38.4533’ N, 77.0533’ W

Port Tobacco River, MD

66°
H -°
L 52°
NW
14mph
High tide
8:45 pm

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 (tomorrow) : 3:06 am (0.5 ft)
Next high tide : in 1h 00m at 8:45 pm (1.7 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 - Apr 1890

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:151.41:271.46:460.37:230.25:526:31Waxing Gibbous1Tue
2Wed1:591.52:131.57:390.28:060.25:516:32Waxing Gibbous2Wed
3Thu2:391.62:551.58:270.18:460.25:496:33Full Moon3Thu
4Fri3:141.63:331.59:120.19:240.15:486:34Full Moon4Fri
5Sat3:481.74:101.59:540.110:000.15:466:35Full Moon5Sat
6Sun4:211.74:481.610:370.110:380.15:456:36Full Moon6Sun
7Mon4:571.75:281.511:220.111:180.15:436:37Waning Gibbous7Mon
8Tue5:371.86:131.512:090.15:426:38Waning Gibbous8Tue
9Wed6:231.87:031.512:020.212:580.25:406:38Waning Gibbous9Wed
10Thu7:131.87:571.512:500.21:500.25:396:39Waning Gibbous10Thu
11Fri8:071.78:561.51:440.22:470.25:376:40Third Quarter11Fri
12Sat9:081.710:031.52:460.33:510.35:366:41Third Quarter12Sat
13Sun10:191.611:141.54:000.34:550.25:346:42Third Quarter13Sun
14Mon11:341.65:130.35:550.25:336:43Waning Crescent14Mon
15Tue12:181.612:411.66:190.26:530.25:316:44Waning Crescent15Tue
16Wed1:151.71:401.67:220.17:460.15:306:45Waning Crescent16Wed
17Thu2:071.72:351.78:180.08:360.15:286:46New Moon17Thu
18Fri2:561.83:251.79:100.09:210.15:276:47New Moon18Fri
19Sat3:421.84:131.79:590.010:040.15:266:48New Moon19Sat
20Sun4:261.84:591.610:460.010:450.25:246:49New Moon20Sun
21Mon5:081.85:461.611:330.111:260.25:236:50Waxing Crescent21Mon
22Tue5:511.86:341.512:190.25:226:51Waxing Crescent22Tue
23Wed6:351.77:241.512:060.31:040.25:206:52Waxing Crescent23Wed
24Thu7:201.78:131.512:460.41:470.35:196:53Waxing Crescent24Thu
25Fri8:061.69:031.51:260.42:300.45:186:54First Quarter25Fri
26Sat8:551.69:561.52:110.53:150.45:166:54First Quarter26Sat
27Sun9:511.510:521.53:050.54:040.45:156:55First Quarter27Sun
28Mon10:541.511:451.54:070.54:540.45:146:56First Quarter28Mon
29Tue11:541.55:090.55:430.45:136:57Waxing Gibbous29Tue
30Wed12:331.612:471.56:080.46:300.45:116:58Waxing Gibbous30Wed
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