Tides Today & Tomorrow in St. Marys, St. Marys River, GA

TIDE TIMES for Wednesday, September 16, 2026
The tide is currently falling in St. Marys, St. Marys River, GA.

Next low tide : in 35m at 6:54 am (1.0 ft)
Next high tide : 1:38 pm (6.2 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 7:11 am
Moon phase : Waxing Crescent (30% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Sep 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	Tue	12:08	6.0	12:42	6.5	6:20	0.3	6:59	0.8	7:02	7:49		1	Tue
2	Wed	12:58	5.8	1:38	6.5	7:09	0.3	8:01	1.1	7:03	7:48		2	Wed
3	Thu	1:54	5.6	2:40	6.5	8:08	0.4	9:11	1.2	7:03	7:47		3	Thu
4	Fri	2:57	5.4	3:50	6.6	9:14	0.5	10:20	1.2	7:04	7:45		4	Fri
5	Sat	4:08	5.4	5:03	6.7	10:23	0.4	11:24	1.0	7:05	7:44		5	Sat
6	Sun	5:23	5.6	6:12	6.9	11:28	0.3			7:05	7:43		6	Sun
7	Mon	6:31	5.9	7:11	7.0	12:24	0.7	12:30	0.1	7:06	7:42		7	Mon
8	Tue	7:30	6.3	8:02	7.1	1:19	0.4	1:29	-0.1	7:06	7:40		8	Tue
9	Wed	8:23	6.7	8:49	7.1	2:10	0.2	2:25	-0.2	7:07	7:39		9	Wed
10	Thu	9:11	6.9	9:32	6.9	2:57	0.0	3:17	-0.1	7:07	7:38		10	Thu
11	Fri	9:58	7.0	10:13	6.7	3:41	0.0	4:05	0.0	7:08	7:37		11	Fri
12	Sat	10:43	6.9	10:53	6.4	4:22	0.1	4:51	0.2	7:08	7:35		12	Sat
13	Sun	11:27	6.8	11:33	6.1	5:01	0.3	5:35	0.6	7:09	7:34		13	Sun
14	Mon			12:11	6.6	5:38	0.5	6:18	0.9	7:10	7:33		14	Mon
15	Tue	12:14	5.9	12:54	6.4	6:15	0.8	7:04	1.3	7:10	7:31		15	Tue
16	Wed	12:58	5.7	1:38	6.2	6:54	1.0	7:55	1.6	7:11	7:30		16	Wed
17	Thu	1:44	5.6	2:25	6.1	7:38	1.3	8:50	1.7	7:11	7:29		17	Thu
18	Fri	2:34	5.5	3:17	6.0	8:31	1.4	9:48	1.8	7:12	7:28		18	Fri
19	Sat	3:28	5.4	4:13	6.0	9:30	1.5	10:42	1.6	7:12	7:26		19	Sat
20	Sun	4:27	5.5	5:12	6.1	10:29	1.4	11:33	1.5	7:13	7:25		20	Sun
21	Mon	5:26	5.7	6:07	6.3	11:25	1.2			7:14	7:24		21	Mon
22	Tue	6:21	5.9	6:56	6.5	12:20	1.2	12:17	1.0	7:14	7:23		22	Tue
23	Wed	7:10	6.2	7:40	6.7	1:05	1.0	1:07	0.8	7:15	7:21		23	Wed
24	Thu	7:54	6.5	8:20	6.8	1:48	0.8	1:56	0.6	7:15	7:20		24	Thu
25	Fri	8:35	6.7	8:58	6.7	2:29	0.6	2:43	0.4	7:16	7:19		25	Fri
26	Sat	9:15	6.9	9:35	6.6	3:09	0.4	3:30	0.4	7:16	7:17		26	Sat
27	Sun	9:56	7.0	10:15	6.5	3:49	0.3	4:16	0.4	7:17	7:16		27	Sun
28	Mon	10:41	7.1	10:59	6.3	4:30	0.2	5:04	0.5	7:18	7:15		28	Mon
29	Tue	11:32	7.1	11:50	6.0	5:12	0.2	5:54	0.7	7:18	7:14		29	Tue
30	Wed			12:29	7.0	5:59	0.3	6:50	1.0	7:19	7:12		30	Wed
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (8679964)

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When is the lowest tide this week in St. Marys, St. Marys River, GA?

The lowest tide this week in St. Marys, St. Marys River, GA is 1.0 ft on Wednesday, Sep 23 at 1:05 am.

When is the highest tide this week in St. Marys, St. Marys River, GA?

The highest tide this week in St. Marys, St. Marys River, GA is 6.5 ft on Tuesday, Sep 22 at 6:56 pm — worth noting for launching your boat and being alert for possible high tide flooding.

Is this week a spring tide or neap tide in St. Marys, St. Marys River, GA?

St. Marys, St. Marys River, GA is currently in a transitional phase. Tonight's moon is 30% 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 St. Marys, St. Marys River, GA 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 St. Marys, St. Marys River, GA?

Tide predictions for St. Marys, St. Marys River, GA 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 St. Marys, St. Marys River, GA?

Tide data for St. Marys, St. Marys River, GA is sourced from NOAA Station #8679964. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8679964.

What time is high tide in St. Marys, St. Marys River, GA today?

High tides in St. Marys, St. Marys River, GA today: 12:58 am (5.7 ft), 1:38 pm (6.2 ft). The 1:38 pm high of 6.2 ft is notably higher than the other — known as diurnal inequality, common on coasts influenced by lunar declination.

What time is low tide in St. Marys, St. Marys River, GA today?

Low tides in St. Marys, St. Marys River, GA today: 6:54 am (1.0 ft), 7:55 pm (1.6 ft).

What is the tidal range in St. Marys, St. Marys River, GA today?

Today's tidal range in St. Marys, St. Marys River, GA is 5.2 ft — the difference between the day's highest and lowest water level. This month's average daily range is about 6.1 ft, so today's swing is below-average.

What is the moon phase in St. Marys, St. Marys River, GA tonight?

Tonight the moon over St. Marys, St. Marys River, GA is Waxing Crescent (30% illuminated). This places St. Marys, St. Marys River, GA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

What type of tides does St. Marys, St. Marys River, GA have — semi-diurnal, diurnal, or mixed?

St. Marys, St. Marys River, GA 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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