39.1850’ N, 75.4000’ W

Port Mahon, DE

70°
H 71°
L 49°
NW
15mph
High tide
6:01 pm

Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Monday, October 5, 2026
The tide is currently rising in Port Mahon, DE.
Next low tide (tomorrow) : 12:55 am (0.5 ft)
Next high tide : in 3h 11m at 6:01 pm (5.9 ft)
Sunset today : 6:38 pm
Sunrise tomorrow : 7:01 am
Moon phase : Waning Crescent (27% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - May 1828

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:205.610:396.74:42-0.34:47-0.35:066:58Waning Gibbous1Thu
2Fri11:075.511:266.75:30-0.35:34-0.25:056:59Waning Gibbous2Fri
3Sat11:575.46:21-0.26:260.05:047:00Waning Gibbous3Sat
4Sun12:176.512:535.37:16-0.17:220.15:027:01Waning Gibbous4Sun
5Mon1:136.31:535.28:130.08:230.35:017:02Third Quarter5Mon
6Tue2:146.12:575.29:120.19:270.45:007:03Third Quarter6Tue
7Wed3:195.84:045.310:120.110:330.44:597:04Third Quarter7Wed
8Thu4:275.75:095.511:110.111:380.24:587:05Waning Crescent8Thu
9Fri5:325.76:085.912:08-0.14:577:06Waning Crescent9Fri
10Sat6:305.77:006.112:390.01:01-0.24:567:06Waning Crescent10Sat
11Sun7:225.77:486.41:36-0.11:50-0.24:557:07Waning Crescent11Sun
12Mon8:115.78:326.52:28-0.22:36-0.24:547:08New Moon12Mon
13Tue8:575.69:156.53:16-0.33:19-0.24:537:09New Moon13Tue
14Wed9:415.59:566.44:00-0.24:00-0.14:527:10New Moon14Wed
15Thu10:245.410:356.34:42-0.14:390.14:517:11New Moon15Thu
16Fri11:065.211:156.15:230.15:180.34:507:12Waxing Crescent16Fri
17Sat11:485.011:565.96:030.35:580.54:497:13Waxing Crescent17Sat
18Sun12:324.96:450.56:400.64:497:14Waxing Crescent18Sun
19Mon12:385.71:174.77:280.67:260.84:487:15Waxing Crescent19Mon
20Tue1:245.52:064.78:130.78:150.94:477:16First Quarter20Tue
21Wed2:125.32:574.78:590.89:091.04:467:16First Quarter21Wed
22Thu3:055.23:524.89:480.810:071.04:467:17First Quarter22Thu
23Fri4:025.14:475.110:400.711:070.94:457:18First Quarter23Fri
24Sat5:005.05:405.411:320.54:447:19Waxing Gibbous24Sat
25Sun5:555.16:295.812:050.712:230.34:447:20Waxing Gibbous25Sun
26Mon6:465.27:156.11:010.41:120.14:437:21Waxing Gibbous26Mon
27Tue7:365.38:016.51:540.12:02-0.14:427:21Full Moon27Tue
28Wed8:245.58:476.72:46-0.12:51-0.34:427:22Full Moon28Wed
29Thu9:145.59:346.93:37-0.33:40-0.44:417:23Full Moon29Thu
30Fri10:035.610:236.94:26-0.54:30-0.44:417:24Full Moon30Fri
31Sat10:545.611:136.95:16-0.55:20-0.44:417:24Waning Gibbous31Sat
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 transitional phase. Tonight's moon is 27% 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 Waning Crescent (27% 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