Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Port Mahon, DE.
Next low tide (tomorrow) : 7:00 am (-0.4 ft)
Next high tide (tomorrow) : in 5h 44m at 12:12 am (6.6 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Mar 1986

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:296.012:545.27:15-0.17:260.06:345:53Waning Gibbous1Sat
2Sun1:215.91:514.88:150.28:210.36:325:54Third Quarter2Sun
3Mon2:205.72:574.49:210.49:250.56:315:55Third Quarter3Mon
4Tue3:275.64:134.210:330.510:350.66:295:56Third Quarter4Tue
5Wed4:435.55:304.311:450.411:460.56:285:57Waning Crescent5Wed
6Thu5:555.66:374.612:510.26:265:59Waning Crescent6Thu
7Fri6:585.87:325.012:510.21:470.06:256:00Waning Crescent7Fri
8Sat7:516.08:215.31:480.02:36-0.36:236:01Waning Crescent8Sat
9Sun8:386.19:055.52:40-0.33:19-0.46:226:02New Moon9Sun
10Mon9:216.19:455.73:27-0.43:57-0.46:206:03New Moon10Mon
11Tue10:016.010:235.84:09-0.44:33-0.36:196:04New Moon11Tue
12Wed10:405.810:595.84:49-0.35:06-0.26:176:05Waxing Crescent12Wed
13Thu11:185.511:345.75:28-0.15:390.16:166:06Waxing Crescent13Thu
14Fri11:565.26:070.16:120.36:146:07Waxing Crescent14Fri
15Sat12:115.612:374.86:480.46:470.56:126:08Waxing Crescent15Sat
16Sun12:495.51:204.47:330.77:270.86:116:09First Quarter16Sun
17Mon1:335.32:104.18:230.98:140.96:096:10First Quarter17Mon
18Tue2:235.13:083.99:201.19:101.06:086:11First Quarter18Tue
19Wed3:235.04:143.910:231.210:141.06:066:12First Quarter19Wed
20Thu4:305.15:204.011:271.111:190.96:046:13Waxing Gibbous20Thu
21Fri5:355.26:174.412:240.86:036:14Waxing Gibbous21Fri
22Sat6:305.57:054.812:190.61:140.56:016:15Waxing Gibbous22Sat
23Sun7:185.87:495.31:150.32:000.16:006:16Waxing Gibbous23Sun
24Mon8:026.08:315.72:06-0.12:42-0.25:586:17Full Moon24Mon
25Tue8:466.29:136.12:55-0.43:23-0.45:576:18Full Moon25Tue
26Wed9:296.29:546.43:42-0.64:04-0.65:556:19Full Moon26Wed
27Thu10:136.110:376.64:29-0.64:45-0.55:536:20Full Moon27Thu
28Fri10:595.811:216.65:17-0.65:28-0.45:526:21Waning Gibbous28Fri
29Sat11:475.56:08-0.46:14-0.15:506:22Waning Gibbous29Sat
30Sun12:106.512:405.17:04-0.17:070.25:496:23Waning Gibbous30Sun
31Mon1:046.21:414.78:050.28:060.55:476:24Third Quarter31Mon
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 3:36 am — 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 7% 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 Waxing Crescent (7% 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