Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Port Mahon, DE.
Next low tide : 5:23 pm (-0.4 ft)
Next high tide : in 4h 27m at 11:05 am (5.4 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:48 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Jun 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:205.93:034.89:200.59:250.65:378:22First Quarter1Fri
2Sat3:145.84:005.010:120.410:250.65:368:22First Quarter2Sat
3Sun4:145.65:015.311:070.311:300.55:368:23First Quarter3Sun
4Mon5:185.66:025.612:040.25:368:24Waxing Gibbous4Mon
5Tue6:225.67:006.112:350.31:010.05:358:24Waxing Gibbous5Tue
6Wed7:235.77:556.51:380.01:56-0.25:358:25Waxing Gibbous6Wed
7Thu8:205.78:486.82:38-0.32:51-0.45:358:26Waxing Gibbous7Thu
8Fri9:165.79:407.03:36-0.53:44-0.55:358:26Full Moon8Fri
9Sat10:105.710:327.14:32-0.74:36-0.55:358:27Full Moon9Sat
10Sun11:045.611:247.05:25-0.75:28-0.55:348:27Full Moon10Sun
11Mon11:575.56:17-0.66:19-0.35:348:28Waning Gibbous11Mon
12Tue12:156.812:505.47:08-0.47:11-0.15:348:28Waning Gibbous12Tue
13Wed1:076.41:445.38:00-0.28:050.25:348:29Waning Gibbous13Wed
14Thu2:006.12:395.18:510.08:590.55:348:29Third Quarter14Thu
15Fri2:535.73:355.19:410.29:540.75:348:29Third Quarter15Fri
16Sat3:485.44:315.010:310.410:500.85:348:30Third Quarter16Sat
17Sun4:455.25:275.111:200.511:470.95:358:30Third Quarter17Sun
18Mon5:435.06:205.312:100.55:358:30Waning Crescent18Mon
19Tue6:385.07:095.512:440.812:580.55:358:31Waning Crescent19Tue
20Wed7:295.07:545.71:370.71:430.55:358:31Waning Crescent20Wed
21Thu8:175.08:365.92:270.52:270.45:358:31Waning Crescent21Thu
22Fri9:025.09:176.03:150.43:110.35:368:31New Moon22Fri
23Sat9:455.09:566.13:590.33:530.35:368:31New Moon23Sat
24Sun10:265.010:346.24:420.24:340.25:368:31New Moon24Sun
25Mon11:055.011:126.25:230.15:150.25:378:32New Moon25Mon
26Tue11:445.011:506.26:030.15:550.25:378:32Waxing Crescent26Tue
27Wed12:235.06:430.26:370.25:378:32Waxing Crescent27Wed
28Thu12:296.21:045.07:240.27:230.35:388:32Waxing Crescent28Thu
29Fri1:126.21:495.18:080.28:120.45:388:32Waxing Crescent29Fri
30Sat1:596.02:395.38:540.29:060.45:398:32First Quarter30Sat
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 2:14 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 2% 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 New Moon (2% 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