Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Port Mahon, DE.
Next low tide : 6:50 pm (0.4 ft)
Next high tide : in 4h 12m at 12:37 pm (4.9 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - May 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:216.312:494.97:160.37:090.46:027:54Waning Gibbous1Thu
2Fri1:066.21:394.78:080.48:010.66:017:55Waning Gibbous2Fri
3Sat1:596.12:384.69:050.59:010.76:007:56Third Quarter3Sat
4Sun2:596.03:434.610:060.610:070.75:597:57Third Quarter4Sun
5Mon4:055.84:534.711:080.511:160.65:587:58Third Quarter5Mon
6Tue5:155.86:015.112:090.35:567:59Third Quarter6Tue
7Wed6:235.87:025.612:250.41:070.15:558:00Waning Crescent7Wed
8Thu7:235.97:566.11:290.12:00-0.25:548:01Waning Crescent8Thu
9Fri8:186.08:456.52:28-0.22:49-0.45:538:02Waning Crescent9Fri
10Sat9:095.99:326.73:24-0.43:36-0.45:528:03New Moon10Sat
11Sun9:585.810:186.84:16-0.54:22-0.45:518:04New Moon11Sun
12Mon10:465.611:026.75:05-0.55:05-0.35:508:05New Moon12Mon
13Tue11:325.411:466.55:52-0.35:480.05:498:06Waxing Crescent13Tue
14Wed12:185.16:38-0.16:310.35:488:07Waxing Crescent14Wed
15Thu12:306.31:064.97:250.27:160.55:488:08Waxing Crescent15Thu
16Fri1:155.91:564.68:130.58:030.85:478:08Waxing Crescent16Fri
17Sat2:035.62:484.59:020.88:531.05:468:09First Quarter17Sat
18Sun2:555.43:434.49:520.99:461.15:458:10First Quarter18Sun
19Mon3:505.24:414.410:421.010:421.25:448:11First Quarter19Mon
20Tue4:495.15:384.611:331.011:411.15:438:12First Quarter20Tue
21Wed5:475.06:314.912:220.95:438:13Waxing Gibbous21Wed
22Thu6:425.07:185.212:381.01:090.75:428:14Waxing Gibbous22Thu
23Fri7:315.18:015.61:330.81:530.55:418:15Waxing Gibbous23Fri
24Sat8:165.18:415.92:240.52:350.45:418:15Waxing Gibbous24Sat
25Sun8:595.19:206.13:130.43:170.25:408:16Full Moon25Sun
26Mon9:415.19:596.34:000.23:590.25:408:17Full Moon26Mon
27Tue10:235.010:406.44:460.14:420.15:398:18Full Moon27Tue
28Wed11:065.011:226.55:310.05:250.15:388:19Full Moon28Wed
29Thu11:525.06:170.06:100.25:388:19Waning Gibbous29Thu
30Fri12:076.512:404.97:060.17:000.25:378:20Waning Gibbous30Fri
31Sat12:566.41:334.97:580.17:550.35:378:21Waning Gibbous31Sat
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 3:43 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 88% 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 Gibbous (88% 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