Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Port Mahon, DE.
Next low tide (tomorrow) : in 3h 49m at 1:33 am (1.0 ft)
Next high tide (tomorrow) : 7:20 am (4.4 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:55 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - May 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:455.68:146.01:530.22:140.06:017:55Waning Crescent1Mon
2Tue8:335.68:576.22:460.02:58-0.16:007:56Waning Crescent2Tue
3Wed9:195.59:386.33:35-0.13:400.05:597:57New Moon3Wed
4Thu10:025.410:176.34:20-0.14:190.05:587:58New Moon4Thu
5Fri10:445.310:556.35:020.04:570.25:577:59New Moon5Fri
6Sat11:245.111:336.25:420.15:330.35:558:00New Moon6Sat
7Sun12:044.96:210.36:100.55:548:01Waxing Crescent7Sun
8Mon12:116.112:454.77:010.56:480.65:538:02Waxing Crescent8Mon
9Tue12:515.91:274.67:430.77:300.75:528:03Waxing Crescent9Tue
10Wed1:335.72:114.58:270.88:160.85:518:04Waxing Crescent10Wed
11Thu2:185.53:004.49:120.99:080.95:508:05First Quarter11Thu
12Fri3:085.43:524.510:000.910:041.05:498:06First Quarter12Fri
13Sat4:015.24:484.710:490.911:041.05:498:07First Quarter13Sat
14Sun4:595.15:455.011:410.75:488:07First Quarter14Sun
15Mon5:585.16:395.412:060.812:320.55:478:08Waxing Gibbous15Mon
16Tue6:555.17:285.91:060.61:230.35:468:09Waxing Gibbous16Tue
17Wed7:475.28:166.32:030.42:130.15:458:10Waxing Gibbous17Wed
18Thu8:385.39:046.62:590.13:03-0.15:448:11Full Moon18Thu
19Fri9:295.49:526.83:52-0.23:54-0.25:448:12Full Moon19Fri
20Sat10:215.410:427.04:45-0.34:44-0.35:438:13Full Moon20Sat
21Sun11:135.411:336.95:37-0.45:36-0.35:428:14Full Moon21Sun
22Mon12:065.36:29-0.46:29-0.25:418:15Waning Gibbous22Mon
23Tue12:256.81:015.27:23-0.37:24-0.15:418:15Waning Gibbous23Tue
24Wed1:216.61:595.28:18-0.28:230.15:408:16Waning Gibbous24Wed
25Thu2:186.23:005.29:130.09:240.35:408:17Third Quarter25Thu
26Fri3:185.94:015.310:080.110:250.45:398:18Third Quarter26Fri
27Sat4:195.65:035.411:020.211:290.55:398:19Third Quarter27Sat
28Sun5:225.46:035.611:570.25:388:19Waning Crescent28Sun
29Mon6:225.26:575.812:310.512:490.25:388:20Waning Crescent29Mon
30Tue7:175.17:455.91:300.41:380.25:378:21Waning Crescent30Tue
31Wed8:085.18:306.12:240.32:250.35:378:21Waning Crescent31Wed
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 4:26 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 79% 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 Gibbous (79% 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