39.1850’ N, 75.4000’ W

Port Mahon, DE

71°
H 72°
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 2h 21m 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 - Apr 1828

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:585.710:196.34:16-0.34:28-0.35:496:29Full Moon1Tue
2Wed10:385.710:586.44:59-0.35:07-0.25:476:30Waning Gibbous2Wed
3Thu11:215.511:416.45:44-0.25:50-0.15:466:31Waning Gibbous3Thu
4Fri12:085.36:320.06:380.05:446:32Waning Gibbous4Fri
5Sat12:296.31:015.17:270.17:320.25:436:33Waning Gibbous5Sat
6Sun1:246.12:014.98:260.38:330.45:416:34Third Quarter6Sun
7Mon2:265.93:094.99:280.39:390.45:406:35Third Quarter7Mon
8Tue3:345.84:205.010:330.310:480.45:386:36Third Quarter8Tue
9Wed4:455.85:285.311:360.111:540.15:376:37Waning Crescent9Wed
10Thu5:525.96:285.712:35-0.15:356:37Waning Crescent10Thu
11Fri6:506.07:216.112:56-0.11:28-0.35:346:38Waning Crescent11Fri
12Sat7:436.18:106.41:53-0.42:17-0.55:326:39New Moon12Sat
13Sun8:326.18:566.52:45-0.63:03-0.65:316:40New Moon13Sun
14Mon9:196.09:396.63:34-0.63:46-0.55:296:41New Moon14Mon
15Tue10:035.910:216.54:20-0.54:27-0.35:286:42New Moon15Tue
16Wed10:475.611:026.35:03-0.35:07-0.15:266:43Waxing Crescent16Wed
17Thu11:305.411:436.15:46-0.15:470.25:256:44Waxing Crescent17Thu
18Fri12:145.16:300.26:280.45:236:45Waxing Crescent18Fri
19Sat12:255.91:014.87:150.57:120.75:226:46Waxing Crescent19Sat
20Sun1:115.61:514.68:020.78:000.95:206:47First Quarter20Sun
21Mon2:015.42:454.58:520.98:531.05:196:48First Quarter21Mon
22Tue2:555.23:444.59:451.09:501.05:186:49First Quarter22Tue
23Wed3:555.14:434.610:390.910:491.05:166:50First Quarter23Wed
24Thu4:555.15:384.911:320.811:470.85:156:51Waxing Gibbous24Thu
25Fri5:505.26:265.312:210.65:146:52Waxing Gibbous25Fri
26Sat6:395.37:105.612:420.51:080.35:126:53Waxing Gibbous26Sat
27Sun7:255.57:526.01:330.31:520.15:116:54Waxing Gibbous27Sun
28Mon8:085.68:326.32:220.02:36-0.15:106:55Full Moon28Mon
29Tue8:515.69:136.53:09-0.23:19-0.25:096:56Full Moon29Tue
30Wed9:355.79:556.73:56-0.34:02-0.35:076:57Full Moon30Wed
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