38.4533’ N, 77.0533’ W

Port Tobacco River, MD

65°
H 66°
L 48°
N
8mph
Low tide
4:41 pm

Tides Today & Tomorrow in Port Tobacco River, MD

TIDE TIMES for Monday, October 19, 2026
The tide is currently falling in Port Tobacco River, MD.
Next low tide : in 3h 19m at 4:41 pm (0.5 ft)
Next high tide : 11:34 pm (1.5 ft)
Sunset today : 6:24 pm
Sunrise tomorrow : 7:21 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #8578769
Common Questions About Tides

Port Tobacco River, MD Tides - Jul 1886

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:471.93:271.79:240.29:170.24:477:36New Moon1Thu
2Fri3:352.04:161.710:130.110:110.24:487:35New Moon2Fri
3Sat4:251.95:051.711:020.111:060.24:487:35Waxing Crescent3Sat
4Sun5:161.95:581.711:520.14:497:35Waxing Crescent4Sun
5Mon6:111.96:541.812:030.212:420.14:497:35Waxing Crescent5Mon
6Tue7:091.87:501.81:000.21:330.14:507:35Waxing Crescent6Tue
7Wed8:081.78:481.81:580.22:240.14:507:34First Quarter7Wed
8Thu9:091.79:471.82:580.23:180.24:517:34First Quarter8Thu
9Fri10:141.610:491.84:000.34:150.24:527:34First Quarter9Fri
10Sat11:191.611:491.85:020.35:110.24:527:33Waxing Gibbous10Sat
11Sun12:191.66:020.26:070.24:537:33Waxing Gibbous11Sun
12Mon12:441.81:151.66:580.27:010.24:547:33Waxing Gibbous12Mon
13Tue1:351.82:061.67:520.27:530.24:547:32Waxing Gibbous13Tue
14Wed2:221.82:551.68:400.18:400.24:557:32Full Moon14Wed
15Thu3:071.83:401.69:240.19:240.24:567:31Full Moon15Thu
16Fri3:491.84:221.610:050.110:050.34:567:31Full Moon16Fri
17Sat4:291.85:031.610:430.210:450.34:577:30Full Moon17Sat
18Sun5:081.85:421.611:190.211:240.34:587:29Waning Gibbous18Sun
19Mon5:461.76:191.611:530.24:597:29Waning Gibbous19Mon
20Tue6:251.76:551.612:030.412:240.34:597:28Waning Gibbous20Tue
21Wed7:041.67:301.612:420.412:540.35:007:27Waning Gibbous21Wed
22Thu7:451.68:071.61:210.41:270.35:017:27Third Quarter22Thu
23Fri8:281.68:491.72:050.42:050.35:027:26Third Quarter23Fri
24Sat9:171.59:381.72:560.52:510.35:037:25Third Quarter24Sat
25Sun10:171.510:371.74:010.53:460.35:047:24Third Quarter25Sun
26Mon11:241.511:401.75:090.44:490.35:047:24Waning Crescent26Mon
27Tue12:251.56:130.45:540.35:057:23Waning Crescent27Tue
28Wed12:381.81:211.67:130.37:000.25:067:22Waning Crescent28Wed
29Thu1:331.92:141.68:090.28:030.25:077:21New Moon29Thu
30Fri2:271.93:061.79:010.19:010.15:087:20New Moon30Fri
31Sat3:191.93:561.89:500.19:560.15:097:19New Moon31Sat
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 neap phase. Tonight's moon is 59% 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 (59% 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