38.4533’ N, 77.0533’ W

Port Tobacco River, MD

64°
H 82°
L 53°
SSW
7mph
High tide
8:44 am

Tides Today & Tomorrow in Port Tobacco River, MD

TIDE TIMES for Friday, October 16, 2026
The tide is currently rising in Port Tobacco River, MD.
Next low tide : 1:58 pm (0.4 ft)
Next high tide : in 1h 20m at 8:44 am (1.4 ft)
Sunset today : 6:29 pm
Sunrise tomorrow : 7:18 am
Moon phase : First Quarter (31% illuminated)
Tide Station Location : Station #8578769
Common Questions About Tides

Port Tobacco River, MD Tides - May 1891

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:051.79:561.62:420.43:380.35:106:59Third Quarter1Fri
2Sat10:141.711:041.63:550.44:400.35:097:00Third Quarter2Sat
3Sun11:281.75:070.35:390.35:087:01Waning Crescent3Sun
4Mon12:061.712:341.76:130.36:360.25:077:02Waning Crescent4Mon
5Tue1:031.81:331.77:160.27:300.25:067:03Waning Crescent5Tue
6Wed1:551.92:271.78:140.18:220.25:057:04New Moon6Wed
7Thu2:452.03:191.79:080.19:100.25:047:05New Moon7Thu
8Fri3:332.04:081.79:590.09:560.25:037:05New Moon8Fri
9Sat4:192.04:571.710:490.110:420.25:027:06New Moon9Sat
10Sun5:051.95:471.611:390.111:280.35:017:07Waxing Crescent10Sun
11Mon5:521.96:401.612:280.25:007:08Waxing Crescent11Mon
12Tue6:411.87:341.512:160.41:150.34:597:09Waxing Crescent12Tue
13Wed7:321.78:271.51:050.42:020.34:587:10Waxing Crescent13Wed
14Thu8:251.69:201.51:540.52:470.44:577:11First Quarter14Thu
15Fri9:211.610:161.52:460.53:340.44:567:12First Quarter15Fri
16Sat10:221.511:111.63:440.54:220.44:557:13First Quarter16Sat
17Sun11:241.54:440.55:100.44:547:14First Quarter17Sun
18Mon12:031.612:191.55:400.55:550.44:537:14Waxing Gibbous18Mon
19Tue12:491.71:091.56:350.46:400.44:537:15Waxing Gibbous19Tue
20Wed1:311.71:541.57:260.47:240.44:527:16Waxing Gibbous20Wed
21Thu2:101.82:361.68:150.38:070.34:517:17Waxing Gibbous21Thu
22Fri2:461.83:161.69:010.38:480.34:517:18Full Moon22Fri
23Sat3:211.83:541.69:440.39:290.34:507:19Full Moon23Sat
24Sun3:561.94:331.510:280.310:110.34:497:19Full Moon24Sun
25Mon4:341.95:141.511:120.310:570.44:497:20Waning Gibbous25Mon
26Tue5:161.96:001.611:590.311:480.44:487:21Waning Gibbous26Tue
27Wed6:041.96:511.612:460.34:477:22Waning Gibbous27Wed
28Thu6:571.87:451.612:430.41:340.34:477:23Waning Gibbous28Thu
29Fri7:551.88:411.61:400.42:240.34:467:23Third Quarter29Fri
30Sat8:561.79:411.72:420.43:190.34:467:24Third Quarter30Sat
31Sun10:041.710:451.73:490.44:160.34:467:25Third Quarter31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8578769)

Common Questions About Port Tobacco River, MD Tides

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Is this week a spring tide or neap tide in Port Tobacco River, MD?

Port Tobacco River, MD is currently in a transitional phase. Tonight's moon is 31% 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 shifting between spring and neap.

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 (31% illuminated). This places Port Tobacco River, MD in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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