39.1850’ N, 75.4000’ W

Port Mahon, DE

48°
H 67°
L 49°
NNW
8mph
High tide
7:12 am

Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Thursday, October 22, 2026
The tide is currently rising in Port Mahon, DE.
Next low tide : 1:26 pm (0.6 ft)
Next high tide : in 1h 57m at 7:12 am (5.2 ft)
Sunset today : 6:13 pm
Sunrise tomorrow : 7:18 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Sep 1793

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:315.06:475.912:430.712:380.75:346:35Waning Crescent1Sun
2Mon7:195.27:326.01:310.61:260.65:356:34Waning Crescent2Mon
3Tue8:025.38:146.12:150.42:110.45:366:32New Moon3Tue
4Wed8:435.58:536.22:540.32:540.35:376:31New Moon4Wed
5Thu9:215.69:316.23:310.23:350.25:386:29New Moon5Thu
6Fri9:575.710:076.14:060.24:140.25:396:27New Moon6Fri
7Sat10:315.810:425.94:400.24:530.35:396:26Waxing Crescent7Sat
8Sun11:055.811:175.85:140.25:330.45:406:24Waxing Crescent8Sun
9Mon11:405.911:545.65:490.36:140.65:416:23Waxing Crescent9Mon
10Tue12:195.96:260.47:000.75:426:21Waxing Crescent10Tue
11Wed12:365.31:045.97:090.57:520.85:436:19First Quarter11Wed
12Thu1:255.11:565.97:580.68:500.95:446:18First Quarter12Thu
13Fri2:235.02:555.98:550.79:540.95:456:16First Quarter13Fri
14Sat3:294.94:026.09:590.611:000.75:466:15First Quarter14Sat
15Sun4:405.05:106.211:070.55:476:13Waxing Gibbous15Sun
16Mon5:475.36:136.512:030.412:120.25:486:11Waxing Gibbous16Mon
17Tue6:475.77:106.81:020.11:13-0.15:496:10Waxing Gibbous17Tue
18Wed7:426.18:046.91:57-0.32:11-0.45:496:08Full Moon18Wed
19Thu8:346.48:566.92:48-0.53:06-0.65:506:07Full Moon19Thu
20Fri9:246.79:466.83:37-0.73:59-0.75:516:05Full Moon20Fri
21Sat10:126.810:366.64:24-0.74:50-0.65:526:03Waning Gibbous21Sat
22Sun11:006.711:256.25:09-0.55:40-0.35:536:02Waning Gibbous22Sun
23Mon11:496.65:56-0.36:320.05:546:00Waning Gibbous23Mon
24Tue12:155.812:396.36:440.07:260.35:555:58Waning Gibbous24Tue
25Wed1:075.41:316.07:330.48:200.75:565:57Third Quarter25Wed
26Thu2:035.12:265.78:250.79:170.95:575:55Third Quarter26Thu
27Fri3:034.93:245.69:190.910:151.05:585:54Third Quarter27Fri
28Sat4:054.84:265.510:151.011:131.05:595:52Third Quarter28Sat
29Sun5:064.85:245.611:111.06:005:50Waning Crescent29Sun
30Mon6:015.06:165.712:070.912:050.86:015:49Waning Crescent30Mon
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 spring phase. Tonight's moon is 86% 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 Waxing Gibbous (86% 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