Tides Today & Tomorrow in Rock Hall, MD

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Rock Hall, MD.
Next low tide : in 1h 51m at 7:19 am (1.0 ft)
Next high tide : 12:11 pm (1.3 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:22 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8573211
Common Questions About Tides

Rock Hall, MD Tides - Jul 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:431.811:251.54:420.55:420.45:428:35Waning Gibbous1Sun
2Mon11:361.65:530.66:240.45:428:35Third Quarter2Mon
3Tue12:301.612:291.47:020.77:040.45:438:34Third Quarter3Tue
4Wed1:311.71:201.38:120.77:440.45:438:34Third Quarter4Wed
5Thu2:291.82:111.29:270.88:270.45:448:34Third Quarter5Thu
6Fri3:281.83:071.110:380.89:170.45:448:34Waning Crescent6Fri
7Sat4:251.94:061.111:340.810:100.55:458:34Waning Crescent7Sat
8Sun5:151.95:021.112:240.75:468:33Waning Crescent8Sun
9Mon6:011.85:531.11:100.75:468:33Waning Crescent9Mon
10Tue6:441.86:431.21:540.75:478:33New Moon10Tue
11Wed7:261.87:331.212:250.62:330.65:478:32New Moon11Wed
12Thu8:041.88:201.21:110.63:080.65:488:32New Moon12Thu
13Fri8:391.89:021.31:570.63:410.65:498:31New Moon13Fri
14Sat9:111.79:411.32:420.74:120.65:508:31Waxing Crescent14Sat
15Sun9:421.710:221.43:260.74:410.65:508:30Waxing Crescent15Sun
16Mon10:111.611:051.54:120.85:070.55:518:30Waxing Crescent16Mon
17Tue10:421.511:531.55:070.95:310.55:528:29Waxing Crescent17Tue
18Wed11:181.46:110.95:540.55:538:29First Quarter18Wed
19Thu12:401.612:021.37:161.06:220.45:538:28First Quarter19Thu
20Fri1:281.712:531.28:261.06:570.45:548:27First Quarter20Fri
21Sat2:181.81:491.19:431.07:410.45:558:27Waxing Gibbous21Sat
22Sun3:151.92:551.110:490.98:380.45:568:26Waxing Gibbous22Sun
23Mon4:152.04:071.111:450.89:510.45:578:25Waxing Gibbous23Mon
24Tue5:132.05:121.212:370.75:578:24Waxing Gibbous24Tue
25Wed6:082.16:131.21:290.75:588:24Full Moon25Wed
26Thu7:032.17:141.312:080.32:170.65:598:23Full Moon26Thu
27Fri7:562.08:131.51:200.43:000.56:008:22Full Moon27Fri
28Sat8:452.09:091.62:290.43:400.56:018:21Waning Gibbous28Sat
29Sun9:311.810:031.73:330.54:200.46:028:20Waning Gibbous29Sun
30Mon10:151.711:021.84:360.64:590.46:038:19Waning Gibbous30Mon
31Tue11:031.55:430.75:400.46:038:18Third Quarter31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8573211)

Common Questions About Rock Hall, MD Tides

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What time does the tide turn (slack tide) in Rock Hall, MD today?

Slack tide in Rock Hall, MD is approximately 9:45 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 Rock Hall, MD?

Rock Hall, MD is currently in a neap phase. Tonight's moon is 46% 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 Rock Hall, MD 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 Rock Hall, MD?

Tide predictions for Rock Hall, MD 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 Rock Hall, MD?

Tide data for Rock Hall, MD is sourced from NOAA Station #8573211. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8573211.

What is the moon phase in Rock Hall, MD tonight?

Tonight the moon over Rock Hall, MD is First Quarter (46% illuminated). This places Rock Hall, MD 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