Tides Today & Tomorrow in Port Mahon, DE

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Port Mahon, DE.
Next low tide : 9:58 am (0.4 ft)
Next high tide : in 2h 47m at 3:29 am (5.0 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:06 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8554399
Common Questions About Tides

Port Mahon, DE Tides - Jan 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:595.32:245.18:410.29:040.17:214:49First Quarter1Sat
2Sun2:575.43:274.99:450.310:020.17:214:49First Quarter2Sun
3Mon4:015.54:364.710:540.211:040.07:214:50Waxing Gibbous3Mon
4Tue5:075.85:444.812:020.07:214:51Waxing Gibbous4Tue
5Wed6:106.06:464.912:07-0.11:06-0.27:214:52Waxing Gibbous5Wed
6Thu7:106.37:445.11:07-0.42:05-0.47:214:53Waxing Gibbous6Thu
7Fri8:056.48:395.22:05-0.63:01-0.67:214:54Full Moon7Fri
8Sat8:596.59:315.43:00-0.73:51-0.77:214:55Full Moon8Sat
9Sun9:496.410:205.43:52-0.84:39-0.77:214:56Full Moon9Sun
10Mon10:376.311:085.44:41-0.75:24-0.67:204:57Waning Gibbous10Mon
11Tue11:236.011:545.45:29-0.66:08-0.47:204:58Waning Gibbous11Tue
12Wed12:095.76:17-0.36:51-0.27:204:59Waning Gibbous12Wed
13Thu12:415.312:565.37:050.07:340.07:205:00Waning Gibbous13Thu
14Fri1:285.11:444.97:540.38:170.37:195:01Third Quarter14Fri
15Sat2:175.02:354.68:450.59:020.57:195:02Third Quarter15Sat
16Sun3:084.93:314.39:390.79:510.67:195:03Third Quarter16Sun
17Mon4:034.94:314.210:370.710:430.67:185:04Third Quarter17Mon
18Tue5:005.05:314.211:360.711:370.67:185:05Waning Crescent18Tue
19Wed5:555.26:254.312:320.67:175:06Waning Crescent19Wed
20Thu6:455.47:134.412:290.41:240.47:175:07Waning Crescent20Thu
21Fri7:315.67:584.61:190.22:110.27:165:08Waning Crescent21Fri
22Sat8:135.88:394.82:060.02:540.07:165:10New Moon22Sat
23Sun8:545.99:184.92:52-0.23:35-0.27:155:11New Moon23Sun
24Mon9:326.09:565.13:35-0.34:14-0.37:155:12New Moon24Mon
25Tue10:116.010:345.34:17-0.44:52-0.47:145:13New Moon25Tue
26Wed10:506.011:145.55:00-0.45:30-0.47:135:14Waxing Crescent26Wed
27Thu11:315.811:565.65:44-0.36:11-0.47:125:15Waxing Crescent27Thu
28Fri12:165.66:32-0.26:54-0.37:125:16Waxing Crescent28Fri
29Sat12:425.61:065.37:26-0.17:43-0.17:115:18First Quarter29Sat
30Sun1:345.62:034.98:250.18:370.07:105:19First Quarter30Sun
31Mon2:325.63:074.69:300.39:380.17:095:20First Quarter31Mon
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 6:43 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 neap phase. Tonight's moon is 44% 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 minimum.

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 Third Quarter (44% illuminated). This places Port Mahon, DE in a neap tide cycle, so tidal ranges are near their weekly minimum 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