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 2h 33m 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 - Aug 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:051.811:54 AM1.46:490.86:210.46:048:17Third Quarter1Wed
2Thu1:051.912:481.37:540.97:020.56:058:16Third Quarter2Thu
3Fri2:031.91:411.29:050.97:470.56:068:15Third Quarter3Fri
4Sat3:021.82:371.210:170.98:400.66:078:14Waning Crescent4Sat
5Sun4:021.83:391.211:130.99:420.66:088:13Waning Crescent5Sun
6Mon4:561.84:391.211:590.910:380.66:098:12Waning Crescent6Mon
7Tue5:411.85:321.212:410.86:108:11Waning Crescent7Tue
8Wed6:221.86:211.31:200.86:118:10New Moon8Wed
9Thu7:011.87:091.312:100.71:570.76:128:08New Moon9Thu
10Fri7:371.87:541.412:560.72:300.76:138:07New Moon10Fri
11Sat8:101.88:351.51:450.72:590.66:138:06New Moon11Sat
12Sun8:411.79:121.52:330.83:260.66:148:05Waxing Crescent12Sun
13Mon9:101.79:491.63:200.83:500.66:158:03Waxing Crescent13Mon
14Tue9:371.610:271.74:070.94:120.56:168:02Waxing Crescent14Tue
15Wed10:071.511:111.85:010.94:330.56:178:01Waxing Crescent15Wed
16Thu10:421.46:011.05:010.56:188:00First Quarter16Thu
17Fri12:011.811:28 AM1.37:041.05:390.56:197:58First Quarter17Fri
18Sat12:541.912:281.28:091.06:250.56:207:57First Quarter18Sat
19Sun1:501.91:311.29:221.07:190.56:217:56First Quarter19Sun
20Mon2:512.02:401.210:291.08:260.56:227:54Waxing Gibbous20Mon
21Tue3:572.03:541.211:230.99:540.56:237:53Waxing Gibbous21Tue
22Wed4:582.05:011.312:100.86:247:51Waxing Gibbous22Wed
23Thu5:522.06:011.512:560.76:247:50Full Moon23Thu
24Fri6:442.06:591.612:150.51:400.66:257:48Full Moon24Fri
25Sat7:341.97:571.71:230.52:210.66:267:47Full Moon25Sat
26Sun8:201.88:501.92:280.53:000.56:277:46Waning Gibbous26Sun
27Mon9:041.79:421.93:280.63:370.56:287:44Waning Gibbous27Mon
28Tue9:461.610:342.04:270.74:140.56:297:43Waning Gibbous28Tue
29Wed10:301.511:321.95:280.84:530.56:307:41Waning Gibbous29Wed
30Thu11:201.46:300.95:350.56:317:40Third Quarter30Thu
31Fri12:331.912:171.37:301.06:220.66:327:38Third Quarter31Fri
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