Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Port Mahon, DE.
Next low tide : in 3h 08m at 8:22 pm (0.1 ft)
Next high tide (tomorrow) : 2:17 am (6.0 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Dec 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:575.75:550.46:520.67:014:39Waning Gibbous1Fri
2Sat12:334.512:445.56:410.67:390.77:024:39Waning Gibbous2Sat
3Sun1:234.31:345.37:290.88:250.87:034:38Third Quarter3Sun
4Mon2:144.32:265.18:200.99:120.97:044:38Third Quarter4Mon
5Tue3:074.33:204.99:140.99:590.87:054:38Third Quarter5Tue
6Wed4:014.54:164.810:110.910:470.77:064:38Third Quarter6Wed
7Thu4:554.85:104.811:080.811:340.67:074:38Waning Crescent7Thu
8Fri5:445.16:014.812:040.67:084:38Waning Crescent8Fri
9Sat6:295.46:484.812:200.412:580.47:094:38Waning Crescent9Sat
10Sun7:125.77:334.81:050.21:490.27:094:38Waning Crescent10Sun
11Mon7:546.08:184.91:500.12:380.17:104:38New Moon11Mon
12Tue8:376.29:034.92:37-0.13:270.07:114:39New Moon12Tue
13Wed9:226.39:494.93:23-0.24:15-0.17:124:39New Moon13Wed
14Thu10:086.410:374.84:11-0.25:04-0.17:124:39Waxing Crescent14Thu
15Fri10:576.311:284.85:00-0.25:54-0.17:134:39Waxing Crescent15Fri
16Sat11:486.25:52-0.16:47-0.17:144:39Waxing Crescent16Sat
17Sun12:224.812:446.06:480.07:410.07:154:40Waxing Crescent17Sun
18Mon1:204.81:435.87:480.08:360.07:154:40First Quarter18Mon
19Tue2:214.92:445.58:510.19:300.07:164:41First Quarter19Tue
20Wed3:235.13:485.39:550.110:260.07:164:41First Quarter20Wed
21Thu4:255.34:525.111:000.111:21-0.17:174:41Waxing Gibbous21Thu
22Fri5:255.65:535.012:030.07:174:42Waxing Gibbous22Fri
23Sat6:205.96:485.012:15-0.11:03-0.17:184:43Waxing Gibbous23Sat
24Sun7:106.07:395.01:07-0.11:58-0.27:184:43Waxing Gibbous24Sun
25Mon7:586.18:285.01:56-0.22:49-0.37:194:44Full Moon25Mon
26Tue8:436.19:144.92:43-0.23:36-0.37:194:44Full Moon26Tue
27Wed9:276.09:584.83:27-0.14:19-0.27:194:45Full Moon27Wed
28Thu10:095.910:404.74:090.05:000.07:204:46Full Moon28Thu
29Fri10:505.811:214.64:490.05:400.17:204:46Waning Gibbous29Fri
30Sat11:315.75:290.26:190.37:204:47Waning Gibbous30Sat
31Sun12:034.512:125.56:100.36:580.47:204:48Waning Gibbous31Sun
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 11:19 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 transitional phase. Tonight's moon is 27% 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 Waxing Crescent (27% 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