Tides Today & Tomorrow in Port Tobacco River, MD

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Port Tobacco River, MD.
Next low tide : in 44m at 9:36 pm (0.2 ft)
Next high tide (tomorrow) : 3:58 am (1.8 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:19 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8578769
Common Questions About Tides

Port Tobacco River, MD Tides - Nov 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:031.511:221.64:530.35:040.37:346:08Third Quarter1Thu
2Fri12:131.55:540.26:130.27:356:07Waning Crescent2Fri
3Sat12:351.61:151.66:520.27:170.17:376:06Waning Crescent3Sat
4Sun1:391.61:111.76:480.17:170.16:385:05Waning Crescent4Sun
5Mon1:351.72:021.87:400.08:120.06:395:04Waning Crescent5Mon
6Tue2:271.72:501.88:290.09:030.06:405:03New Moon6Tue
7Wed3:161.73:351.89:140.09:510.06:415:02New Moon7Wed
8Thu4:021.64:191.89:570.010:380.06:425:01New Moon8Thu
9Fri4:481.65:011.810:380.111:240.16:435:00Waxing Crescent9Fri
10Sat5:331.55:441.711:200.16:444:59Waxing Crescent10Sat
11Sun6:211.56:291.612:090.112:010.26:454:58Waxing Crescent11Sun
12Mon7:091.47:151.612:530.212:420.26:464:57Waxing Crescent12Mon
13Tue7:581.48:031.51:350.21:250.36:474:57First Quarter13Tue
14Wed8:471.38:531.52:160.32:100.36:484:56First Quarter14Wed
15Thu9:381.39:491.42:590.33:030.36:504:55First Quarter15Thu
16Fri10:331.310:491.43:460.34:030.36:514:54First Quarter16Fri
17Sat11:271.411:471.44:360.35:040.36:524:54Waxing Gibbous17Sat
18Sun12:161.45:250.26:010.26:534:53Waxing Gibbous18Sun
19Mon12:381.41:001.56:130.26:560.26:544:52Waxing Gibbous19Mon
20Tue1:241.41:401.67:010.17:490.16:554:52Waxing Gibbous20Tue
21Wed2:081.52:201.67:480.08:390.06:564:51Full Moon21Wed
22Thu2:501.53:001.78:330.09:260.06:574:51Full Moon22Thu
23Fri3:331.53:411.79:180.010:130.06:584:50Full Moon23Fri
24Sat4:161.54:241.710:04-0.111:020.06:594:50Full Moon24Sat
25Sun5:011.55:111.710:540.011:540.07:004:49Waning Gibbous25Sun
26Mon5:511.46:021.711:480.07:014:49Waning Gibbous26Mon
27Tue6:461.46:581.612:460.012:450.07:024:49Waning Gibbous27Tue
28Wed7:441.47:581.51:390.01:440.07:034:48Third Quarter28Wed
29Thu8:441.49:021.52:330.02:470.07:044:48Third Quarter29Thu
30Fri9:471.410:101.43:300.03:530.07:054:48Third Quarter30Fri
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 12:47 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 spring phase. Tonight's moon is 2% 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 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 New Moon (2% illuminated). This places Port Tobacco River, 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