Tides Today & Tomorrow in Rock Hall, MD

TIDE TIMES for Saturday, August 15, 2026
The tide is currently rising in Rock Hall, MD.
Next low tide (tomorrow) : 4:21 am (0.7 ft)
Next high tide : in 5h 07m at 9:46 pm (1.8 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8573211
Common Questions About Tides

Rock Hall, MD Tides - Dec 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:300.98:151.52:290.11:46-0.27:054:42Waxing Crescent1Sun
2Mon8:210.99:021.43:180.12:38-0.27:064:42Waxing Crescent2Mon
3Tue9:130.99:521.34:080.13:31-0.17:074:42Waxing Crescent3Tue
4Wed10:130.810:461.24:580.14:290.07:084:42First Quarter4Wed
5Thu11:180.811:381.15:450.15:300.17:094:42First Quarter5Thu
6Fri12:200.96:300.16:280.27:104:42First Quarter6Fri
7Sat12:271.01:170.97:130.07:310.37:114:42First Quarter7Sat
8Sun1:150.92:140.97:570.08:370.37:114:42First Quarter8Sun
9Mon2:040.83:081.08:400.09:370.27:124:42Waxing Gibbous9Mon
10Tue2:540.83:541.19:20-0.110:280.27:134:42Waxing Gibbous10Tue
11Wed3:410.74:351.19:55-0.111:150.17:144:42Waxing Gibbous11Wed
12Thu4:240.75:151.210:29-0.27:154:42Waxing Gibbous12Thu
13Fri5:050.75:541.212:030.111:03 AM-0.27:154:42Full Moon13Fri
14Sat5:460.76:341.212:510.111:39 AM-0.37:164:43Full Moon14Sat
15Sun6:290.77:131.31:360.012:21-0.37:174:43Full Moon15Sun
16Mon7:130.77:521.32:190.01:06-0.37:184:43Full Moon16Mon
17Tue7:560.78:301.23:000.01:52-0.37:184:44Waning Gibbous17Tue
18Wed8:410.79:121.23:43-0.12:39-0.27:194:44Waning Gibbous18Wed
19Thu9:320.79:591.14:27-0.13:35-0.27:194:44Waning Gibbous19Thu
20Fri10:330.810:531.05:12-0.24:45-0.17:204:45Third Quarter20Fri
21Sat11:370.811:491.05:56-0.25:580.07:204:45Third Quarter21Sat
22Sun12:370.96:40-0.37:110.07:214:46Third Quarter22Sun
23Mon12:440.91:381.07:28-0.38:280.07:214:46Third Quarter23Mon
24Tue1:410.82:401.18:21-0.49:37-0.17:224:47Waning Crescent24Tue
25Wed2:410.73:401.29:15-0.510:37-0.17:224:47Waning Crescent25Wed
26Thu3:390.74:351.310:05-0.511:33-0.17:234:48Waning Crescent26Thu
27Fri4:330.75:291.310:55-0.67:234:49New Moon27Fri
28Sat5:260.76:211.312:28-0.211:46 AM-0.67:234:49New Moon28Sat
29Sun6:190.77:111.21:20-0.212:40-0.57:234:50New Moon29Sun
30Mon7:120.77:561.22:07-0.21:33-0.57:244:51Waxing Crescent30Mon
31Tue8:020.78:411.12:52-0.22:22-0.47:244:52Waxing Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8573211)

Common Questions About Rock Hall, MD Tides

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

Slack tide in Rock Hall, MD is approximately 1:03 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 spring phase. Tonight's moon is 11% 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 maximum.

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 Waxing Crescent (11% illuminated). This places Rock Hall, MD in a spring tide cycle, so tidal ranges are near their weekly maximum 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