Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Port Mahon, DE.
Next low tide : in 3h 36m at 11:24 am (0.3 ft)
Next high tide : 5:32 pm (5.9 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Jul 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:095.04:455.210:360.611:131.05:398:31Third Quarter1Fri
2Sat5:054.85:395.311:240.75:398:31Third Quarter2Sat
3Sun6:034.66:325.412:101.012:140.75:408:31Waning Crescent3Sun
4Mon6:594.67:225.61:070.91:050.65:408:31Waning Crescent4Mon
5Tue7:504.78:085.82:010.81:540.55:418:31Waning Crescent5Tue
6Wed8:374.88:526.02:510.62:430.45:418:30Waning Crescent6Wed
7Thu9:214.99:346.23:380.43:290.25:428:30New Moon7Thu
8Fri10:045.010:146.34:220.24:150.15:428:30New Moon8Fri
9Sat10:455.110:546.45:030.14:590.05:438:30New Moon9Sat
10Sun11:255.311:336.45:43-0.15:420.05:448:29New Moon10Sun
11Mon12:055.46:23-0.16:270.05:448:29Waxing Crescent11Mon
12Tue12:156.412:485.67:05-0.27:140.05:458:28Waxing Crescent12Tue
13Wed12:596.21:345.77:48-0.28:050.15:468:28Waxing Crescent13Wed
14Thu1:476.02:245.88:34-0.19:000.35:468:27First Quarter14Thu
15Fri2:405.73:185.99:240.010:000.45:478:27First Quarter15Fri
16Sat3:385.44:176.010:180.111:040.45:488:26First Quarter16Sat
17Sun4:425.15:216.111:180.25:498:26First Quarter17Sun
18Mon5:515.06:266.212:120.412:200.25:508:25Waxing Gibbous18Mon
19Tue6:585.07:286.41:180.31:230.15:508:24Waxing Gibbous19Tue
20Wed8:005.28:266.62:210.12:23-0.15:518:24Waxing Gibbous20Wed
21Thu8:575.39:196.73:18-0.13:20-0.25:528:23Full Moon21Thu
22Fri9:505.510:106.74:11-0.34:13-0.35:538:22Full Moon22Fri
23Sat10:405.610:576.64:59-0.45:02-0.35:548:22Full Moon23Sat
24Sun11:265.711:426.45:43-0.35:48-0.15:548:21Waning Gibbous24Sun
25Mon12:115.76:24-0.26:330.05:558:20Waning Gibbous25Mon
26Tue12:256.112:545.67:04-0.17:180.35:568:19Waning Gibbous26Tue
27Wed1:085.81:375.57:430.18:030.55:578:18Waning Gibbous27Wed
28Thu1:525.52:215.58:230.38:490.85:588:17Third Quarter28Thu
29Fri2:385.23:075.49:040.59:381.05:598:16Third Quarter29Fri
30Sat3:274.93:565.39:470.710:311.16:008:15Third Quarter30Sat
31Sun4:214.64:495.310:350.811:291.26:008:14Third Quarter31Sun
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 2:28 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 30% 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 Waning Crescent (30% 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