Tides Today & Tomorrow in Port Tobacco River, MD

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Port Tobacco River, MD.
Next low tide : in 0m at 3:35 am (0.4 ft)
Next high tide : 9:52 am (1.5 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 6:26 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8578769
Common Questions About Tides

Port Tobacco River, MD Tides - Oct 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:481.57:591.81:460.51:250.47:046:50Waning Gibbous1Sun
2Mon8:391.58:511.82:370.52:160.47:056:49Third Quarter2Mon
3Tue9:371.59:511.73:350.53:160.47:066:47Third Quarter3Tue
4Wed10:441.511:021.74:410.54:320.57:076:46Third Quarter4Wed
5Thu11:591.55:470.55:520.47:086:44Waning Crescent5Thu
6Fri12:211.71:071.66:480.47:020.37:096:43Waning Crescent6Fri
7Sat1:311.72:041.77:440.38:060.27:106:41Waning Crescent7Sat
8Sun2:301.82:571.88:360.29:040.17:116:40Waning Crescent8Sun
9Mon3:231.83:461.99:260.19:580.17:126:38New Moon9Mon
10Tue4:131.84:342.010:120.110:490.17:126:37New Moon10Tue
11Wed5:011.85:192.010:560.111:390.17:136:35New Moon11Wed
12Thu5:481.76:051.911:400.27:146:34Waxing Crescent12Thu
13Fri6:361.76:521.912:290.212:250.27:156:32Waxing Crescent13Fri
14Sat7:281.67:411.81:200.21:120.37:166:31Waxing Crescent14Sat
15Sun8:221.58:331.72:100.32:000.47:176:29Waxing Crescent15Sun
16Mon9:171.59:271.63:000.42:500.47:186:28First Quarter16Mon
17Tue10:141.410:251.63:510.43:450.57:196:27First Quarter17Tue
18Wed11:141.411:291.54:430.54:450.57:206:25First Quarter18Wed
19Thu12:151.55:340.55:460.57:216:24First Quarter19Thu
20Fri12:321.51:091.56:230.46:430.47:226:22Waxing Gibbous20Fri
21Sat1:271.51:561.67:090.47:360.47:236:21Waxing Gibbous21Sat
22Sun2:151.62:381.67:520.38:260.37:246:20Waxing Gibbous22Sun
23Mon2:581.63:171.78:330.39:120.37:256:19Waxing Gibbous23Mon
24Tue3:381.63:511.79:120.29:560.37:266:17Full Moon24Tue
25Wed4:161.64:231.89:480.210:380.37:276:16Full Moon25Wed
26Thu4:511.64:551.810:240.211:190.37:286:15Full Moon26Thu
27Fri5:261.55:291.811:010.27:306:14Full Moon27Fri
28Sat6:031.56:081.812:030.311:41 AM0.27:316:12Waning Gibbous28Sat
29Sun6:461.56:521.812:490.312:270.37:326:11Waning Gibbous29Sun
30Mon7:341.57:431.71:380.31:190.37:336:10Waning Gibbous30Mon
31Tue8:291.58:391.72:280.32:170.37:346:09Third Quarter31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8578769)

Common Questions About Port Tobacco River, MD Tides

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What time does the tide turn (slack tide) in Port Tobacco River, MD today?

Slack tide in Port Tobacco River, MD is approximately 6:43 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 Port Tobacco River, MD?

Port Tobacco River, 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 Port Tobacco River, 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 Port Tobacco River, MD?

Tide predictions for Port Tobacco River, 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 Port Tobacco River, MD?

Tide data for Port Tobacco River, MD is sourced from NOAA Station #8578769. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8578769.

What is the moon phase in Port Tobacco River, MD tonight?

Tonight the moon over Port Tobacco River, MD is First Quarter (46% illuminated). This places Port Tobacco River, 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