Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Port Mahon, DE.
Next low tide : 2:20 pm (0.1 ft)
Next high tide : in 3h 45m at 8:04 am (4.9 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:10 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - May 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:066.110:287.04:23-0.64:35-0.66:037:53New Moon1Wed
2Thu10:566.011:167.15:15-0.75:22-0.66:027:54New Moon2Thu
3Fri11:475.86:07-0.76:10-0.46:017:55Waxing Crescent3Fri
4Sat12:057.012:405.57:01-0.57:01-0.25:597:56Waxing Crescent4Sat
5Sun12:576.71:365.27:57-0.27:570.15:587:57Waxing Crescent5Sun
6Mon1:536.32:374.98:560.18:560.45:577:58First Quarter6Mon
7Tue2:536.03:424.89:570.39:590.65:567:59First Quarter7Tue
8Wed3:585.64:504.810:580.511:030.85:558:00First Quarter8Wed
9Thu5:065.45:564.911:590.55:548:01First Quarter9Thu
10Fri6:115.46:545.212:070.712:540.45:538:02Waxing Gibbous10Fri
11Sat7:075.47:435.51:070.61:440.35:528:03Waxing Gibbous11Sat
12Sun7:565.48:265.72:010.52:270.25:518:04Waxing Gibbous12Sun
13Mon8:405.59:065.92:490.33:070.25:508:05Waxing Gibbous13Mon
14Tue9:225.49:436.13:340.23:440.25:498:06Full Moon14Tue
15Wed10:035.410:196.14:160.14:200.25:488:07Full Moon15Wed
16Thu10:415.210:556.24:550.14:550.35:478:08Full Moon16Thu
17Fri11:195.111:306.15:340.15:290.45:468:09Full Moon17Fri
18Sat11:564.96:130.36:040.55:458:09Waning Gibbous18Sat
19Sun12:056.112:334.76:520.46:410.65:458:10Waning Gibbous19Sun
20Mon12:436.01:134.67:340.67:220.75:448:11Waning Gibbous20Mon
21Tue1:235.91:564.58:190.78:090.85:438:12Waning Gibbous21Tue
22Wed2:095.82:454.59:070.79:020.85:428:13Third Quarter22Wed
23Thu3:005.63:404.69:580.710:010.85:428:14Third Quarter23Thu
24Fri3:575.64:404.810:510.611:040.85:418:15Third Quarter24Fri
25Sat4:595.55:425.211:470.45:408:15Third Quarter25Sat
26Sun6:025.66:405.612:090.612:420.25:408:16Waning Crescent26Sun
27Mon7:025.67:346.11:130.31:35-0.15:398:17Waning Crescent27Mon
28Tue7:585.78:256.62:130.02:27-0.35:398:18Waning Crescent28Tue
29Wed8:525.79:166.93:11-0.33:19-0.45:388:19New Moon29Wed
30Thu9:465.710:077.14:07-0.54:10-0.55:388:19New Moon30Thu
31Fri10:395.610:587.15:01-0.65:01-0.55:378:20New Moon31Fri
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 11:12 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 spring phase. Tonight's moon is 6% 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 Crescent (6% 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