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

TIDE TIMES for Sunday, August 23, 2026
The tide is currently rising in St. Marys, St. Marys River, GA.
Next low tide (tomorrow) : 12:57 am (1.0 ft)
Next high tide : in 1h 27m at 6:44 pm (6.2 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:57 am
Moon phase : Waxing Gibbous (81% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Feb 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:565.63:105.19:190.79:340.37:176:02First Quarter1Sun
2Mon3:515.54:075.010:150.810:250.37:176:02First Quarter2Mon
3Tue4:515.55:065.011:090.811:160.37:166:03Waxing Gibbous3Tue
4Wed5:485.76:035.112:020.77:156:04Waxing Gibbous4Wed
5Thu6:405.96:545.312:070.112:530.57:156:05Waxing Gibbous5Thu
6Fri7:276.17:425.412:560.01:400.37:146:06Waxing Gibbous6Fri
7Sat8:116.28:265.51:42-0.22:220.17:136:07Full Moon7Sat
8Sun8:526.39:075.62:25-0.33:010.07:136:08Full Moon8Sun
9Mon9:306.39:465.63:06-0.53:37-0.17:126:08Full Moon9Mon
10Tue10:076.310:235.63:45-0.54:12-0.27:116:09Full Moon10Tue
11Wed10:426.210:585.74:24-0.54:47-0.27:106:10Waning Gibbous11Wed
12Thu11:186.111:365.85:04-0.45:24-0.27:096:11Waning Gibbous12Thu
13Fri11:576.05:49-0.36:05-0.27:086:12Waning Gibbous13Fri
14Sat12:185.812:405.86:410.06:53-0.27:086:13Third Quarter14Sat
15Sun1:075.81:305.67:410.27:51-0.17:076:13Third Quarter15Sun
16Mon2:055.82:295.48:490.48:56-0.17:066:14Third Quarter16Mon
17Tue3:185.73:395.29:570.410:03-0.27:056:15Third Quarter17Tue
18Wed4:445.94:585.311:040.211:09-0.37:046:16Waning Crescent18Wed
19Thu6:016.26:105.512:080.07:036:17Waning Crescent19Thu
20Fri7:046.57:125.912:14-0.61:07-0.47:026:17Waning Crescent20Fri
21Sat7:596.78:086.21:15-0.82:02-0.77:016:18New Moon21Sat
22Sun8:506.89:006.42:11-1.02:52-0.97:006:19New Moon22Sun
23Mon9:376.89:496.53:03-1.13:38-1.06:596:20New Moon23Mon
24Tue10:226.610:356.53:51-1.14:20-0.96:586:20New Moon24Tue
25Wed11:036.411:196.44:37-0.85:01-0.76:576:21Waxing Crescent25Wed
26Thu11:426.15:21-0.55:42-0.46:566:22Waxing Crescent26Thu
27Fri12:006.312:195.86:06-0.16:23-0.16:556:23Waxing Crescent27Fri
28Sat12:416.112:585.56:520.37:060.26:536:23First Quarter28Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8679964)

Common Questions About St. Marys, St. Marys River, GA Tides

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What time does the tide turn (slack tide) in St. Marys, St. Marys River, GA today?

Slack tide in St. Marys, St. Marys River, GA is approximately 9:50 pm — 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 St. Marys, St. Marys River, GA?

St. Marys, St. Marys River, GA is currently in a spring phase. Tonight's moon is 81% 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 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 is the moon phase in St. Marys, St. Marys River, GA tonight?

Tonight the moon over St. Marys, St. Marys River, GA is Waxing Gibbous (81% illuminated). This places St. Marys, St. Marys River, GA in a spring tide cycle, so tidal ranges are near their weekly maximum 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