Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 6h 10m at 5:59 pm (0.5 ft)
Next high tide : 11:36 pm (6.4 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:45 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Jan 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:064.67:304.31:120.01:500.27:234:48Waxing Gibbous1Tue
2Wed7:564.88:224.32:00-0.12:460.17:234:49Waxing Gibbous2Wed
3Thu8:434.99:114.32:48-0.13:410.07:234:50Waxing Gibbous3Thu
4Fri9:285.09:574.33:37-0.24:33-0.27:234:51Waxing Gibbous4Fri
5Sat10:105.210:414.34:25-0.25:23-0.27:234:52Full Moon5Sat
6Sun10:515.311:234.35:12-0.36:10-0.37:234:53Full Moon6Sun
7Mon11:325.45:58-0.46:56-0.37:234:54Full Moon7Mon
8Tue12:044.412:145.46:45-0.47:40-0.37:234:55Full Moon8Tue
9Wed12:474.512:595.47:32-0.58:25-0.37:224:56Waning Gibbous9Wed
10Thu1:324.61:475.48:21-0.49:10-0.37:224:57Waning Gibbous10Thu
11Fri2:214.72:385.39:13-0.49:58-0.37:224:58Waning Gibbous11Fri
12Sat3:134.83:335.110:09-0.310:48-0.37:224:59Third Quarter12Sat
13Sun4:094.94:334.911:10-0.211:40-0.37:215:00Third Quarter13Sun
14Mon5:094.95:354.712:13-0.17:215:01Third Quarter14Mon
15Tue6:115.06:404.612:35-0.31:180.07:215:02Third Quarter15Tue
16Wed7:145.17:434.51:32-0.22:22-0.17:205:03Waning Crescent16Wed
17Thu8:145.28:434.42:30-0.23:23-0.27:205:04Waning Crescent17Thu
18Fri9:115.39:384.53:27-0.34:21-0.27:195:05Waning Crescent18Fri
19Sat10:035.410:314.54:22-0.35:15-0.37:195:06New Moon19Sat
20Sun10:535.311:204.55:14-0.36:05-0.47:185:08New Moon20Sun
21Mon11:395.36:03-0.36:51-0.47:185:09New Moon21Mon
22Tue12:064.512:245.26:48-0.27:34-0.37:175:10New Moon22Tue
23Wed12:514.41:075.17:32-0.28:14-0.27:165:11Waxing Crescent23Wed
24Thu1:354.41:495.08:14-0.18:52-0.27:165:12Waxing Crescent24Thu
25Fri2:174.42:314.88:550.09:30-0.17:155:13Waxing Crescent25Fri
26Sat3:004.43:154.79:380.110:07-0.17:145:14Waxing Crescent26Sat
27Sun3:434.44:024.510:240.210:460.07:145:16First Quarter27Sun
28Mon4:294.44:524.311:160.211:290.07:135:17First Quarter28Mon
29Tue5:184.55:474.212:110.37:125:18First Quarter29Tue
30Wed6:104.56:454.112:160.01:100.37:115:19First Quarter30Wed
31Thu7:044.67:424.11:080.02:100.27:105:20Waxing Gibbous31Thu
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 8:47 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 spring phase. Tonight's moon is 1% 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 New Moon (1% 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