Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Friday, June 5, 2026
The tide is currently falling in Port Mahon, DE.
Next low tide : in 4h 53m at 8:03 am (0.6 ft)
Next high tide : 1:43 pm (4.6 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waning Gibbous (76% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Apr 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:015.86:20-0.86:28-0.56:457:25Waning Gibbous1Sun
2Mon12:246.812:535.57:13-0.57:19-0.26:437:26Waning Gibbous2Mon
3Tue1:156.51:485.18:09-0.18:130.16:417:27Waning Gibbous3Tue
4Wed2:116.12:484.89:080.39:110.56:407:28Third Quarter4Wed
5Thu3:115.73:534.610:080.510:130.76:387:29Third Quarter5Thu
6Fri4:155.45:024.511:110.711:170.96:377:30Third Quarter6Fri
7Sat5:235.36:094.712:120.66:357:31Third Quarter7Sat
8Sun6:275.37:064.912:200.81:080.56:347:32Waning Crescent8Sun
9Mon7:215.47:535.21:180.71:550.46:327:33Waning Crescent9Mon
10Tue8:075.58:355.52:090.52:370.26:317:34Waning Crescent10Tue
11Wed8:505.59:135.72:550.33:150.16:297:35Waning Crescent11Wed
12Thu9:305.59:495.93:380.13:500.16:287:36New Moon12Thu
13Fri10:085.510:246.04:180.14:250.16:267:37New Moon13Fri
14Sat10:455.310:576.14:570.04:590.16:257:38New Moon14Sat
15Sun11:215.211:306.15:350.15:320.26:237:39New Moon15Sun
16Mon11:565.06:130.26:070.36:227:40Waxing Crescent16Mon
17Tue12:056.112:324.86:530.46:440.46:207:41Waxing Crescent17Tue
18Wed12:426.01:124.77:360.67:250.56:197:42Waxing Crescent18Wed
19Thu1:235.91:574.68:230.78:140.66:187:43Waxing Crescent19Thu
20Fri2:125.82:514.59:150.89:110.76:167:44First Quarter20Fri
21Sat3:075.73:524.610:110.810:140.76:157:45First Quarter21Sat
22Sun4:095.64:574.811:100.611:210.66:137:46First Quarter22Sun
23Mon5:165.66:025.212:090.46:127:47Waxing Gibbous23Mon
24Tue6:215.77:025.712:280.41:060.16:117:48Waxing Gibbous24Tue
25Wed7:225.97:556.21:310.01:59-0.26:097:49Waxing Gibbous25Wed
26Thu8:175.98:466.72:31-0.32:51-0.46:087:50Waxing Gibbous26Thu
27Fri9:106.09:367.03:27-0.63:41-0.66:077:50Full Moon27Fri
28Sat10:035.910:267.14:22-0.74:30-0.66:067:51Full Moon28Sat
29Sun10:545.811:167.15:15-0.75:19-0.56:047:52Full Moon29Sun
30Mon11:455.66:06-0.66:08-0.36:037:53Waning Gibbous30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8554399)

Common Questions About Port Mahon, DE Tides

Show All
What time does the tide turn (slack tide) in Port Mahon, DE today?

Slack tide in Port Mahon, DE is approximately 10:53 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 transitional phase. Tonight's moon is 76% 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 Gibbous (76% 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