Tides Today & Tomorrow in Marcus Hook, PA

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Marcus Hook, PA.
Next low tide : 2:09 pm (0.9 ft)
Next high tide : in 40m at 7:44 am (5.1 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 6:19 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8540433
Common Questions About Tides

Marcus Hook, PA Tides - Mar 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:475.78:285.12:190.03:160.16:355:52Waxing Gibbous1Wed
2Thu8:515.99:265.43:24-0.24:14-0.16:345:53Waxing Gibbous2Thu
3Fri9:506.110:215.84:25-0.35:09-0.36:325:54Waxing Gibbous3Fri
4Sat10:446.311:126.15:22-0.56:01-0.46:315:55Full Moon4Sat
5Sun11:356.46:17-0.66:51-0.56:295:57Full Moon5Sun
6Mon12:026.312:266.47:10-0.67:39-0.56:285:58Full Moon6Mon
7Tue12:516.41:166.38:01-0.68:25-0.46:265:59Waning Gibbous7Tue
8Wed1:406.42:076.18:50-0.59:11-0.36:256:00Waning Gibbous8Wed
9Thu2:296.32:575.89:40-0.39:57-0.16:236:01Waning Gibbous9Thu
10Fri3:186.13:505.610:30-0.210:450.16:216:02Waning Gibbous10Fri
11Sat4:115.94:455.311:220.011:340.26:206:03Third Quarter11Sat
12Sun5:065.75:425.112:150.26:186:04Third Quarter12Sun
13Mon6:045.56:405.012:250.31:090.26:176:05Third Quarter13Mon
14Tue7:025.57:375.01:180.32:030.26:156:06Third Quarter14Tue
15Wed8:005.58:325.12:120.32:570.26:146:07Waning Crescent15Wed
16Thu8:545.59:235.23:060.23:480.16:126:08Waning Crescent16Thu
17Fri9:445.610:095.43:590.14:350.16:106:09Waning Crescent17Fri
18Sat10:295.710:525.54:480.05:210.16:096:10Waning Crescent18Sat
19Sun11:105.711:315.65:36-0.16:030.16:076:11New Moon19Sun
20Mon11:495.66:22-0.16:450.16:066:12New Moon20Mon
21Tue12:075.712:275.67:07-0.17:240.26:046:13New Moon21Tue
22Wed12:415.81:035.57:500.08:020.26:026:14New Moon22Wed
23Thu1:136.01:395.58:340.08:390.26:016:15Waxing Crescent23Thu
24Fri1:466.12:175.49:180.19:180.25:596:16Waxing Crescent24Fri
25Sat2:246.13:005.310:050.210:020.35:576:17Waxing Crescent25Sat
26Sun3:096.13:515.210:570.310:540.35:566:18Waxing Crescent26Sun
27Mon4:036.04:535.211:530.411:540.45:546:19First Quarter27Mon
28Tue5:085.96:005.212:520.45:536:20First Quarter28Tue
29Wed6:195.97:065.312:580.41:520.45:516:21First Quarter29Wed
30Thu7:285.98:095.62:030.32:520.25:496:22Waxing Gibbous30Thu
31Fri8:326.09:085.93:070.23:490.15:486:23Waxing Gibbous31Fri
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 10:56 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 65% 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 (65% 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