Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Port Mahon, DE.
Next low tide : in 1h 25m at 8:22 pm (0.6 ft)
Next high tide (tomorrow) : 2:10 am (5.7 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:41 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Nov 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:234.912:395.76:380.77:270.86:295:00Waxing Crescent1Wed
2Thu1:114.61:285.57:230.98:171.06:304:59First Quarter2Thu
3Fri2:034.42:215.48:131.09:081.16:324:58First Quarter3Fri
4Sat2:594.43:175.39:081.110:021.06:334:57First Quarter4Sat
5Sun3:584.44:165.310:051.010:550.96:344:56First Quarter5Sun
6Mon4:554.75:135.411:040.911:450.76:354:55Waxing Gibbous6Mon
7Tue5:475.06:045.512:000.66:364:54Waxing Gibbous7Tue
8Wed6:335.46:505.712:320.412:530.46:374:53Waxing Gibbous8Wed
9Thu7:155.87:345.81:170.11:430.16:384:52Waxing Gibbous9Thu
10Fri7:576.18:175.82:01-0.12:32-0.16:394:51Full Moon10Fri
11Sat8:386.49:025.82:45-0.33:20-0.26:414:50Full Moon11Sat
12Sun9:216.69:475.73:29-0.44:08-0.36:424:49Full Moon12Sun
13Mon10:066.710:355.64:14-0.44:58-0.36:434:48Waning Gibbous13Mon
14Tue10:536.711:255.45:01-0.35:50-0.26:444:47Waning Gibbous14Tue
15Wed11:446.55:52-0.26:450.06:454:47Waning Gibbous15Wed
16Thu12:215.212:406.36:470.07:440.16:464:46Waning Gibbous16Thu
17Fri1:215.01:416.17:480.28:450.26:474:45Third Quarter17Fri
18Sat2:264.92:475.88:510.39:460.26:484:44Third Quarter18Sat
19Sun3:345.03:555.79:560.310:460.26:494:44Third Quarter19Sun
20Mon4:405.25:015.711:010.211:440.06:514:43Waning Crescent20Mon
21Tue5:415.56:005.712:030.16:524:43Waning Crescent21Tue
22Wed6:345.86:535.712:36-0.11:00-0.16:534:42Waning Crescent22Wed
23Thu7:216.17:415.71:24-0.21:53-0.26:544:42Waning Crescent23Thu
24Fri8:056.28:265.62:09-0.32:41-0.36:554:41New Moon24Fri
25Sat8:476.39:095.52:52-0.23:26-0.26:564:41New Moon25Sat
26Sun9:276.29:515.33:32-0.14:09-0.16:574:40New Moon26Sun
27Mon10:076.110:325.14:100.04:490.06:584:40New Moon27Mon
28Tue10:466.011:134.94:480.25:300.26:594:40Waxing Crescent28Tue
29Wed11:265.811:544.75:250.36:110.47:004:39Waxing Crescent29Wed
30Thu12:075.76:050.56:540.67:014:39Waxing Crescent30Thu
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 11:16 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 72% 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 Waning Gibbous (72% 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