14Sat11:505.06:260.46:170.65:468:29Full Moon14Sat
15Sun12:026.012:315.07:080.46:590.65:478:29Full Moon15Sun
16Mon12:395.91:095.07:480.47:400.65:478:28Full Moon16Mon
17Tue1:145.91:445.18:250.48:190.65:488:28Waning Gibbous17Tue
18Wed1:465.92:175.29:000.48:580.75:498:27Waning Gibbous18Wed
19Thu2:205.82:505.39:340.49:380.75:508:26Waning Gibbous19Thu
20Fri2:575.83:285.510:070.410:230.85:508:26Waning Gibbous20Fri
21Sat3:405.74:115.710:440.411:160.95:518:25Third Quarter21Sat
22Sun4:295.55:025.811:260.55:528:24Third Quarter22Sun
23Mon5:275.36:005.912:181.012:180.55:538:23Third Quarter23Mon
24Tue6:335.17:055.91:261.11:200.65:548:23Third Quarter24Tue
25Wed7:445.08:136.12:351.02:270.65:558:22Waning Crescent25Wed
26Thu8:525.19:196.23:410.93:350.65:568:21Waning Crescent26Thu
27Fri9:565.210:206.44:440.74:400.55:568:20Waning Crescent27Fri
28Sat10:555.411:176.55:420.45:410.35:578:19New Moon28Sat
29Sun11:515.56:370.26:380.25:588:18New Moon29Sun
30Mon12:116.512:445.77:280.17:320.25:598:17New Moon30Mon
31Tue1:026.51:355.88:160.08:240.26:008:16Waxing Crescent31Tue
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 8:20 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 spring phase. Tonight's moon is 96% 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 Full Moon (96% 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