Tides Today & Tomorrow in Rock Hall, MD

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Rock Hall, MD.
Next low tide (tomorrow) : 7:19 am (1.0 ft)
Next high tide (tomorrow) : in 3h 33m at 12:28 am (1.8 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:21 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8573211
Common Questions About Tides

Rock Hall, MD Tides - Jan 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:100.53:271.18:17-0.410:360.07:244:52Waning Crescent1Tue
2Wed3:100.44:181.19:13-0.511:280.07:244:53Waning Crescent2Wed
3Thu4:050.55:091.210:07-0.57:244:54New Moon3Thu
4Fri4:580.56:011.312:21-0.111:00 AM-0.67:244:55New Moon4Fri
5Sat5:530.56:531.31:12-0.111:58 AM-0.67:244:55New Moon5Sat
6Sun6:500.67:421.31:59-0.21:02-0.67:244:56New Moon6Sun
7Mon7:450.78:291.22:43-0.32:04-0.67:244:57Waxing Crescent7Mon
8Tue8:390.79:171.13:27-0.33:06-0.57:244:58Waxing Crescent8Tue
9Wed9:370.810:070.94:11-0.34:12-0.47:244:59Waxing Crescent9Wed
10Thu10:430.811:010.84:55-0.45:22-0.37:245:00First Quarter10Thu
11Fri11:490.911:540.65:39-0.46:30-0.27:245:01First Quarter11Fri
12Sat12:521.06:24-0.47:41-0.17:235:02First Quarter12Sat
13Sun12:470.51:561.07:12-0.58:54-0.17:235:03First Quarter13Sun
14Mon1:410.53:011.08:07-0.59:58-0.17:235:04Waxing Gibbous14Mon
15Tue2:380.44:001.09:05-0.510:50-0.17:235:05Waxing Gibbous15Tue
16Wed3:350.54:511.09:57-0.511:38-0.17:225:06Waxing Gibbous16Wed
17Thu4:260.55:371.010:44-0.57:225:07Full Moon17Thu
18Fri5:150.56:201.012:24-0.111:29 AM-0.57:215:09Full Moon18Fri
19Sat6:040.56:591.01:06-0.112:14-0.47:215:10Full Moon19Sat
20Sun6:510.57:340.91:45-0.212:58-0.47:205:11Full Moon20Sun
21Mon7:340.68:070.92:19-0.21:39-0.47:205:12Full Moon21Mon
22Tue8:140.68:380.92:51-0.22:19-0.37:195:13Waning Gibbous22Tue
23Wed8:530.69:090.83:21-0.33:01-0.27:195:14Waning Gibbous23Wed
24Thu9:330.69:410.73:49-0.33:48-0.27:185:15Waning Gibbous24Thu
25Fri10:180.710:160.64:15-0.34:45-0.17:175:16Waning Gibbous25Fri
26Sat11:090.710:580.54:41-0.35:450.07:175:18Third Quarter26Sat
27Sun12:000.85:12-0.46:490.07:165:19Third Quarter27Sun
28Mon12:530.95:50-0.48:020.17:155:20Third Quarter28Mon
29Tue12:360.41:510.96:37-0.49:130.07:145:21Waning Crescent29Tue
30Wed1:340.42:541.07:36-0.510:110.07:145:22Waning Crescent30Wed
31Thu2:410.43:541.08:50-0.511:02-0.17:135:23Waning Crescent31Thu
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 3:53 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 Rock Hall, MD?

Rock Hall, MD 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 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 (36% illuminated). This places Rock Hall, MD 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