Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Port Mahon, DE.
Next low tide (tomorrow) : 7:38 am (0.1 ft)
Next high tide (tomorrow) : in 3h 41m at 1:00 am (5.9 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Jan 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:436.15:45-0.56:35-0.37:204:50Waning Gibbous1Tue
2Wed12:185.012:355.86:37-0.27:24-0.17:204:50Waning Gibbous2Wed
3Thu1:115.01:275.47:310.08:120.17:204:51Third Quarter3Thu
4Fri2:044.92:195.18:250.38:590.27:204:52Third Quarter4Fri
5Sat2:574.93:144.89:200.59:470.47:204:53Third Quarter5Sat
6Sun3:514.94:114.510:160.610:360.57:204:54Third Quarter6Sun
7Mon4:465.05:094.411:140.611:250.57:204:55Waning Crescent7Mon
8Tue5:385.16:044.412:100.57:204:56Waning Crescent8Tue
9Wed6:265.36:544.412:130.51:020.47:204:57Waning Crescent9Wed
10Thu7:115.57:404.51:000.41:510.27:204:58Waning Crescent10Thu
11Fri7:555.68:234.51:450.32:370.17:204:59New Moon11Fri
12Sat8:365.89:034.62:290.13:200.07:195:00New Moon12Sat
13Sun9:165.99:424.63:110.04:000.07:195:01New Moon13Sun
14Mon9:545.910:194.73:52-0.14:380.07:195:02New Moon14Mon
15Tue10:315.910:554.74:32-0.15:16-0.17:185:03Waxing Crescent15Tue
16Wed11:095.911:334.85:13-0.15:54-0.17:185:04Waxing Crescent16Wed
17Thu11:495.75:55-0.16:340.07:175:05Waxing Crescent17Thu
18Fri12:145.012:325.66:420.07:160.07:175:06Waxing Crescent18Fri
19Sat12:595.11:205.37:330.28:010.07:165:08First Quarter19Sat
20Sun1:505.22:155.08:310.38:520.17:165:09First Quarter20Sun
21Mon2:465.33:174.79:350.39:490.27:155:10First Quarter21Mon
22Tue3:495.44:264.510:450.310:520.27:155:11First Quarter22Tue
23Wed4:565.65:374.511:550.211:570.17:145:12Waxing Gibbous23Wed
24Thu6:025.96:424.61:01-0.17:135:13Waxing Gibbous24Thu
25Fri7:036.17:414.812:59-0.12:03-0.37:125:14Waxing Gibbous25Fri
26Sat8:016.38:365.01:59-0.42:59-0.57:125:16Full Moon26Sat
27Sun8:566.49:285.22:55-0.63:49-0.77:115:17Full Moon27Sun
28Mon9:476.410:185.43:48-0.74:36-0.77:105:18Full Moon28Mon
29Tue10:356.311:045.44:37-0.75:21-0.67:095:19Waning Gibbous29Tue
30Wed11:216.011:505.45:25-0.66:03-0.47:085:20Waning Gibbous30Wed
31Thu12:065.76:12-0.36:45-0.27:085:21Waning Gibbous31Thu
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 4:19 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 spring phase. Tonight's moon is 84% 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 Waning Gibbous (84% 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