Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently rising in Port Mahon, DE.
Next low tide : 9:54 pm (0.8 ft)
Next high tide : in 5h 06m at 3:04 pm (5.9 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:05 am
Moon phase : Third Quarter (55% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Jan 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:476.35:54-0.86:35-0.67:214:48Waning Gibbous1Sun
2Mon12:215.612:405.96:48-0.57:25-0.47:214:49Waning Gibbous2Mon
3Tue1:155.51:335.57:44-0.28:15-0.27:214:50Third Quarter3Tue
4Wed2:105.42:295.18:400.19:060.07:214:51Third Quarter4Wed
5Thu3:065.23:274.89:380.39:580.27:214:52Third Quarter5Thu
6Fri4:035.24:284.610:370.410:520.37:214:53Third Quarter6Fri
7Sat5:015.25:284.511:370.411:440.47:214:54Waning Crescent7Sat
8Sun5:555.36:224.512:330.47:214:55Waning Crescent8Sun
9Mon6:445.47:114.612:350.31:240.27:214:55Waning Crescent9Mon
10Tue7:305.67:564.71:220.22:100.17:214:56Waning Crescent10Tue
11Wed8:125.78:394.82:060.12:530.07:204:57New Moon11Wed
12Thu8:535.89:184.82:490.03:33-0.17:204:58New Moon12Thu
13Fri9:315.89:554.93:29-0.14:10-0.17:204:59New Moon13Fri
14Sat10:085.810:314.94:09-0.24:46-0.17:205:01New Moon14Sat
15Sun10:435.711:055.04:47-0.15:21-0.17:195:02Waxing Crescent15Sun
16Mon11:195.611:415.15:26-0.15:57-0.17:195:03Waxing Crescent16Mon
17Tue11:565.56:080.06:340.07:185:04Waxing Crescent17Tue
18Wed12:205.212:375.36:530.27:150.07:185:05Waxing Crescent18Wed
19Thu1:035.21:255.07:430.38:010.17:185:06First Quarter19Thu
20Fri1:535.32:194.88:400.48:530.27:175:07First Quarter20Fri
21Sat2:505.43:234.69:440.49:540.27:175:08First Quarter21Sat
22Sun3:545.54:334.510:530.410:590.17:165:09First Quarter22Sun
23Mon5:035.75:424.612:010.27:155:10Waxing Gibbous23Mon
24Tue6:086.06:454.912:04-0.11:04-0.27:155:12Waxing Gibbous24Tue
25Wed7:086.37:435.21:07-0.42:03-0.57:145:13Waxing Gibbous25Wed
26Thu8:046.58:375.52:05-0.72:57-0.87:135:14Full Moon26Thu
27Fri8:586.69:295.83:01-1.03:47-1.07:135:15Full Moon27Fri
28Sat9:496.610:195.93:54-1.14:34-1.07:125:16Full Moon28Sat
29Sun10:376.411:075.94:45-1.15:20-0.97:115:17Waning Gibbous29Sun
30Mon11:256.111:555.95:35-0.96:05-0.77:105:19Waning Gibbous30Mon
31Tue12:135.76:25-0.66:50-0.57:095:20Waning Gibbous31Tue
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 6:29 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 neap phase. Tonight's moon is 55% 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 minimum.

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 Third Quarter (55% illuminated). This places Port Mahon, DE in a neap tide cycle, so tidal ranges are near their weekly minimum 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