Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in New Castle, DE.
Next low tide (tomorrow) : 7:44 am (0.5 ft)
Next high tide (tomorrow) : in 4h 48m at 12:35 am (6.0 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:59 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Aug 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:215.64:546.011:230.46:018:15Third Quarter1Tue
2Wed5:215.45:546.012:120.912:170.56:028:14Third Quarter2Wed
3Thu6:275.27:006.01:181.01:170.66:038:13Third Quarter3Thu
4Fri7:365.18:076.02:241.02:210.76:048:12Waning Crescent4Fri
5Sat8:435.19:126.13:280.93:250.76:058:10Waning Crescent5Sat
6Sun9:465.210:126.24:300.74:270.66:068:09Waning Crescent6Sun
7Mon10:435.311:066.35:270.55:250.56:078:08New Moon7Mon
8Tue11:365.411:566.36:190.46:190.56:088:07New Moon8Tue
9Wed12:265.57:070.37:100.56:098:06New Moon9Wed
10Thu12:436.21:125.67:520.27:570.56:108:04New Moon10Thu
11Fri1:276.11:575.68:330.38:420.66:108:03Waxing Crescent11Fri
12Sat2:105.92:415.69:130.49:260.76:118:02Waxing Crescent12Sat
13Sun2:535.73:235.69:500.510:110.96:128:01Waxing Crescent13Sun
14Mon3:365.54:075.610:270.610:571.06:137:59Waxing Crescent14Mon
15Tue4:235.34:525.611:050.711:461.16:147:58First Quarter15Tue
16Wed5:135.15:405.611:460.86:157:57First Quarter16Wed
17Thu6:074.96:325.612:381.112:330.96:167:55First Quarter17Thu
18Fri7:044.87:285.61:341.11:250.96:177:54First Quarter18Fri
19Sat8:024.88:245.72:311.12:210.96:187:52Waxing Gibbous19Sat
20Sun8:584.89:175.83:261.03:170.86:197:51Waxing Gibbous20Sun
21Mon9:495.010:065.94:200.84:120.76:207:50Waxing Gibbous21Mon
22Tue10:365.110:526.15:100.75:060.66:217:48Waxing Gibbous22Tue
23Wed11:195.311:346.25:570.55:560.46:227:47Full Moon23Wed
24Thu12:005.56:410.46:450.46:237:45Full Moon24Thu
25Fri12:156.212:405.77:230.37:330.36:247:44Full Moon25Fri
26Sat12:566.21:205.98:040.38:210.46:257:42Waning Gibbous26Sat
27Sun1:396.12:026.18:450.39:110.56:257:41Waning Gibbous27Sun
28Mon2:246.02:486.29:270.310:040.66:267:39Waning Gibbous28Mon
29Tue3:135.83:386.210:120.411:010.86:277:38Waning Gibbous29Tue
30Wed4:085.54:356.111:030.66:287:36Third Quarter30Wed
31Thu5:105.35:386.012:021.012:010.76:297:35Third Quarter31Thu
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 4:09 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 100% 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 (100% 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