39.1850’ N, 75.4000’ W

Port Mahon, DE

86°
H -°
L 71°
WNW
7mph
Low tide
10:53 pm

Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Friday, September 4, 2026
The tide is currently falling in Port Mahon, DE.
Next low tide : in 6h 42m at 10:53 pm (1.0 ft)
Next high tide (tomorrow) : 4:25 am (4.6 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 6:33 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Aug 1893

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:465.511:596.16:020.06:110.35:027:13Waning Gibbous1Tue
2Wed12:285.76:420.07:000.45:027:12Waning Gibbous2Wed
3Thu12:445.81:145.87:240.17:530.55:037:11Third Quarter3Thu
4Fri1:345.52:065.98:100.28:520.65:047:10Third Quarter4Fri
5Sat2:305.23:036.09:010.39:580.75:057:09Third Quarter5Sat
6Sun3:354.84:076.010:010.511:090.75:067:07Third Quarter6Sun
7Mon4:464.75:166.211:060.55:077:06Waning Crescent7Mon
8Tue5:564.76:226.312:190.612:130.45:087:05Waning Crescent8Tue
9Wed7:014.97:236.51:240.31:160.25:097:04Waning Crescent9Wed
10Thu7:595.18:196.62:230.12:160.05:107:03New Moon10Thu
11Fri8:535.49:116.73:16-0.13:11-0.25:117:01New Moon11Fri
12Sat9:445.610:006.64:03-0.24:02-0.25:127:00New Moon12Sat
13Sun10:315.710:456.44:47-0.34:50-0.15:126:59Waxing Crescent13Sun
14Mon11:165.811:296.15:28-0.25:360.15:136:58Waxing Crescent14Mon
15Tue11:595.86:080.06:220.35:146:56Waxing Crescent15Tue
16Wed12:125.812:435.76:470.37:090.65:156:55Waxing Crescent16Wed
17Thu12:565.41:265.67:260.57:570.85:166:54First Quarter17Thu
18Fri1:435.02:135.58:070.88:471.15:176:52First Quarter18Fri
19Sat2:334.73:035.48:511.09:421.25:186:51First Quarter19Sat
20Sun3:304.43:595.39:401.110:421.35:196:49First Quarter20Sun
21Mon4:334.24:595.410:351.211:441.35:206:48Waxing Gibbous21Mon
22Tue5:354.35:565.611:331.15:216:47Waxing Gibbous22Tue
23Wed6:304.46:485.812:411.112:280.95:226:45Waxing Gibbous23Wed
24Thu7:194.67:346.01:320.81:200.75:236:44Waxing Gibbous24Thu
25Fri8:034.98:176.22:170.62:090.45:246:42Full Moon25Fri
26Sat8:445.28:576.42:590.32:560.25:246:41Full Moon26Sat
27Sun9:235.49:356.43:380.13:400.15:256:39Full Moon27Sun
28Mon10:015.710:146.44:15-0.14:230.05:266:38Full Moon28Mon
29Tue10:395.910:546.34:53-0.15:070.15:276:36Waning Gibbous29Tue
30Wed11:196.111:366.05:31-0.15:530.15:286:35Waning Gibbous30Wed
31Thu12:026.36:110.06:430.35:296:33Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8554399)

Common Questions About Port Mahon, DE Tides

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Is this week a spring tide or neap tide in Port Mahon, DE?

Port Mahon, DE is currently in a neap phase. Tonight's moon is 46% 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 minimum.

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 Third Quarter (46% illuminated). This places Port Mahon, DE in a neap tide cycle, so tidal ranges are near their weekly minimum 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