Tides Today & Tomorrow in Marcus Hook, PA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Marcus Hook, PA.
Next low tide (tomorrow) : in 6h 12m at 12:26 am (0.9 ft)
Next high tide (tomorrow) : 5:51 am (5.5 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 6:16 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8540433
Common Questions About Tides

Marcus Hook, PA Tides - Mar 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:085.76:425.212:38-0.11:17-0.17:346:53First Quarter1Wed
2Thu7:065.67:415.01:300.02:140.07:336:54First Quarter2Thu
3Fri8:055.58:395.02:240.13:110.07:316:55First Quarter3Fri
4Sat9:045.59:365.03:180.14:070.07:306:56Waxing Gibbous4Sat
5Sun9:595.610:285.14:130.15:000.07:286:57Waxing Gibbous5Sun
6Mon10:495.711:165.35:050.05:49-0.17:266:58Waxing Gibbous6Mon
7Tue11:355.85:540.06:35-0.17:257:00Waxing Gibbous7Tue
8Wed12:005.312:185.86:41-0.17:180.07:237:01Full Moon8Wed
9Thu12:425.412:585.77:25-0.17:590.07:227:02Full Moon9Thu
10Fri1:215.41:365.78:080.08:370.17:207:03Full Moon10Fri
11Sat1:575.52:125.68:500.09:130.17:197:04Full Moon11Sat
12Sun2:305.52:465.49:300.19:480.27:177:05Waning Gibbous12Sun
13Mon3:005.63:205.310:100.110:220.27:157:06Waning Gibbous13Mon
14Tue3:315.73:555.210:520.210:560.27:147:07Waning Gibbous14Tue
15Wed4:075.74:385.111:400.311:380.37:127:08Waning Gibbous15Wed
16Thu4:535.75:324.912:340.47:117:09Third Quarter16Thu
17Fri5:505.76:384.812:300.31:340.47:097:10Third Quarter17Fri
18Sat6:585.77:464.91:320.32:370.47:077:11Third Quarter18Sat
19Sun8:085.88:525.02:400.33:400.47:067:12Waning Crescent19Sun
20Mon9:155.99:545.33:470.24:400.27:047:13Waning Crescent20Mon
21Tue10:176.210:505.74:500.15:360.07:037:14Waning Crescent21Tue
22Wed11:136.411:426.15:50-0.16:30-0.17:017:15Waning Crescent22Wed
23Thu12:066.56:46-0.37:21-0.26:597:16New Moon23Thu
24Fri12:336.312:576.67:41-0.48:10-0.36:587:17New Moon24Fri
25Sat1:226.51:486.58:33-0.58:57-0.26:567:18New Moon25Sat
26Sun2:116.62:396.49:24-0.49:44-0.16:557:19Waxing Crescent26Sun
27Mon2:596.63:306.110:14-0.310:300.16:537:20Waxing Crescent27Mon
28Tue3:486.54:225.911:04-0.111:170.36:517:21Waxing Crescent28Tue
29Wed4:406.35:165.611:560.16:507:22First Quarter29Wed
30Thu5:346.06:145.412:060.412:490.26:487:23First Quarter30Thu
31Fri6:325.87:125.212:560.51:430.36:467:24First Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8540433)

Common Questions About Marcus Hook, PA Tides

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What time does the tide turn (slack tide) in Marcus Hook, PA today?

Slack tide in Marcus Hook, PA is approximately 3:08 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 Marcus Hook, PA?

Marcus Hook, PA is currently in a transitional phase. Tonight's moon is 36% 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 Marcus Hook, PA 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 Marcus Hook, PA?

Tide predictions for Marcus Hook, PA 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 Marcus Hook, PA?

Tide data for Marcus Hook, PA is sourced from NOAA Station #8540433. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8540433.

What is the moon phase in Marcus Hook, PA tonight?

Tonight the moon over Marcus Hook, PA is First Quarter (36% illuminated). This places Marcus Hook, PA 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