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

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in St. Marys, St. Marys River, GA.
Next low tide (tomorrow) : in 2h 37m at 1:38 am (0.3 ft)
Next high tide (tomorrow) : 7:40 am (5.7 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 - May 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:106.212:335.46:350.56:180.36:428:04Waning Gibbous1Tue
2Wed12:496.21:165.37:200.67:030.46:418:05Waning Gibbous2Wed
3Thu1:336.12:045.38:120.78:000.56:408:05Third Quarter3Thu
4Fri2:246.02:595.39:110.79:070.56:398:06Third Quarter4Fri
5Sat3:246.04:035.510:110.610:180.46:388:07Third Quarter5Sat
6Sun4:335.95:125.811:100.311:260.36:378:07Third Quarter6Sun
7Mon5:466.06:206.212:070.06:368:08Waning Crescent7Mon
8Tue6:516.17:226.712:300.01:02-0.46:368:09Waning Crescent8Tue
9Wed7:496.28:187.11:33-0.31:56-0.66:358:09Waning Crescent9Wed
10Thu8:426.39:127.32:32-0.52:48-0.96:348:10New Moon10Thu
11Fri9:356.210:047.43:28-0.73:38-0.96:338:11New Moon11Fri
12Sat10:276.110:577.44:21-0.74:27-0.96:338:11New Moon12Sat
13Sun11:205.911:497.25:11-0.65:14-0.76:328:12Waxing Crescent13Sun
14Mon12:125.76:01-0.36:02-0.36:318:13Waxing Crescent14Mon
15Tue12:406.91:035.56:520.06:510.16:318:13Waxing Crescent15Tue
16Wed1:286.51:545.47:440.37:450.56:308:14Waxing Crescent16Wed
17Thu2:156.22:445.38:370.58:420.86:298:14First Quarter17Thu
18Fri3:025.93:365.39:310.69:420.96:298:15First Quarter18Fri
19Sat3:515.74:305.410:220.610:390.96:288:16First Quarter19Sat
20Sun4:435.65:265.611:100.511:340.96:288:16First Quarter20Sun
21Mon5:365.56:195.811:560.46:278:17Waxing Gibbous21Mon
22Tue6:285.67:096.112:250.712:400.36:278:18Waxing Gibbous22Tue
23Wed7:165.77:546.31:150.51:230.26:268:18Waxing Gibbous23Wed
24Thu8:015.78:376.42:030.42:050.16:268:19Waxing Gibbous24Thu
25Fri8:445.79:186.42:490.32:460.06:258:20Full Moon25Fri
26Sat9:255.69:586.43:330.23:240.06:258:20Full Moon26Sat
27Sun10:075.510:366.44:140.14:020.06:258:21Full Moon27Sun
28Mon10:485.411:156.34:550.24:400.06:248:21Full Moon28Mon
29Tue11:305.311:546.35:350.25:190.06:248:22Waning Gibbous29Tue
30Wed12:155.26:170.36:020.06:248:22Waning Gibbous30Wed
31Thu12:376.21:025.37:030.36:510.16:238:23Waning Gibbous31Thu
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 4:39 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 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