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 5h 07m 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 - Mar 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:010.62:161.17:18-0.39:260.16:375:57Waning Crescent1Tue
2Wed2:050.63:301.08:35-0.310:200.16:365:58Waning Crescent2Wed
3Thu3:100.74:291.09:43-0.311:050.16:345:59Waning Crescent3Thu
4Fri4:080.75:151.010:39-0.311:470.16:336:00Waning Crescent4Fri
5Sat5:010.85:561.011:31-0.36:316:01New Moon5Sat
6Sun5:510.96:341.012:250.012:21-0.26:306:02New Moon6Sun
7Mon6:381.07:091.01:010.01:08-0.26:286:03New Moon7Mon
8Tue7:211.07:430.91:330.01:52-0.16:276:04New Moon8Tue
9Wed7:591.18:160.92:01-0.12:34-0.16:256:05Waxing Crescent9Wed
10Thu8:341.18:490.82:260.03:170.06:246:06Waxing Crescent10Thu
11Fri9:091.19:230.72:470.04:030.16:226:07Waxing Crescent11Fri
12Sat9:471.110:010.73:080.04:540.26:206:08Waxing Crescent12Sat
13Sun10:311.110:450.63:360.05:470.26:196:09First Quarter13Sun
14Mon11:251.111:340.64:150.06:420.36:176:10First Quarter14Mon
15Tue12:211.15:040.07:430.36:166:11First Quarter15Tue
16Wed12:250.61:211.16:010.08:470.36:146:12First Quarter16Wed
17Thu1:200.62:261.17:060.09:390.36:136:13Waxing Gibbous17Thu
18Fri2:240.73:261.18:310.010:220.26:116:14Waxing Gibbous18Fri
19Sat3:260.84:171.29:45-0.111:010.26:096:15Waxing Gibbous19Sat
20Sun4:201.05:041.210:45-0.111:400.16:086:16Waxing Gibbous20Sun
21Mon5:121.15:501.211:46-0.26:066:17Full Moon21Mon
22Tue6:031.36:381.112:180.012:48-0.26:056:18Full Moon22Tue
23Wed6:541.47:241.112:570.01:48-0.26:036:19Full Moon23Wed
24Thu7:441.58:101.01:35-0.12:45-0.16:016:20Waning Gibbous24Thu
25Fri8:341.68:560.92:14-0.13:440.06:006:21Waning Gibbous25Fri
26Sat9:261.59:460.82:56-0.14:450.15:586:22Waning Gibbous26Sat
27Sun10:281.510:460.83:46-0.15:470.25:576:23Third Quarter27Sun
28Mon11:371.411:490.84:490.06:480.35:556:24Third Quarter28Mon
29Tue12:461.35:590.17:520.45:546:25Third Quarter29Tue
30Wed12:510.81:581.27:120.18:550.45:526:26Third Quarter30Wed
31Thu1:560.93:071.28:290.19:460.45:506:27Waning 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 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