Tides Today & Tomorrow in Port Tobacco River, MD

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in Port Tobacco River, MD.

Next low tide (tomorrow) : in 4h 07m at 1:28 am (0.2 ft)
Next high tide (tomorrow) : 7:44 am (1.7 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8578769
Common Questions About Tides

Port Tobacco River, MD Tides - Jul 2026

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Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Wed	5:32	1.8	6:11	1.5	11:49	0.3	11:41	0.4	5:48	8:36		1	Wed
2	Thu	6:07	1.7	6:44	1.5			12:23	0.3	5:48	8:36		2	Thu
3	Fri	6:43	1.7	7:17	1.6	12:21	0.4	12:56	0.3	5:49	8:35		3	Fri
4	Sat	7:22	1.7	7:53	1.6	1:03	0.4	1:29	0.3	5:49	8:35		4	Sat
5	Sun	8:06	1.7	8:33	1.7	1:46	0.4	2:04	0.3	5:50	8:35		5	Sun
6	Mon	8:52	1.7	9:17	1.7	2:30	0.4	2:41	0.3	5:50	8:35		6	Mon
7	Tue	9:42	1.6	10:07	1.8	3:20	0.4	3:23	0.3	5:51	8:35		7	Tue
8	Wed	10:38	1.5	11:04	1.8	4:21	0.4	4:13	0.3	5:51	8:34		8	Wed
9	Thu	11:44	1.5			5:34	0.4	5:12	0.3	5:52	8:34		9	Thu
10	Fri	12:08	1.8	12:53	1.5	6:46	0.4	6:18	0.3	5:53	8:34		10	Fri
11	Sat	1:12	1.9	1:57	1.5	7:54	0.3	7:28	0.3	5:53	8:33		11	Sat
12	Sun	2:12	1.9	2:57	1.5	8:56	0.2	8:39	0.3	5:54	8:33		12	Sun
13	Mon	3:10	1.9	3:54	1.6	9:52	0.2	9:43	0.2	5:55	8:32		13	Mon
14	Tue	4:07	1.9	4:48	1.6	10:43	0.1	10:42	0.2	5:55	8:32		14	Tue
15	Wed	5:01	1.9	5:41	1.7	11:32	0.1	11:38	0.2	5:56	8:31		15	Wed
16	Thu	5:55	1.8	6:33	1.7			12:21	0.1	5:57	8:31		16	Thu
17	Fri	6:49	1.8	7:27	1.7	12:33	0.2	1:08	0.1	5:58	8:30		17	Fri
18	Sat	7:44	1.7	8:20	1.7	1:28	0.2	1:55	0.2	5:58	8:30		18	Sat
19	Sun	8:39	1.6	9:13	1.7	2:21	0.3	2:40	0.2	5:59	8:29		19	Sun
20	Mon	9:33	1.6	10:05	1.7	3:14	0.3	3:24	0.3	6:00	8:28		20	Mon
21	Tue	10:28	1.5	10:59	1.7	4:09	0.4	4:10	0.3	6:01	8:28		21	Tue
22	Wed	11:27	1.4	11:56	1.7	5:07	0.4	4:59	0.4	6:02	8:27		22	Wed
23	Thu			12:27	1.4	6:05	0.4	5:51	0.4	6:02	8:26		23	Thu
24	Fri	12:52	1.7	1:24	1.4	7:01	0.4	6:44	0.4	6:03	8:25		24	Fri
25	Sat	1:43	1.7	2:17	1.4	7:53	0.4	7:36	0.4	6:04	8:25		25	Sat
26	Sun	2:31	1.7	3:06	1.5	8:42	0.3	8:28	0.4	6:05	8:24		26	Sun
27	Mon	3:15	1.7	3:51	1.5	9:26	0.3	9:16	0.3	6:06	8:23		27	Mon
28	Tue	3:56	1.7	4:31	1.5	10:05	0.2	10:00	0.3	6:07	8:22		28	Tue
29	Wed	4:34	1.7	5:07	1.6	10:42	0.2	10:41	0.3	6:07	8:21		29	Wed
30	Thu	5:10	1.7	5:39	1.6	11:16	0.2	11:21	0.3	6:08	8:20		30	Thu
31	Fri	5:44	1.7	6:09	1.6	11:49	0.2			6:09	8:19		31	Fri
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (8578769)

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When is the lowest tide this week in Port Tobacco River, MD?

The lowest tide this week in Port Tobacco River, MD is 0.2 ft on Saturday, Jul 18 at 1:55 pm.

When is the highest tide this week in Port Tobacco River, MD?

The highest tide this week in Port Tobacco River, MD is 1.7 ft on Saturday, Jul 18 at 8:20 pm — worth noting for launching your boat and being alert for possible high tide flooding.

What time does the tide turn (slack tide) in Port Tobacco River, MD today?

Slack tide in Port Tobacco River, MD is approximately 4:36 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 spring phase. Tonight's moon is 14% 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 maximum.

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 time is high tide in Port Tobacco River, MD today?

High tides in Port Tobacco River, MD today: 6:49 am (1.8 ft), 7:27 pm (1.7 ft).

What time is low tide in Port Tobacco River, MD today?

Low tides in Port Tobacco River, MD today: 12:33 am (0.2 ft), 1:08 pm (0.1 ft).

What is the tidal range in Port Tobacco River, MD today?

Today's tidal range in Port Tobacco River, MD is 1.6 ft — the difference between the day's highest and lowest water level. This month's average daily range is about 1.5 ft, so today's swing is typical.

What is the moon phase in Port Tobacco River, MD tonight?

Tonight the moon over Port Tobacco River, MD is Waxing Crescent (14% illuminated). This places Port Tobacco River, MD in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

What type of tides does Port Tobacco River, MD have — semi-diurnal, diurnal, or mixed?

Port Tobacco River, MD has semi-diurnal tides — two high tides and two low tides roughly every 24 hours and 50 minutes, with similar heights.

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

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