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

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in St. Marys, St. Marys River, GA.
Next low tide (tomorrow) : 1:38 am (0.3 ft)
Next high tide : in 33m at 7:25 pm (6.9 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:49 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Sep 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:315.76:146.811:340.27:027:49Waning Crescent1Sat
2Sun6:315.97:086.912:260.612:300.27:027:48Waning Crescent2Sun
3Mon7:246.07:566.91:180.51:240.17:037:47Waning Crescent3Mon
4Tue8:126.28:386.92:070.42:140.27:047:46New Moon4Tue
5Wed8:566.39:186.82:520.43:020.27:047:45New Moon5Wed
6Thu9:386.49:556.63:330.43:460.37:057:43New Moon6Thu
7Fri10:196.410:326.54:110.44:270.47:057:42New Moon7Fri
8Sat11:006.311:116.34:460.55:070.67:067:41Waxing Crescent8Sat
9Sun11:416.211:506.15:200.75:460.97:067:40Waxing Crescent9Sun
10Mon12:226.15:530.86:271.17:077:38Waxing Crescent10Mon
11Tue12:325.91:046.06:271.07:111.47:087:37Waxing Crescent11Tue
12Wed1:155.81:486.07:051.18:021.67:087:36Waxing Crescent12Wed
13Thu2:015.62:355.97:511.29:001.77:097:34First Quarter13Thu
14Fri2:505.53:286.08:461.310:001.77:097:33First Quarter14Fri
15Sat3:455.54:286.19:471.210:571.57:107:32First Quarter15Sat
16Sun4:455.55:316.310:471.011:511.27:107:31First Quarter16Sun
17Mon5:465.76:296.611:450.77:117:29Waxing Gibbous17Mon
18Tue6:436.17:216.912:430.912:420.47:127:28Waxing Gibbous18Tue
19Wed7:356.48:097.11:340.61:380.17:127:27Waxing Gibbous19Wed
20Thu8:246.88:567.32:230.22:33-0.27:137:26Full Moon20Thu
21Fri9:147.19:437.33:10-0.13:26-0.37:137:24Full Moon21Fri
22Sat10:047.310:327.13:57-0.34:18-0.47:147:23Full Moon22Sat
23Sun10:587.411:256.94:44-0.45:10-0.27:147:22Waning Gibbous23Sun
24Mon11:557.45:31-0.36:040.07:157:20Waning Gibbous24Mon
25Tue12:196.612:527.36:20-0.17:010.47:167:19Waning Gibbous25Tue
26Wed1:156.41:517.27:130.28:030.77:167:18Waning Gibbous26Wed
27Thu2:126.12:507.18:120.59:080.97:177:17Third Quarter27Thu
28Fri3:115.93:506.99:140.710:121.07:177:15Third Quarter28Fri
29Sat4:135.94:526.810:170.811:100.97:187:14Third Quarter29Sat
30Sun4:156.04:506.810:160.811:040.86:196:13Waning Crescent30Sun
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 10:31 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 13% 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 Waning Crescent (13% 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