Tides Today & Tomorrow in Rock Hall, MD

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Rock Hall, MD.
Next low tide : in 3h 25m at 8:21 am (1.0 ft)
Next high tide : 1:05 pm (1.2 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:23 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8573211
Common Questions About Tides

Rock Hall, MD Tides - Feb 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:150.42:281.07:30-0.59:43-0.17:125:24Waning Crescent1Mon
2Tue2:170.43:371.08:39-0.510:41-0.17:115:25Waning Crescent2Tue
3Wed3:190.44:371.09:44-0.511:32-0.17:105:27Waning Crescent3Wed
4Thu4:160.55:311.010:40-0.67:095:28Waning Crescent4Thu
5Fri5:090.56:201.012:21-0.111:34 AM-0.67:085:29New Moon5Fri
6Sat6:030.67:021.01:05-0.112:27-0.57:075:30New Moon6Sat
7Sun6:540.77:390.91:44-0.21:18-0.57:065:31New Moon7Sun
8Mon7:420.78:130.92:18-0.22:03-0.47:055:32Waxing Crescent8Mon
9Tue8:250.78:460.82:51-0.22:47-0.37:045:34Waxing Crescent9Tue
10Wed9:070.79:210.73:21-0.23:31-0.27:035:35Waxing Crescent10Wed
11Thu9:510.89:580.73:48-0.24:22-0.17:025:36Waxing Crescent11Thu
12Fri10:380.810:400.64:14-0.25:160.07:015:37First Quarter12Fri
13Sat11:270.811:250.54:40-0.26:130.07:005:38First Quarter13Sat
14Sun12:170.85:10-0.27:140.16:595:39First Quarter14Sun
15Mon12:100.41:090.85:49-0.28:250.16:575:40First Quarter15Mon
16Tue12:570.42:090.96:35-0.39:300.16:565:42First Quarter16Tue
17Wed1:500.43:110.97:36-0.310:210.16:555:43Waxing Gibbous17Wed
18Thu2:510.44:061.08:51-0.311:050.16:545:44Waxing Gibbous18Thu
19Fri3:470.54:531.19:54-0.411:480.06:525:45Waxing Gibbous19Fri
20Sat4:390.65:391.110:50-0.46:515:46Full Moon20Sat
21Sun5:310.76:241.112:30-0.111:48 AM-0.56:505:47Full Moon21Sun
22Mon6:240.87:071.11:10-0.112:49-0.56:485:48Full Moon22Mon
23Tue7:150.97:501.01:47-0.21:48-0.46:475:49Full Moon23Tue
24Wed8:041.18:320.92:23-0.32:46-0.46:465:50Waning Gibbous24Wed
25Thu8:541.19:170.82:58-0.33:47-0.36:445:52Waning Gibbous25Thu
26Fri9:481.210:060.73:36-0.34:53-0.26:435:53Waning Gibbous26Fri
27Sat10:501.211:030.64:19-0.35:59-0.16:415:54Third Quarter27Sat
28Sun11:561.25:11-0.37:050.06:405:55Third Quarter28Sun
29Mon12:020.61:031.16:10-0.38:180.16:395:56Third Quarter29Mon
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 10:43 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 Rock Hall, MD?

Rock Hall, MD is currently in a neap phase. Tonight's moon is 55% 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 (55% 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