39.1850’ N, 75.4000’ W

Port Mahon, DE

77°
H 79°
L 65°
NNE
9mph
High tide
6:10 pm

Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Sunday, September 6, 2026
The tide is currently rising in Port Mahon, DE.
Next low tide (tomorrow) : 1:13 am (0.7 ft)
Next high tide : in 5h 15m at 6:10 pm (6.1 ft)
Sunset today : 7:24 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waning Crescent (24% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Jul 1885

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:575.06:120.26:130.54:387:31Waning Gibbous1Wed
2Thu12:065.912:365.16:500.36:570.64:397:31Waning Gibbous2Thu
3Fri12:475.71:185.27:300.37:450.74:397:31Third Quarter3Fri
4Sat1:315.52:055.38:140.38:370.74:407:31Third Quarter4Sat
5Sun2:215.32:575.49:010.39:350.84:417:30Third Quarter5Sun
6Mon3:185.23:545.69:540.310:390.74:417:30Third Quarter6Mon
7Tue4:215.14:565.910:520.211:440.54:427:30Waning Crescent7Tue
8Wed5:265.15:566.211:520.14:427:30Waning Crescent8Wed
9Thu6:285.26:536.512:480.212:52-0.14:437:29Waning Crescent9Thu
10Fri7:265.47:496.81:48-0.11:50-0.34:447:29New Moon10Fri
11Sat8:235.68:437.02:45-0.42:47-0.54:447:28New Moon11Sat
12Sun9:185.89:377.13:39-0.63:42-0.74:457:28New Moon12Sun
13Mon10:125.910:297.04:31-0.74:36-0.74:467:28New Moon13Mon
14Tue11:046.011:216.85:21-0.85:29-0.64:467:27Waxing Crescent14Tue
15Wed11:576.06:10-0.76:22-0.44:477:27Waxing Crescent15Wed
16Thu12:136.412:505.97:00-0.57:17-0.14:487:26Waxing Crescent16Thu
17Fri1:056.11:445.87:50-0.28:120.24:497:25First Quarter17Fri
18Sat1:595.72:385.78:400.09:080.54:507:25First Quarter18Sat
19Sun2:555.33:345.69:300.210:060.74:507:24First Quarter19Sun
20Mon3:545.04:315.610:220.411:060.74:517:23First Quarter20Mon
21Tue4:544.95:275.611:150.54:527:23Waxing Gibbous21Tue
22Wed5:524.86:195.712:040.712:070.64:537:22Waxing Gibbous22Wed
23Thu6:454.97:065.912:580.612:570.54:547:21Waxing Gibbous23Thu
24Fri7:335.07:506.01:470.51:430.54:547:20Waxing Gibbous24Fri
25Sat8:185.08:326.12:320.32:280.44:557:19Full Moon25Sat
26Sun9:005.19:126.23:140.23:100.34:567:19Full Moon26Sun
27Mon9:395.29:506.23:520.13:510.24:577:18Full Moon27Mon
28Tue10:165.210:266.24:290.14:300.24:587:17Full Moon28Tue
29Wed10:525.311:026.15:060.15:100.34:597:16Waning Gibbous29Wed
30Thu11:275.411:395.95:410.15:500.35:007:15Waning Gibbous30Thu
31Fri12:045.56:180.16:330.45:017:14Waning Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8554399)

Common Questions About Port Mahon, DE Tides

Collapse All
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 24% 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 Crescent (24% 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