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

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in St. Marys, St. Marys River, GA.
Next low tide (tomorrow) : 4:19 am (0.3 ft)
Next high tide : in 11m at 10:04 pm (6.3 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 6:42 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Sep 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:205.76:086.911:280.17:027:49Waning Crescent1Tue
2Wed6:285.97:097.112:220.512:29-0.17:037:48Waning Crescent2Wed
3Thu7:286.28:037.21:200.31:27-0.27:037:47Waning Crescent3Thu
4Fri8:226.48:527.22:130.12:24-0.37:047:45New Moon4Fri
5Sat9:136.69:387.13:030.03:17-0.37:047:44New Moon5Sat
6Sun10:026.710:226.93:490.04:06-0.17:057:43New Moon6Sun
7Mon10:496.711:046.64:320.14:530.17:067:42New Moon7Mon
8Tue11:356.611:466.35:120.25:380.47:067:40Waxing Crescent8Tue
9Wed12:206.55:510.56:220.87:077:39Waxing Crescent9Wed
10Thu12:276.11:046.36:290.77:091.17:077:38Waxing Crescent10Thu
11Fri1:095.91:476.27:091.07:591.47:087:37Waxing Crescent11Fri
12Sat1:535.72:336.17:531.28:541.57:087:35First Quarter12Sat
13Sun2:415.63:236.18:441.39:501.67:097:34First Quarter13Sun
14Mon3:335.64:186.19:391.310:451.57:107:33First Quarter14Mon
15Tue4:305.65:166.210:351.211:361.37:107:31First Quarter15Tue
16Wed5:285.76:126.411:281.17:117:30Waxing Gibbous16Wed
17Thu6:245.97:026.612:251.112:190.97:117:29Waxing Gibbous17Thu
18Fri7:146.17:476.81:120.91:090.77:127:28Waxing Gibbous18Fri
19Sat7:596.48:286.91:560.71:580.57:127:26Waxing Gibbous19Sat
20Sun8:426.69:076.92:390.52:460.37:137:25Full Moon20Sun
21Mon9:236.79:466.93:200.43:330.27:147:24Full Moon21Mon
22Tue10:046.910:276.74:010.24:190.17:147:22Full Moon22Tue
23Wed10:496.911:116.64:410.15:060.27:157:21Waning Gibbous23Wed
24Thu11:397.05:240.15:560.47:157:20Waning Gibbous24Thu
25Fri12:016.412:337.06:090.26:500.77:167:19Waning Gibbous25Fri
26Sat12:556.21:317.07:010.47:510.97:167:17Waning Gibbous26Sat
27Sun1:536.02:336.98:000.58:581.17:177:16Third Quarter27Sun
28Mon2:575.93:406.99:050.610:051.07:187:15Third Quarter28Mon
29Tue4:055.94:487.010:120.611:080.97:187:14Third Quarter29Tue
30Wed5:156.05:547.011:160.57:197:12Waning Crescent30Wed
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 1:11 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 100% 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 Full Moon (100% 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