Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Port Mahon, DE.
Next low tide (tomorrow) : 2:39 am (0.2 ft)
Next high tide : in 4h 35m at 7:38 pm (6.4 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Jan 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:565.33:195.39:32-0.110:03-0.27:204:49Third Quarter1Sun
2Mon3:595.44:265.110:370.011:02-0.27:204:50Third Quarter2Mon
3Tue5:035.65:305.011:41-0.17:214:51Waning Crescent3Tue
4Wed6:025.86:305.112:00-0.212:43-0.27:214:52Waning Crescent4Wed
5Thu6:566.07:245.112:55-0.31:40-0.37:214:53Waning Crescent5Thu
6Fri7:466.18:145.11:47-0.32:32-0.47:204:54New Moon6Fri
7Sat8:336.19:015.12:36-0.43:20-0.57:204:55New Moon7Sat
8Sun9:186.19:455.13:22-0.44:04-0.47:204:56New Moon8Sun
9Mon10:006.010:275.04:04-0.34:45-0.37:204:57New Moon9Mon
10Tue10:415.911:085.04:45-0.25:24-0.27:204:58Waxing Crescent10Tue
11Wed11:225.711:484.95:250.06:020.07:204:59Waxing Crescent11Wed
12Thu12:025.56:050.16:410.27:195:00Waxing Crescent12Thu
13Fri12:294.812:455.36:480.37:200.37:195:01Waxing Crescent13Fri
14Sat1:124.71:295.07:330.48:020.47:195:02First Quarter14Sat
15Sun1:574.72:174.78:230.68:460.57:185:03First Quarter15Sun
16Mon2:464.73:104.59:170.79:350.57:185:04First Quarter16Mon
17Tue3:394.84:084.410:150.710:280.57:175:05First Quarter17Tue
18Wed4:365.05:084.411:160.611:240.37:175:06Waxing Gibbous18Wed
19Thu5:335.26:054.512:150.47:165:07Waxing Gibbous19Thu
20Fri6:255.56:574.712:190.11:110.27:165:09Waxing Gibbous20Fri
21Sat7:155.97:464.91:13-0.12:04-0.17:155:10Waxing Gibbous21Sat
22Sun8:036.28:345.22:05-0.42:54-0.47:155:11Full Moon22Sun
23Mon8:516.49:225.42:56-0.73:42-0.77:145:12Full Moon23Mon
24Tue9:386.610:105.63:46-0.84:29-0.87:135:13Full Moon24Tue
25Wed10:266.610:575.74:35-0.95:16-0.97:135:14Waning Gibbous25Wed
26Thu11:156.411:475.85:25-0.96:03-0.87:125:15Waning Gibbous26Thu
27Fri12:066.26:18-0.86:53-0.77:115:17Waning Gibbous27Fri
28Sat12:395.71:005.87:14-0.67:45-0.57:105:18Waning Gibbous28Sat
29Sun1:345.71:575.48:12-0.38:39-0.37:095:19Third Quarter29Sun
30Mon2:325.62:595.19:14-0.19:36-0.17:095:20Third Quarter30Mon
31Tue3:345.54:054.810:180.110:360.17:085:21Third Quarter31Tue
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 11:08 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 11% 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 Crescent (11% 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