Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Port Mahon, DE.
Next low tide : 8:22 pm (0.1 ft)
Next high tide : in 2h 27m at 2:04 pm (5.3 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Jun 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:265.19:416.13:390.33:380.25:378:22New Moon1Tue
2Wed10:075.110:186.24:220.24:180.25:368:22New Moon2Wed
3Thu10:465.010:556.25:040.24:570.25:368:23New Moon3Thu
4Fri11:254.911:326.35:450.25:370.25:368:24New Moon4Fri
5Sat12:044.96:260.26:180.35:358:24Waxing Crescent5Sat
6Sun12:126.312:464.97:100.37:020.35:358:25Waxing Crescent6Sun
7Mon12:556.21:324.97:560.37:510.45:358:25Waxing Crescent7Mon
8Tue1:436.12:244.98:450.38:460.55:358:26Waxing Crescent8Tue
9Wed2:356.03:205.09:360.39:450.55:358:26First Quarter9Wed
10Thu3:335.94:195.210:300.210:480.55:348:27First Quarter10Thu
11Fri4:365.75:225.511:260.111:540.35:348:27First Quarter11Fri
12Sat5:425.66:235.912:230.05:348:28Waxing Gibbous12Sat
13Sun6:465.67:206.312:590.11:20-0.15:348:28Waxing Gibbous13Sun
14Mon7:455.58:146.62:01-0.12:14-0.25:348:29Waxing Gibbous14Mon
15Tue8:415.59:076.83:01-0.33:08-0.35:348:29Full Moon15Tue
16Wed9:365.59:586.93:57-0.54:00-0.45:348:30Full Moon16Wed
17Thu10:285.510:486.84:50-0.54:51-0.35:348:30Full Moon17Thu
18Fri11:205.411:376.75:41-0.45:40-0.25:358:30Full Moon18Fri
19Sat12:105.36:29-0.36:280.05:358:30Waning Gibbous19Sat
20Sun12:256.412:595.17:17-0.17:170.35:358:31Waning Gibbous20Sun
21Mon1:136.11:505.08:040.18:060.55:358:31Waning Gibbous21Mon
22Tue2:025.82:404.98:500.38:560.75:358:31Third Quarter22Tue
23Wed2:525.53:324.99:360.59:470.95:368:31Third Quarter23Wed
24Thu3:435.24:244.910:210.610:411.05:368:31Third Quarter24Thu
25Fri4:375.05:175.011:080.711:371.05:368:31Third Quarter25Fri
26Sat5:344.96:105.211:560.75:378:32Waning Crescent26Sat
27Sun6:304.86:595.412:331.012:440.75:378:32Waning Crescent27Sun
28Mon7:224.87:455.71:290.81:310.65:378:32Waning Crescent28Mon
29Tue8:104.88:285.92:210.62:180.55:388:32Waning Crescent29Tue
30Wed8:564.89:106.13:100.53:040.35:388:31New Moon30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8554399)

Common Questions About Port Mahon, DE Tides

Show All
What time does the tide turn (slack tide) in Port Mahon, DE today?

Slack tide in Port Mahon, DE is approximately 5:13 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 Port Mahon, DE?

Port Mahon, DE is currently in a transitional phase. Tonight's moon is 27% 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 Port Mahon, 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 Port Mahon, DE?

Tide predictions for Port Mahon, 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 Port Mahon, DE?

Tide data for Port Mahon, DE is sourced from NOAA Station #8554399. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8554399.

What is the moon phase in Port Mahon, DE tonight?

Tonight the moon over Port Mahon, DE is Waxing Crescent (27% illuminated). This places Port Mahon, 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