Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Port Mahon, DE.
Next low tide : 4:10 pm (0.5 ft)
Next high tide : in 3h 40m at 10:05 am (4.7 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:38 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Jan 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:316.710:045.43:34-0.84:25-0.77:214:49Full Moon1Fri
2Sat10:226.710:545.54:26-0.95:14-0.87:214:50Waning Gibbous2Sat
3Sun11:136.511:465.65:19-0.96:03-0.87:214:51Waning Gibbous3Sun
4Mon12:056.26:13-0.76:52-0.67:214:52Waning Gibbous4Mon
5Tue12:395.612:585.87:09-0.57:43-0.47:214:52Third Quarter5Tue
6Wed1:345.61:545.48:06-0.38:35-0.27:214:53Third Quarter6Wed
7Thu2:305.52:535.09:060.09:280.07:214:54Third Quarter7Thu
8Fri3:305.43:554.710:080.210:240.27:214:55Third Quarter8Fri
9Sat4:315.45:004.511:120.311:210.37:204:56Waning Crescent9Sat
10Sun5:315.46:014.512:140.37:204:57Waning Crescent10Sun
11Mon6:265.56:554.512:170.31:110.27:204:58Waning Crescent11Mon
12Tue7:155.67:444.61:090.22:020.17:204:59Waning Crescent12Tue
13Wed8:015.78:294.71:570.12:480.07:195:00New Moon13Wed
14Thu8:435.89:114.82:410.13:28-0.17:195:01New Moon14Thu
15Fri9:245.89:504.83:220.04:06-0.17:195:02New Moon15Fri
16Sat10:025.810:264.84:01-0.14:41-0.17:185:03New Moon16Sat
17Sun10:385.711:014.94:39-0.15:150.07:185:05Waxing Crescent17Sun
18Mon11:145.511:364.95:170.05:480.17:175:06Waxing Crescent18Mon
19Tue11:505.35:560.16:220.17:175:07Waxing Crescent19Tue
20Wed12:115.012:275.16:370.36:580.27:165:08Waxing Crescent20Wed
21Thu12:505.01:084.87:230.47:380.37:165:09First Quarter21Thu
22Fri1:335.11:554.68:130.68:230.37:155:10First Quarter22Fri
23Sat2:225.12:504.39:110.79:160.47:155:11First Quarter23Sat
24Sun3:205.23:554.210:160.710:180.47:145:12First Quarter24Sun
25Mon4:255.35:054.211:240.611:240.27:135:14Waxing Gibbous25Mon
26Tue5:325.66:114.512:290.37:135:15Waxing Gibbous26Tue
27Wed6:335.97:094.812:28-0.11:29-0.17:125:16Waxing Gibbous27Wed
28Thu7:306.38:045.11:28-0.42:25-0.47:115:17Full Moon28Thu
29Fri8:246.58:565.52:25-0.73:16-0.87:105:18Full Moon29Fri
30Sat9:166.79:475.83:20-1.04:04-1.07:095:19Full Moon30Sat
31Sun10:066.610:366.04:12-1.14:50-1.07:095:21Full Moon31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8554399)

Common Questions About Port Mahon, DE Tides

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

Slack tide in Port Mahon, DE is approximately 1:07 pm — 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 spring phase. Tonight's moon is 100% 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 Full Moon (100% 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