Tides Today & Tomorrow in Port Tobacco River, MD

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Port Tobacco River, MD.
Next low tide (tomorrow) : 4:40 am (0.4 ft)
Next high tide : in 2h 31m at 10:42 pm (1.7 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8578769
Common Questions About Tides

Port Tobacco River, MD Tides - Nov 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:081.59:251.62:530.23:010.27:346:09First Quarter1Tue
2Wed10:081.510:271.53:470.24:010.37:356:07First Quarter2Wed
3Thu11:101.511:321.54:410.35:020.37:366:06First Quarter3Thu
4Fri12:111.55:350.36:020.37:376:05First Quarter4Fri
5Sat12:341.51:071.56:260.36:580.37:386:04Waxing Gibbous5Sat
6Sun1:291.512:571.66:140.26:510.26:395:03Waxing Gibbous6Sun
7Mon1:181.51:421.67:000.27:410.26:415:02Waxing Gibbous7Mon
8Tue2:051.52:241.77:430.28:270.16:425:01Waxing Gibbous8Tue
9Wed2:481.53:021.78:220.19:090.16:435:00Full Moon9Wed
10Thu3:291.53:371.78:590.19:490.16:444:59Full Moon10Thu
11Fri4:071.54:091.79:340.110:280.26:454:59Full Moon11Fri
12Sat4:431.44:391.710:090.211:070.26:464:58Full Moon12Sat
13Sun5:171.45:121.610:460.211:460.26:474:57Waning Gibbous13Sun
14Mon5:531.45:501.611:270.26:484:56Waning Gibbous14Mon
15Tue6:311.46:331.612:250.212:120.26:494:55Waning Gibbous15Tue
16Wed7:141.47:221.61:040.212:590.26:504:55Waning Gibbous16Wed
17Thu8:011.48:151.61:460.21:510.26:514:54Third Quarter17Thu
18Fri8:531.59:141.52:320.22:490.26:524:53Third Quarter18Fri
19Sat9:521.510:201.53:260.23:570.26:544:53Third Quarter19Sat
20Sun10:561.611:281.54:260.15:070.16:554:52Waning Crescent20Sun
21Mon11:581.65:250.16:140.16:564:51Waning Crescent21Mon
22Tue12:311.512:551.76:240.07:170.06:574:51Waning Crescent22Tue
23Wed1:281.51:501.87:220.08:17-0.16:584:50New Moon23Wed
24Thu2:231.52:421.88:18-0.19:12-0.16:594:50New Moon24Thu
25Fri3:161.53:331.89:12-0.110:04-0.17:004:49New Moon25Fri
26Sat4:081.54:241.710:04-0.110:55-0.17:014:49New Moon26Sat
27Sun5:001.55:151.710:57-0.111:46-0.17:024:49Waxing Crescent27Sun
28Mon5:531.46:091.611:510.07:034:48Waxing Crescent28Mon
29Tue6:481.47:051.512:37-0.112:450.07:044:48Waxing Crescent29Tue
30Wed7:441.48:011.41:250.01:390.07:054:48First Quarter30Wed
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 1:41 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 48% 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 (48% 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