38.4533’ N, 77.0533’ W

Port Tobacco River, MD

65°
H -°
L 46°
N
5mph
Low tide
5:46 pm

Tides Today & Tomorrow in Port Tobacco River, MD

TIDE TIMES for Tuesday, October 20, 2026
The tide is currently falling in Port Tobacco River, MD.
Next low tide : in 16m at 5:46 pm (0.5 ft)
Next high tide (tomorrow) : 12:36 am (1.5 ft)
Sunset today : 6:23 pm
Sunrise tomorrow : 7:22 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #8578769
Common Questions About Tides

Port Tobacco River, MD Tides - Jun 1884

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:141.610:551.73:520.44:160.34:457:26First Quarter1Sun
2Mon11:151.611:501.74:510.45:080.34:457:27Waxing Gibbous2Mon
3Tue12:131.65:480.35:570.34:447:27Waxing Gibbous3Tue
4Wed12:411.81:051.66:420.36:460.34:447:28Waxing Gibbous4Wed
5Thu1:281.81:541.67:330.37:320.34:447:28Waxing Gibbous5Thu
6Fri2:121.82:401.68:200.28:160.34:437:29Waxing Gibbous6Fri
7Sat2:531.83:231.69:030.28:560.34:437:30Full Moon7Sat
8Sun3:311.84:041.69:440.29:350.34:437:30Full Moon8Sun
9Mon4:061.84:421.610:220.210:120.34:437:31Full Moon9Mon
10Tue4:391.85:171.610:590.210:510.44:437:31Full Moon10Tue
11Wed5:121.85:511.611:350.311:310.44:437:32Waning Gibbous11Wed
12Thu5:481.86:271.612:110.34:437:32Waning Gibbous12Thu
13Fri6:281.87:051.612:130.412:460.34:437:33Waning Gibbous13Fri
14Sat7:131.87:471.712:570.41:230.34:437:33Waning Gibbous14Sat
15Sun8:021.78:341.71:440.42:030.34:437:33Third Quarter15Sun
16Mon8:561.79:271.82:380.42:500.34:437:34Third Quarter16Mon
17Tue9:571.610:281.83:420.43:460.34:437:34Third Quarter17Tue
18Wed11:041.611:311.84:530.44:480.34:437:34Waning Crescent18Wed
19Thu12:101.66:010.35:520.24:437:35Waning Crescent19Thu
20Fri12:311.91:111.77:050.26:570.24:437:35Waning Crescent20Fri
21Sat1:282.02:081.78:060.28:000.24:447:35New Moon21Sat
22Sun2:232.03:041.79:010.18:590.14:447:35New Moon22Sun
23Mon3:172.03:571.79:530.09:540.14:447:35New Moon23Mon
24Tue4:102.04:501.710:440.010:490.14:457:35New Moon24Tue
25Wed5:021.95:441.711:350.111:440.24:457:36Waxing Crescent25Wed
26Thu5:561.86:401.712:250.14:457:36Waxing Crescent26Thu
27Fri6:521.87:351.712:390.21:130.14:467:36Waxing Crescent27Fri
28Sat7:491.78:291.71:330.32:000.24:467:36First Quarter28Sat
29Sun8:451.69:231.72:270.32:470.24:467:36First Quarter29Sun
30Mon9:421.610:191.73:220.43:360.34:477:36First Quarter30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8578769)

Common Questions About Port Tobacco River, MD Tides

Collapse All
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 69% 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 (69% 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