39.1850’ N, 75.4000’ W

Port Mahon, DE

48°
H 67°
L 49°
NW
8mph
Low tide
1:26 pm

Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Thursday, October 22, 2026
The tide is currently falling in Port Mahon, DE.
Next low tide : in 6h 01m at 1:26 pm (0.6 ft)
Next high tide : 7:28 pm (5.7 ft)
Sunset today : 6:13 pm
Sunrise tomorrow : 7:18 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Jun 1793

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:376.03:215.49:290.09:510.34:407:25Third Quarter1Sat
2Sun3:415.74:255.510:270.010:550.34:397:26Third Quarter2Sun
3Mon4:475.65:265.811:240.011:590.24:397:27Waning Crescent3Mon
4Tue5:495.56:226.012:19-0.14:397:27Waning Crescent4Tue
5Wed6:455.57:126.212:580.01:11-0.14:397:28Waning Crescent5Wed
6Thu7:365.57:596.41:54-0.12:00-0.14:387:28Waning Crescent6Thu
7Fri8:255.58:436.42:44-0.22:46-0.14:387:29New Moon7Fri
8Sat9:115.49:266.43:31-0.23:290.04:387:30New Moon8Sat
9Sun9:555.310:076.34:15-0.14:100.14:387:30New Moon9Sun
10Mon10:385.210:476.24:560.04:500.24:387:31Waxing Crescent10Mon
11Tue11:205.111:276.05:360.15:290.44:387:31Waxing Crescent11Tue
12Wed12:024.96:150.36:100.54:387:32Waxing Crescent12Wed
13Thu12:075.912:454.96:560.46:530.64:387:32Waxing Crescent13Thu
14Fri12:505.71:294.87:370.57:390.84:387:32First Quarter14Fri
15Sat1:355.52:164.88:200.68:290.94:387:33First Quarter15Sat
16Sun2:235.33:064.99:050.79:230.94:387:33First Quarter16Sun
17Mon3:155.13:595.19:530.610:210.94:387:33First Quarter17Mon
18Tue4:115.04:535.310:440.611:210.84:387:34First Quarter18Tue
19Wed5:104.95:465.611:370.44:387:34Waxing Gibbous19Wed
20Thu6:055.06:366.012:200.612:300.34:387:34Waxing Gibbous20Thu
21Fri6:585.17:246.31:160.41:220.14:397:34Waxing Gibbous21Fri
22Sat7:495.38:126.62:100.12:14-0.14:397:35Full Moon22Sat
23Sun8:405.49:016.83:03-0.23:06-0.34:397:35Full Moon23Sun
24Mon9:315.59:516.93:54-0.43:57-0.44:397:35Full Moon24Mon
25Tue10:225.610:416.94:44-0.64:48-0.44:407:35Waning Gibbous25Tue
26Wed11:145.611:326.85:34-0.65:40-0.44:407:35Waning Gibbous26Wed
27Thu12:075.76:25-0.66:35-0.34:407:35Waning Gibbous27Thu
28Fri12:266.61:035.77:18-0.57:33-0.14:417:35Waning Gibbous28Fri
29Sat1:226.32:005.78:10-0.38:320.14:417:35Third Quarter29Sat
30Sun2:205.92:595.79:04-0.29:330.24:427:35Third Quarter30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8554399)

Common Questions About Port Mahon, DE Tides

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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 86% 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 Gibbous (86% 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