Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Port Mahon, DE.
Next low tide : in 5h 13m at 1:30 pm (0.2 ft)
Next high tide : 7:38 pm (6.4 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Jul 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:045.211:166.35:22-0.15:190.25:398:31Full Moon1Fri
2Sat11:455.111:566.16:010.05:580.35:408:31Waning Gibbous2Sat
3Sun12:265.16:390.16:380.45:408:31Waning Gibbous3Sun
4Mon12:356.01:065.07:170.27:190.55:418:31Waning Gibbous4Mon
5Tue1:155.81:465.07:560.48:020.75:418:31Waning Gibbous5Tue
6Wed1:575.62:295.08:350.58:480.85:428:30Third Quarter6Wed
7Thu2:415.33:135.19:160.59:380.95:438:30Third Quarter7Thu
8Fri3:285.14:025.110:010.610:321.05:438:30Third Quarter8Fri
9Sat4:214.94:555.310:490.611:321.05:448:29Third Quarter9Sat
10Sun5:184.85:525.511:430.55:458:29Waning Crescent10Sun
11Mon6:194.86:475.812:330.912:390.45:458:28Waning Crescent11Mon
12Tue7:164.97:406.11:330.61:350.25:468:28Waning Crescent12Tue
13Wed8:105.18:316.42:300.42:300.05:478:27Waning Crescent13Wed
14Thu9:035.39:216.73:240.03:24-0.25:488:27New Moon14Thu
15Fri9:555.510:126.94:17-0.34:17-0.45:488:26New Moon15Fri
16Sat10:465.711:027.05:07-0.55:09-0.55:498:26New Moon16Sat
17Sun11:375.911:526.95:55-0.66:01-0.65:508:25Waxing Crescent17Sun
18Mon12:286.06:44-0.76:54-0.55:518:24Waxing Crescent18Mon
19Tue12:446.71:206.07:34-0.67:49-0.35:518:24Waxing Crescent19Tue
20Wed1:376.42:156.08:25-0.58:46-0.15:528:23First Quarter20Wed
21Thu2:326.03:116.09:17-0.39:450.15:538:22First Quarter21Thu
22Fri3:305.74:095.910:10-0.110:460.35:548:22First Quarter22Fri
23Sat4:315.35:105.911:060.111:490.45:558:21First Quarter23Sat
24Sun5:355.16:115.912:030.35:568:20Waxing Gibbous24Sun
25Mon6:385.07:086.012:520.51:000.35:568:19Waxing Gibbous25Mon
26Tue7:365.08:006.11:520.41:540.35:578:18Waxing Gibbous26Tue
27Wed8:275.18:476.22:450.32:440.35:588:17Waxing Gibbous27Wed
28Thu9:155.29:316.23:340.23:310.35:598:16Full Moon28Thu
29Fri9:595.210:136.34:170.14:140.26:008:15Full Moon29Fri
30Sat10:415.310:526.24:560.14:540.26:018:14Full Moon30Sat
31Sun11:205.311:306.25:330.15:330.36:028:13Full Moon31Sun
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 4:34 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 spring phase. Tonight's moon is 11% 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 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 Waning Crescent (11% illuminated). This places Port Mahon, 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