Tides Today & Tomorrow in Philadelphia, USCG Station, PA

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Philadelphia, USCG Station, PA.
Next low tide (tomorrow) : 4:19 am (1.0 ft)
Next high tide : in 2h 36m at 9:28 pm (6.6 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 6:18 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8545240
Common Questions About Tides

Philadelphia, USCG Station, PA Tides - Nov 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:226.82:457.49:140.19:500.07:295:58Full Moon1Wed
2Thu3:126.73:347.310:020.110:410.17:305:57Waning Gibbous2Thu
3Fri4:036.44:237.210:500.311:320.27:325:56Waning Gibbous3Fri
4Sat4:556.25:147.011:380.47:335:55Waning Gibbous4Sat
5Sun5:496.06:066.812:220.312:260.57:345:54Waning Gibbous5Sun
6Mon6:435.87:016.61:130.41:170.67:355:53Third Quarter6Mon
7Tue7:395.87:576.42:040.42:080.67:365:52Third Quarter7Tue
8Wed8:345.88:536.32:550.43:020.77:375:51Third Quarter8Wed
9Thu9:305.99:486.33:460.43:570.67:385:50Third Quarter9Thu
10Fri10:236.010:426.34:370.34:510.57:405:49Waning Crescent10Fri
11Sat11:136.211:326.35:260.35:440.57:415:48Waning Crescent11Sat
12Sun12:016.46:130.26:350.47:425:47Waning Crescent12Sun
13Mon12:196.212:456.56:580.27:250.37:435:46Waning Crescent13Mon
14Tue1:046.21:266.67:410.28:120.37:445:45New Moon14Tue
15Wed1:476.02:056.68:230.38:580.37:455:44New Moon15Wed
16Thu2:285.92:426.69:040.49:430.47:465:43New Moon16Thu
17Fri3:095.73:186.69:450.510:280.47:485:43New Moon17Fri
18Sat3:495.63:546.610:260.511:130.57:495:42Waxing Crescent18Sat
19Sun4:315.54:336.611:100.57:505:41Waxing Crescent19Sun
20Mon5:165.55:196.512:000.511:57 AM0.57:515:41Waxing Crescent20Mon
21Tue6:075.56:146.512:490.512:490.57:525:40First Quarter21Tue
22Wed7:045.57:176.41:420.41:470.57:535:39First Quarter22Wed
23Thu8:045.68:226.32:360.42:480.57:545:39First Quarter23Thu
24Fri9:055.89:266.33:320.33:510.47:555:38First Quarter24Fri
25Sat10:056.110:276.34:290.14:530.37:565:38Waxing Gibbous25Sat
26Sun11:016.511:246.45:240.05:530.17:585:38Waxing Gibbous26Sun
27Mon11:556.86:18-0.16:51-0.17:595:37Waxing Gibbous27Mon
28Tue12:196.412:467.07:10-0.27:47-0.28:005:37Full Moon28Tue
29Wed1:116.41:357.18:00-0.28:40-0.28:015:36Full Moon29Wed
30Thu2:026.32:237.18:49-0.19:31-0.28:025:36Full Moon30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8545240)

Common Questions About Philadelphia, USCG Station, PA Tides

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What time does the tide turn (slack tide) in Philadelphia, USCG Station, PA today?

Slack tide in Philadelphia, USCG Station, PA is approximately 12:53 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 Philadelphia, USCG Station, PA?

Philadelphia, USCG Station, 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 Philadelphia, USCG Station, 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 Philadelphia, USCG Station, PA?

Tide predictions for Philadelphia, USCG Station, 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 Philadelphia, USCG Station, PA?

Tide data for Philadelphia, USCG Station, PA is sourced from NOAA Station #8545240. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8545240.

What is the moon phase in Philadelphia, USCG Station, PA tonight?

Tonight the moon over Philadelphia, USCG Station, PA is First Quarter (65% illuminated). This places Philadelphia, USCG Station, 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