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 : in 5h 51m at 12:30 pm (0.9 ft)
Next high tide : 6:49 pm (5.5 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 - Mar 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:065.77:384.912:590.31:500.26:335:54Waxing Gibbous1Mon
2Tue7:525.98:225.31:51-0.12:34-0.26:315:55Full Moon2Tue
3Wed8:356.19:035.72:40-0.43:16-0.46:305:56Full Moon3Wed
4Thu9:186.29:456.13:28-0.63:57-0.66:285:57Full Moon4Thu
5Fri10:016.210:266.34:14-0.74:37-0.76:275:58Full Moon5Fri
6Sat10:456.011:106.45:02-0.75:18-0.66:255:59Waning Gibbous6Sat
7Sun11:325.711:566.45:51-0.56:03-0.46:246:00Waning Gibbous7Sun
8Mon12:225.36:44-0.36:52-0.16:226:01Waning Gibbous8Mon
9Tue12:486.21:184.97:430.07:470.26:216:02Third Quarter9Tue
10Wed1:455.92:224.58:460.38:500.56:196:03Third Quarter10Wed
11Thu2:515.63:354.39:550.59:580.66:186:04Third Quarter11Thu
12Fri4:045.54:524.311:060.511:090.66:166:05Third Quarter12Fri
13Sat5:195.56:024.612:130.46:156:06Waning Crescent13Sat
14Sun7:245.67:595.012:150.42:100.17:137:07Waning Crescent14Sun
15Mon8:175.88:475.32:140.12:58-0.17:127:08Waning Crescent15Mon
16Tue9:045.99:305.63:06-0.13:41-0.37:107:09New Moon16Tue
17Wed9:465.910:105.83:53-0.24:19-0.37:087:10New Moon17Wed
18Thu10:265.910:465.94:35-0.34:54-0.37:077:11New Moon18Thu
19Fri11:035.711:215.95:14-0.25:27-0.17:057:12New Moon19Fri
20Sat11:405.511:555.95:52-0.15:580.07:047:13Waxing Crescent20Sat
21Sun12:175.26:290.16:300.27:027:14Waxing Crescent21Sun
22Mon12:295.812:554.97:080.37:030.47:007:15Waxing Crescent22Mon
23Tue1:055.71:344.67:490.67:410.66:597:16Waxing Crescent23Tue
24Wed1:455.62:184.38:350.88:240.86:577:17First Quarter24Wed
25Thu2:315.43:094.19:271.19:170.96:567:18First Quarter25Thu
26Fri3:245.24:094.010:251.210:171.06:547:19First Quarter26Fri
27Sat4:265.25:164.111:271.111:230.96:537:20First Quarter27Sat
28Sun5:335.26:204.412:280.96:517:21Waxing Gibbous28Sun
29Mon6:355.47:154.812:280.71:220.66:497:22Waxing Gibbous29Mon
30Tue7:305.78:045.31:280.42:110.26:487:23Waxing Gibbous30Tue
31Wed8:195.98:495.92:240.02:57-0.16:467:24Waxing Gibbous31Wed
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 3:39 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 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