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

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in St. Marys, St. Marys River, GA.
Next low tide : 2:39 pm (-0.6 ft)
Next high tide : in 1h 16m at 8:37 am (6.0 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:50 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Nov 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:275.63:466.39:271.510:141.47:406:38Third Quarter1Sun
2Mon4:235.74:426.310:261.411:051.27:416:38Third Quarter2Mon
3Tue5:215.95:386.411:231.211:530.97:426:37Waning Crescent3Tue
4Wed6:166.26:316.512:170.97:436:36Waning Crescent4Wed
5Thu7:076.67:206.712:410.61:110.67:446:35Waning Crescent5Thu
6Fri7:546.98:066.81:290.32:040.47:446:34Waning Crescent6Fri
7Sat8:407.28:526.82:160.02:560.27:456:34New Moon7Sat
8Sun9:287.49:406.73:04-0.23:480.07:466:33New Moon8Sun
9Mon10:187.510:326.63:52-0.34:390.07:476:32New Moon9Mon
10Tue11:137.511:286.54:40-0.45:300.07:486:32Waxing Crescent10Tue
11Wed12:127.45:30-0.36:240.17:486:31Waxing Crescent11Wed
12Thu12:286.41:107.36:230.07:200.37:496:30Waxing Crescent12Thu
13Fri1:286.32:087.17:220.28:200.47:506:30First Quarter13Fri
14Sat2:286.33:066.98:250.59:210.47:516:29First Quarter14Sat
15Sun3:296.34:056.89:310.610:200.37:526:29First Quarter15Sun
16Mon4:306.45:046.610:350.611:150.27:536:28First Quarter16Mon
17Tue5:316.66:006.511:350.67:546:28Waxing Gibbous17Tue
18Wed6:276.86:506.512:060.112:310.57:546:27Waxing Gibbous18Wed
19Thu7:187.07:366.412:540.01:240.57:556:27Waxing Gibbous19Thu
20Fri8:037.18:186.31:410.02:140.47:566:27Waxing Gibbous20Fri
21Sat8:467.18:586.32:250.03:000.47:576:26Full Moon21Sat
22Sun9:267.19:376.13:060.03:430.57:586:26Full Moon22Sun
23Mon10:057.010:186.03:460.14:240.57:596:26Full Moon23Mon
24Tue10:456.910:595.94:240.25:030.77:596:25Full Moon24Tue
25Wed11:246.711:425.75:000.45:410.88:006:25Waning Gibbous25Wed
26Thu12:046.55:370.66:190.98:016:25Waning Gibbous26Thu
27Fri12:265.612:456.46:140.86:591.18:026:25Waning Gibbous27Fri
28Sat1:115.51:276.36:560.97:431.18:036:24Waning Gibbous28Sat
29Sun1:565.42:106.27:451.18:321.18:046:24Third Quarter29Sun
30Mon2:435.42:576.18:421.29:241.18:046:24Third Quarter30Mon
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 11:38 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 2% 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 New Moon (2% 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