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

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in St. Marys, St. Marys River, GA.
Next low tide : 7:12 pm (0.6 ft)
Next high tide : in 2h 07m at 1:04 pm (5.9 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:45 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Sep 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:536.39:196.72:520.42:580.17:027:50Full Moon1Thu
2Fri9:346.59:566.63:320.23:430.17:027:49Full Moon2Fri
3Sat10:156.610:366.44:110.14:280.17:037:47Full Moon3Sat
4Sun10:596.611:196.34:510.05:150.27:037:46Waning Gibbous4Sun
5Mon11:496.75:320.06:040.47:047:45Waning Gibbous5Mon
6Tue12:076.112:436.76:180.16:590.77:057:44Waning Gibbous6Tue
7Wed1:015.91:426.77:100.28:010.97:057:43Third Quarter7Wed
8Thu1:595.82:446.78:100.39:091.07:067:41Third Quarter8Thu
9Fri3:035.73:526.79:170.410:150.97:067:40Third Quarter9Fri
10Sat4:135.75:016.810:230.311:180.77:077:39Third Quarter10Sat
11Sun5:245.96:066.911:270.27:077:38Waning Crescent11Sun
12Mon6:286.37:037.112:150.512:270.07:087:36Waning Crescent12Mon
13Tue7:256.67:537.11:090.31:25-0.17:097:35Waning Crescent13Tue
14Wed8:166.98:387.11:590.12:19-0.17:097:34New Moon14Wed
15Thu9:037.09:206.92:460.03:09-0.17:107:32New Moon15Thu
16Fri9:477.110:006.73:300.03:560.17:107:31New Moon16Fri
17Sat10:317.010:396.44:100.14:410.37:117:30New Moon17Sat
18Sun11:146.811:196.24:490.35:240.67:117:29Waxing Crescent18Sun
19Mon11:576.65:250.56:060.97:127:27Waxing Crescent19Mon
20Tue12:016.012:406.46:020.86:501.37:127:26Waxing Crescent20Tue
21Wed12:455.81:246.36:401.07:381.57:137:25Waxing Crescent21Wed
22Thu1:325.72:106.17:241.38:321.77:147:24First Quarter22Thu
23Fri2:225.63:006.18:161.49:281.77:147:22First Quarter23Fri
24Sat3:155.63:556.19:151.510:231.67:157:21First Quarter24Sat
25Sun4:125.74:536.210:141.411:141.47:157:20First Quarter25Sun
26Mon5:105.85:496.311:101.27:167:18Waxing Gibbous26Mon
27Tue6:066.16:396.512:021.212:031.07:177:17Waxing Gibbous27Tue
28Wed6:566.47:256.712:470.912:550.87:177:16Waxing Gibbous28Wed
29Thu7:426.78:066.81:320.71:450.57:187:15Waxing Gibbous29Thu
30Fri8:256.98:466.82:150.42:350.47:187:13Full Moon30Fri
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 4:08 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 transitional phase. Tonight's moon is 75% 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 is the moon phase in St. Marys, St. Marys River, GA tonight?

Tonight the moon over St. Marys, St. Marys River, GA is Waning Gibbous (75% 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.

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