Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Port Mahon, DE.
Next low tide : in 1h 17m at 8:17 am (-0.1 ft)
Next high tide : 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 - Feb 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:135.87:454.91:100.02:02-0.27:075:22Waning Crescent1Mon
2Tue8:035.98:335.02:03-0.22:52-0.37:065:23New Moon2Tue
3Wed8:506.09:185.12:52-0.23:37-0.47:055:24New Moon3Wed
4Thu9:336.010:005.13:36-0.34:17-0.37:055:25New Moon4Thu
5Fri10:145.910:395.14:17-0.24:54-0.37:035:27New Moon5Fri
6Sat10:535.811:175.14:56-0.15:30-0.17:025:28Waxing Crescent6Sat
7Sun11:315.611:545.05:350.06:050.07:015:29Waxing Crescent7Sun
8Mon12:105.36:150.16:400.27:005:30Waxing Crescent8Mon
9Tue12:325.012:515.06:570.37:170.46:595:31Waxing Crescent9Tue
10Wed1:125.01:344.77:420.57:570.56:585:32First Quarter10Wed
11Thu1:564.92:224.48:320.78:420.66:575:34First Quarter11Thu
12Fri2:454.93:174.29:290.89:340.76:565:35First Quarter12Fri
13Sat3:415.04:204.110:310.910:330.66:555:36First Quarter13Sat
14Sun4:435.15:244.211:340.811:340.56:535:37Waxing Gibbous14Sun
15Mon5:435.36:224.412:340.56:525:38Waxing Gibbous15Mon
16Tue6:395.77:144.712:320.21:290.26:515:39Waxing Gibbous16Tue
17Wed7:306.08:035.11:28-0.12:20-0.26:505:40Waxing Gibbous17Wed
18Thu8:196.38:515.42:21-0.43:09-0.56:485:42Full Moon18Thu
19Fri9:066.59:375.73:12-0.73:54-0.86:475:43Full Moon19Fri
20Sat9:546.610:236.04:02-0.94:39-0.96:465:44Full Moon20Sat
21Sun10:416.511:106.14:51-1.05:24-0.96:445:45Waning Gibbous21Sun
22Mon11:296.311:586.15:42-0.96:10-0.76:435:46Waning Gibbous22Mon
23Tue12:205.96:35-0.76:59-0.56:425:47Waning Gibbous23Tue
24Wed12:496.11:145.57:31-0.47:51-0.26:405:48Third Quarter24Wed
25Thu1:445.92:135.08:31-0.18:460.16:395:49Third Quarter25Thu
26Fri2:435.73:184.79:340.29:460.36:375:50Third Quarter26Fri
27Sat3:485.54:284.510:420.310:500.46:365:51Third Quarter27Sat
28Sun4:575.45:384.511:490.311:540.46:345:53Waning Crescent28Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8554399)

Common Questions About Port Mahon, DE Tides

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

Slack tide in Port Mahon, DE is approximately 11:10 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 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